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Daniela G, Bensing Paige C, Dixon KN, Kah-Chung L. Cocaine diminishes consolidation of cued fear memory in female rats through interactions with ventral hippocampal D2 receptors. Pharmacol Biochem Behav 2024:173863. [PMID: 39186953 DOI: 10.1016/j.pbb.2024.173863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 08/21/2024] [Accepted: 08/23/2024] [Indexed: 08/28/2024]
Abstract
In addition to cocaine's addictive properties, cocaine use may lead to heightened risk-taking behavior. The disruptive effects of cocaine on aversive memory formation may underlie this behavior. The present study investigated the effects of cocaine on fear memory using a cued fear conditioning paradigm in female Sprague Dawley rats, and further determined the role of D2 receptors in modulating the effect of cocaine on cued fear expression. Animals received six evenly spaced shocks preceded by a tone. The following day, rats were returned to the fear chamber where tones, but no shocks, were delivered. In Experiment 1, separate or concurrent administrations of cocaine (15 mg/kg; i.p.) and the D2 receptor antagonist eticlopride (0.1 mg/kg; i.p.) were given immediately after conditioning trials. It was determined that cocaine administration during the consolidation period diminished the expression of cued fear during the subsequent test day. Concurrent eticlopride administration attenuated this effect, indicating the involvement of D2 receptors in the deleterious effects of cocaine on fear memory consolidation. In Experiment 2, eticlopride (0.05 μg) was infused directly into the ventral hippocampus (VH) after fear conditioning and before cocaine administration. Cocaine continued to disrupt consolidation of cued and contextual fear memory, and concurrent intra-VH eticlopride blocked this effect, thereby demonstrating that VH D2 receptors mediate cocaine-induced impairment of fear memory consolidation. Overall, the present study provides evidence that acute cocaine administration impairs aversive memory formation and establishes a potential circuit through which cocaine induces its detrimental effects on fear memory consolidation.
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Affiliation(s)
- Gonzalez Daniela
- Neuroscience Program, Trinity University, San Antonio, TX, United States of America
| | - C Bensing Paige
- Neuroscience Program, Trinity University, San Antonio, TX, United States of America
| | - Katherine N Dixon
- Neuroscience Program, Trinity University, San Antonio, TX, United States of America
| | - Leong Kah-Chung
- Neuroscience Program, Trinity University, San Antonio, TX, United States of America.
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2
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Tian X, Russo SJ, Li L. Behavioral Animal Models and Neural-Circuit Framework of Depressive Disorder. Neurosci Bull 2024:10.1007/s12264-024-01270-7. [PMID: 39120643 DOI: 10.1007/s12264-024-01270-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/26/2024] [Indexed: 08/10/2024] Open
Abstract
Depressive disorder is a chronic, recurring, and potentially life-endangering neuropsychiatric disease. According to a report by the World Health Organization, the global population suffering from depression is experiencing a significant annual increase. Despite its prevalence and considerable impact on people, little is known about its pathogenesis. One major reason is the scarcity of reliable animal models due to the absence of consensus on the pathology and etiology of depression. Furthermore, the neural circuit mechanism of depression induced by various factors is particularly complex. Considering the variability in depressive behavior patterns and neurobiological mechanisms among different animal models of depression, a comparison between the neural circuits of depression induced by various factors is essential for its treatment. In this review, we mainly summarize the most widely used behavioral animal models and neural circuits under different triggers of depression, aiming to provide a theoretical basis for depression prevention.
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Affiliation(s)
- Xiangyun Tian
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Scott J Russo
- Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
| | - Long Li
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
- University of the Chinese Academy of Sciences, Beijing, 100049, China.
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3
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Dubinsky JM, Hamid AA. The neuroscience of active learning and direct instruction. Neurosci Biobehav Rev 2024; 163:105737. [PMID: 38796122 DOI: 10.1016/j.neubiorev.2024.105737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 05/13/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Throughout the educational system, students experiencing active learning pedagogy perform better and fail less than those taught through direct instruction. Can this be ascribed to differences in learning from a neuroscientific perspective? This review examines mechanistic, neuroscientific evidence that might explain differences in cognitive engagement contributing to learning outcomes between these instructional approaches. In classrooms, direct instruction comprehensively describes academic content, while active learning provides structured opportunities for learners to explore, apply, and manipulate content. Synaptic plasticity and its modulation by arousal or novelty are central to all learning and both approaches. As a form of social learning, direct instruction relies upon working memory. The reinforcement learning circuit, associated agency, curiosity, and peer-to-peer social interactions combine to enhance motivation, improve retention, and build higher-order-thinking skills in active learning environments. When working memory becomes overwhelmed, additionally engaging the reinforcement learning circuit improves retention, providing an explanation for the benefits of active learning. This analysis provides a mechanistic examination of how emerging neuroscience principles might inform pedagogical choices at all educational levels.
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Affiliation(s)
- Janet M Dubinsky
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA.
| | - Arif A Hamid
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
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4
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Sekeres MJ, Schomaker J, Nadel L, Tse D. To update or to create? The influence of novelty and prior knowledge on memory networks. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230238. [PMID: 38853571 PMCID: PMC11343309 DOI: 10.1098/rstb.2023.0238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 06/11/2024] Open
Abstract
Schemas are foundational mental structures shaped by experience. They influence behaviour, guide the encoding of new memories and are shaped by associated information. The adaptability of memory schemas facilitates the integration of new information that aligns with existing knowledge structures. First, we discuss how novel information consistent with an existing schema can be swiftly assimilated when presented. This cognitive updating is facilitated by the interaction between the hippocampus and the prefrontal cortex. Second, when novel information is inconsistent with the schema, it likely engages the hippocampus to encode the information as part of an episodic memory trace. Third, novelty may enhance hippocampal dopamine through either the locus coeruleus or ventral tegmental area pathways, with the pathway involved potentially depending on the type of novelty encountered. We propose a gradient theory of schema and novelty to elucidate the neural processes by which schema updating or novel memory traces are formed. It is likely that experiences vary along a familiarity-novelty continuum, and the degree to which new experiences are increasingly novel will guide whether memory for a new experience either integrates into an existing schema or prompts the creation of a new cognitive framework. This article is part of the theme issue 'Long-term potentiation: 50 years on'.
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Affiliation(s)
- Melanie J. Sekeres
- School of Psychology, University of Ottawa, Ottawa, OntarioK1N 6N5, Canada
| | - Judith Schomaker
- Health, Medical & Neuropsychology, Leiden University, Leiden2333 AK, The Netherlands
- Leiden Institute for Brain and Cognition, Leiden, The Netherlands
| | - Lynn Nadel
- Department of Psychology, University of Arizona, Tucson, AZ85721, USA
| | - Dorothy Tse
- Department of Psychology, Edge Hill University, OrmskirkL39 4QP, UK
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5
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Heer CM, Sheffield MEJ. Distinct catecholaminergic pathways projecting to hippocampal CA1 transmit contrasting signals during navigation in familiar and novel environments. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.29.569214. [PMID: 38076843 PMCID: PMC10705417 DOI: 10.1101/2023.11.29.569214] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Neuromodulatory inputs to the hippocampus play pivotal roles in modulating synaptic plasticity, shaping neuronal activity, and influencing learning and memory. Recently it has been shown that the main sources of catecholamines to the hippocampus, ventral tegmental area (VTA) and locus coeruleus (LC), may have overlapping release of neurotransmitters and effects on the hippocampus. Therefore, to dissect the impacts of both VTA and LC circuits on hippocampal function, a thorough examination of how these pathways might differentially operate during behavior and learning is necessary. We therefore utilized 2-photon microscopy to functionally image the activity of VTA and LC axons within the CA1 region of the dorsal hippocampus in head-fixed male mice navigating linear paths within virtual reality (VR) environments. We found that within familiar environments some VTA axons and the vast majority of LC axons showed a correlation with the animals' running speed. However, as mice approached previously learned rewarded locations, a large majority of VTA axons exhibited a gradual ramping-up of activity, peaking at the reward location. In contrast, LC axons displayed a pre-movement signal predictive of the animal's transition from immobility to movement. Interestingly, a marked divergence emerged following a switch from the familiar to novel VR environments. Many LC axons showed large increases in activity that remained elevated for over a minute, while the previously observed VTA axon ramping-to-reward dynamics disappeared during the same period. In conclusion, these findings highlight distinct roles of VTA and LC catecholaminergic inputs in the dorsal CA1 hippocampal region. These inputs encode unique information, with reward information in VTA inputs and novelty and kinematic information in LC inputs, likely contributing to differential modulation of hippocampal activity during behavior and learning.
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Affiliation(s)
- Chad M Heer
- The Department of Neurobiology, The University of Chicago, Chicago, IL, USA
| | - Mark E J Sheffield
- The Department of Neurobiology, The University of Chicago, Chicago, IL, USA
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6
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Islam KUS, Blaess S. The impact of the mesoprefrontal dopaminergic system on the maturation of interneurons in the murine prefrontal cortex. Front Neurosci 2024; 18:1403402. [PMID: 39035778 PMCID: PMC11257905 DOI: 10.3389/fnins.2024.1403402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 06/20/2024] [Indexed: 07/23/2024] Open
Abstract
The prefrontal cortex (PFC) undergoes a protracted maturation process. This is true both for local interneurons and for innervation from midbrain dopaminergic (mDA) neurons. In the striatum, dopaminergic (DA) neurotransmission is required for the maturation of medium spiny neurons during a critical developmental period. To investigate whether DA innervation influences the maturation of interneurons in the PFC, we used a conditional knockout (cKO) mouse model in which innervation from mDA neurons to the mPFC (mesoprefrontal innnervation) is not established during development. In this mouse model, the maturation of parvalbumin (PV) and calbindin (CB) interneuron populations in the PFC is dysregulated during a critical period in adolescence with changes persisting into adulthood. PV interneurons are particularly vulnerable to lack of mesoprefrontal input, showing an inability to maintain adequate PV expression with a concomitant decrease in Gad1 expression levels. Interestingly, lack of mesoprefrontal innervation does not appear to induce compensatory changes such as upregulation of DA receptor expression in PFC neurons or increased innervation density of other neuromodulatory (serotonergic and noradrenergic) innervation. In conclusion, our study shows that adolescence is a sensitive period during which mesoprefrontal input plays a critical role in promoting the maturation of specific interneuron subgroups. The results of this study will help to understand how a dysregulated mesoprefrontal DA system contributes to the pathophysiology of neurodevelopmental disorders.
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Affiliation(s)
| | - Sandra Blaess
- Neurodevelopmental Genetics, Institute of Reconstructive Neurobiology, Medical Faculty, University of Bonn, Bonn, Germany
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Kafkas A. Eyes on Memory: Pupillometry in Encoding and Retrieval. Vision (Basel) 2024; 8:37. [PMID: 38922182 PMCID: PMC11209248 DOI: 10.3390/vision8020037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/04/2024] [Accepted: 06/08/2024] [Indexed: 06/27/2024] Open
Abstract
This review critically examines the contributions of pupillometry to memory research, primarily focusing on its enhancement of our understanding of memory encoding and retrieval mechanisms mainly investigated with the recognition memory paradigm. The evidence supports a close link between pupil response and memory formation, notably influenced by the type of novelty detected. This proposal reconciles inconsistencies in the literature regarding pupil response patterns that may predict successful memory formation, and highlights important implications for encoding mechanisms. The review also discusses the pupil old/new effect and its significance in the context of recollection and in reflecting brain signals related to familiarity or novelty detection. Additionally, the capacity of pupil response to serve as a true memory signal and to distinguish between true and false memories is evaluated. The evidence provides insights into the nature of false memories and offers a novel understanding of the cognitive mechanisms involved in memory distortions. When integrated with rigorous experimental design, pupillometry can significantly refine theoretical models of memory encoding and retrieval. Furthermore, combining pupillometry with neuroimaging and pharmacological interventions is identified as a promising direction for future research.
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Affiliation(s)
- Alex Kafkas
- School of Health Sciences, Division of Psychology, Communication and Human Neuroscience, University of Manchester, Manchester M13 9PL, UK
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Peshev B, Ivanova P, Krushovlieva D, Kortenska L, Atanasova D, Rashev P, Lazarov N, Tchekalarova J. Predatory Odor Exposure as a Potential Paradigm for Studying Emotional Modulation of Memory Consolidation-The Role of the Noradrenergic Transmission in the Basolateral Amygdala. Int J Mol Sci 2024; 25:6576. [PMID: 38928281 PMCID: PMC11204360 DOI: 10.3390/ijms25126576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/09/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
The pivotal role of the basolateral amygdala (BLA) in the emotional modulation of hippocampal plasticity and memory consolidation is well-established. Specifically, multiple studies have demonstrated that the activation of the noradrenergic (NA) system within the BLA governs these modulatory effects. However, most current evidence has been obtained by direct infusion of synthetic NA or beta-adrenergic agonists. In the present study, we aimed to investigate the effect of endogenous NA release in the BLA, induced by a natural aversive stimulus (coyote urine), on memory consolidation for a low-arousing, hippocampal-dependent task. Our experiments combined a weak object location task (OLT) version with subsequent mild predator odor exposure (POE). To investigate the role of endogenous NA in the BLA in memory modulation, a subset of the animals (Wistar rats) was treated with the non-selective beta-blocker propranolol at the end of the behavioral procedures. Hippocampal tissue was collected 90 min after drug infusion or after the OLT test, which was performed 24 h later. We used the obtained samples to estimate the levels of phosphorylated CREB (pCREB) and activity-regulated cytoskeleton-associated protein (Arc)-two molecular markers of experience-dependent changes in neuronal activity. The result suggests that POE has the potential to become a valuable behavioral paradigm for studying the interaction between BLA and the hippocampus in memory prioritization and selectivity.
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Affiliation(s)
- Bogomil Peshev
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.P.); (P.I.); (D.K.); (L.K.); (D.A.)
| | - Petya Ivanova
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.P.); (P.I.); (D.K.); (L.K.); (D.A.)
| | - Desislava Krushovlieva
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.P.); (P.I.); (D.K.); (L.K.); (D.A.)
| | - Lidia Kortenska
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.P.); (P.I.); (D.K.); (L.K.); (D.A.)
| | - Dimitrinka Atanasova
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.P.); (P.I.); (D.K.); (L.K.); (D.A.)
- Department of Anatomy, Faculty of Medicine, Trakia University, 6003 Stara Zagora, Bulgaria
| | - Pavel Rashev
- Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Nikolai Lazarov
- Department of Anatomy and Histology, Medical University of Sofia, 1431 Sofia, Bulgaria;
| | - Jana Tchekalarova
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (B.P.); (P.I.); (D.K.); (L.K.); (D.A.)
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9
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Kleinman MR, Foster DJ. Spatial localization of hippocampal replay requires dopamine signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.04.597435. [PMID: 38895442 PMCID: PMC11185723 DOI: 10.1101/2024.06.04.597435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Sequenced reactivations of hippocampal neurons called replays, concomitant with sharp-wave ripples in the local field potential, are critical for the consolidation of episodic memory, but whether replays depend on the brain's reward or novelty signals is unknown. Here we combined chemogenetic silencing of dopamine neurons in ventral tegmental area (VTA) and simultaneous electrophysiological recordings in dorsal hippocampal CA1, in freely behaving rats experiencing changes to reward magnitude and environmental novelty. Surprisingly, VTA silencing did not prevent ripple increases where reward was increased, but caused dramatic, aberrant ripple increases where reward was unchanged. These increases were associated with increased reverse-ordered replays. On familiar tracks this effect disappeared, and ripples tracked reward prediction error, indicating that non-VTA reward signals were sufficient to direct replay. Our results reveal a novel dependence of hippocampal replay on dopamine, and a role for a VTA-independent reward prediction error signal that is reliable only in familiar environments.
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Affiliation(s)
- Matthew R Kleinman
- Helen Wills Neuroscience Institute and Department of Psychology, University of California, Berkeley, CA 94720, USA
| | - David J Foster
- Helen Wills Neuroscience Institute and Department of Psychology, University of California, Berkeley, CA 94720, USA
- Lead contact
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10
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Schneider C, Prokopiou PC, Papp KV, Engels‐Domínguez N, Hsieh S, Juneau TA, Schultz AP, Rentz DM, Sperling RA, Johnson KA, Jacobs HIL. Atrophy links lower novelty-related locus coeruleus connectivity to cognitive decline in preclinical AD. Alzheimers Dement 2024; 20:3958-3971. [PMID: 38676563 PMCID: PMC11180940 DOI: 10.1002/alz.13839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/29/2024] [Accepted: 03/08/2024] [Indexed: 04/29/2024]
Abstract
INTRODUCTION Animal research has shown that tau pathology in the locus coeruleus (LC) is associated with reduced norepinephrine signaling, lower projection density to the medial temporal lobe (MTL), atrophy, and cognitive impairment. We investigated the contribution of LC-MTL functional connectivity (FCLC-MTL) on cortical atrophy across Braak stage regions and its impact on cognition. METHODS We analyzed functional magnetic resonance imaging and amyloid beta (Aβ) positron emission tomography data from 128 cognitively normal participants, associating novelty-related FCLC-MTL with longitudinal atrophy and cognition with and without Aβ moderation. RESULTS Cross-sectionally, lower FCLC-MTL was associated with atrophy in Braak stage II regions. Longitudinally, atrophy in Braak stage 2 to 4 regions related to lower baseline FCLC-MTL at elevated levels of Aβ, but not to other regions. Atrophy in Braak stage 2 regions mediated the relation between FCLC-MTL and subsequent cognitive decline. DISCUSSION FCLC-MTL is implicated in Aβ-related cortical atrophy, suggesting that LC-MTL connectivity could confer neuroprotective effects in preclinical AD. HIGHLIGHTS Novelty-related functional magnetic resonance imaging (fMRI) LC-medial temporal lobe (MTL) connectivity links to longitudinal Aβ-dependent atrophy. This relationship extended to higher Braak stage regions with increasing Aβ burden. Longitudinal MTL atrophy mediated the LC-MTL connectivity-cognition relationship. Our findings mirror the animal data on MTL atrophy following NE signal dysfunction.
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Affiliation(s)
- Christoph Schneider
- Gordon Center for Medical ImagingDepartment of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
| | - Prokopis C. Prokopiou
- Gordon Center for Medical ImagingDepartment of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
| | - Kathryn V. Papp
- Harvard Medical SchoolBostonMassachusettsUSA
- Center for Alzheimer Research and TreatmentDepartment of NeurologyBrigham and Women's HospitalBostonMassachusettsUSA
| | - Nina Engels‐Domínguez
- Gordon Center for Medical ImagingDepartment of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
- Faculty of HealthMedicine and Life SciencesSchool for Mental Health and NeuroscienceAlzheimer Centre LimburgMaastricht University, MDMaastrichtThe Netherlands
| | - Stephanie Hsieh
- The Athinoula A. Martinos Center for Biomedical ImagingDepartment of RadiologyMassachusetts General HospitalCharlestownMassachusettsUSA
| | - Truley A. Juneau
- Gordon Center for Medical ImagingDepartment of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Aaron P. Schultz
- The Athinoula A. Martinos Center for Biomedical ImagingDepartment of RadiologyMassachusetts General HospitalCharlestownMassachusettsUSA
- Department of NeurologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Dorene M. Rentz
- Harvard Medical SchoolBostonMassachusettsUSA
- Center for Alzheimer Research and TreatmentDepartment of NeurologyBrigham and Women's HospitalBostonMassachusettsUSA
- Department of NeurologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Reisa A. Sperling
- Harvard Medical SchoolBostonMassachusettsUSA
- Center for Alzheimer Research and TreatmentDepartment of NeurologyBrigham and Women's HospitalBostonMassachusettsUSA
- Department of NeurologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Keith A. Johnson
- Gordon Center for Medical ImagingDepartment of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
- Department of NeurologyMassachusetts General HospitalBostonMassachusettsUSA
| | - Heidi I. L. Jacobs
- Gordon Center for Medical ImagingDepartment of RadiologyMassachusetts General HospitalBostonMassachusettsUSA
- Harvard Medical SchoolBostonMassachusettsUSA
- Faculty of HealthMedicine and Life SciencesSchool for Mental Health and NeuroscienceAlzheimer Centre LimburgMaastricht University, MDMaastrichtThe Netherlands
- The Athinoula A. Martinos Center for Biomedical ImagingDepartment of RadiologyMassachusetts General HospitalCharlestownMassachusettsUSA
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11
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Wu K, Liu S. Hippocampal dopamine as a key regulator for learning deficits in Parkinson's disease. Neural Regen Res 2024; 19:1193-1194. [PMID: 37905860 DOI: 10.4103/1673-5374.385860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 09/18/2023] [Indexed: 11/02/2023] Open
Affiliation(s)
- Kun Wu
- Shanghai Key Laboratory of Brain Functional Genomics (Ministry of Education), Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai, China (Wu K, Liu S)
| | - Shuai Liu
- Shanghai Key Laboratory of Brain Functional Genomics (Ministry of Education), Affiliated Mental Health Center (ECNU), School of Psychology and Cognitive Science, East China Normal University, Shanghai, China (Wu K, Liu S)
- Shanghai Changning Mental Health Center, Shanghai, China (Liu S)
- NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, Shanghai, China (Liu S)
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12
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Lima KR, Neves BHSD, Sigaran GJ, Rosa ACDSD, Gomes GCM, Gomes de Gomes M, Mello-Carpes PB. Acute physical exercise prevents memory amnesia caused by protein synthesis inhibition in rats' hippocampus. Neurochem Int 2024; 176:105740. [PMID: 38636905 DOI: 10.1016/j.neuint.2024.105740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/29/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024]
Abstract
The benefits of physical exercise (PE) on memory consolidation have been well-documented in both healthy and memory-impaired animals. However, the underlying mechanisms through which PE exerts these effects are still unclear. In this study, we aimed to investigate the role of hippocampal protein synthesis in memory modulation by acute PE in rats. After novel object recognition (NOR) training, rats were subjected to a 30-min moderate-intensity acute PE on the treadmill, while control animals did not undergo any procedures. Using anisomycin (ANI) and rapamycin (RAPA), compounds that inhibit protein synthesis through different mechanisms, we manipulated protein synthesis in the CA1 region of the hippocampus to examine its contribution to memory consolidation. Memory was assessed on days 1, 7, and 14 post-training. Our results showed that inhibiting protein synthesis by ANI or RAPA impaired NOR memory consolidation in control animals. However, acute PE prevented this impairment without affecting memory persistence. We also evaluated brain-derived neurotrophic factor (BDNF) levels after acute PE at 0.5h, 2h, and 12h afterward and found no differences in levels compared to animals that did not engage in acute PE or were only habituated to the treadmill. Therefore, our findings suggest that acute PE could serve as a non-pharmacological intervention to enhance memory consolidation and prevent memory loss in conditions associated with hippocampal protein synthesis inhibition. This mechanism appears not to depend on BDNF synthesis in the early hours after exercise.
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Affiliation(s)
- Karine Ramires Lima
- Physiology Research Group, Stress, Memory and Behavior Lab, Federal University of Pampa, Uruguaiana, RS, Brazil
| | - Ben-Hur Souto das Neves
- Physiology Research Group, Stress, Memory and Behavior Lab, Federal University of Pampa, Uruguaiana, RS, Brazil
| | - Gabriela Jaques Sigaran
- Physiology Research Group, Stress, Memory and Behavior Lab, Federal University of Pampa, Uruguaiana, RS, Brazil
| | | | | | - Marcelo Gomes de Gomes
- Physiology Research Group, Stress, Memory and Behavior Lab, Federal University of Pampa, Uruguaiana, RS, Brazil; Center of Sciences, Tehcnologies and Health, Department of Health Sciences, Federal University of Santa Catarina, Araranguá, SC, Brazil
| | - Pâmela Billig Mello-Carpes
- Physiology Research Group, Stress, Memory and Behavior Lab, Federal University of Pampa, Uruguaiana, RS, Brazil.
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13
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Ivancovsky T, Baror S, Bar M. A shared novelty-seeking basis for creativity and curiosity: Response to the commentators. Behav Brain Sci 2024; 47:e119. [PMID: 38770845 DOI: 10.1017/s0140525x24000293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
In our target article, we proposed that curiosity and creativity are both manifestations of the same novelty-seeking process. We received 29 commentaries from diverse disciplines that add insights to our initial proposal. These commentaries ultimately expanded and supplemented our model. Here we draw attention to five central practical and theoretical issues that were raised by the commentators: (1) The complex construct of novelty and associated concepts; (2) the underlying subsystems and possible mechanisms; (3) the different pathways and subtypes of curiosity and creativity; (4) creativity and curiosity "in the wild"; (5) the possible link(s) between creativity and curiosity.
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Affiliation(s)
- Tal Ivancovsky
- Bar Ilan University Leslie and Susan Gonda Multidisciplinary Brain Research Center, Ramat Gan, Israel
- Universitat Autònoma de Barcelona Facultat de Psicologia, Barcelona, Spain
| | - Shira Baror
- The Edmond and Lily Safra Center for Brain Sciences, Hebrew University, Jerusalem, Israel
- Bar-Ilan University, Ramat Gan, Israel
| | - Moshe Bar
- Bar-Ilan University, Ramat Gan, Israel
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14
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Becker S, Modirshanechi A, Gerstner W. Computational models of intrinsic motivation for curiosity and creativity. Behav Brain Sci 2024; 47:e94. [PMID: 38770870 DOI: 10.1017/s0140525x23003424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
We link Ivancovsky et al.'s novelty-seeking model (NSM) to computational models of intrinsically motivated behavior and learning. We argue that dissociating different forms of curiosity, creativity, and memory based on the involvement of distinct intrinsic motivations (e.g., surprise and novelty) is essential to empirically test the conceptual claims of the NSM.
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Affiliation(s)
- Sophia Becker
- Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, ; https://lcnwww.epfl.ch/gerstner/
- School of Computer and Communication Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Alireza Modirshanechi
- Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, ; https://lcnwww.epfl.ch/gerstner/
- School of Computer and Communication Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Wulfram Gerstner
- Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, ; https://lcnwww.epfl.ch/gerstner/
- School of Computer and Communication Sciences, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
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15
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Servais A, Bastin C. An extension of the novelty-seeking model: Considering the plurality of novelty types and their differential interactions with memory. Behav Brain Sci 2024; 47:e114. [PMID: 38770875 DOI: 10.1017/s0140525x2300345x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
The novelty-seeking model suggests that curiosity and creativity originate from novelty processes. However, different types of novelty exist, each with distinctive relationships with memory, which potentially influence curiosity and creativity in distinct ways. We thus propose expanding the NSM model to consider these different novelty types and their specific involvement in creativity.
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Affiliation(s)
- Anaïs Servais
- GIGA-CRC In Vivo Imaging, University of Liège, Liège, Belgium https://www.uliege.be/cms/c_9054334/fr/repertoire?uid=u185523
| | - Christine Bastin
- GIGA-CRC In Vivo Imaging, University of Liège, Liège, Belgium https://www.uliege.be/cms/c_9054334/fr/repertoire?uid=u185523
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16
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Velazquez-Delgado C, Perez-Becerra J, Calderon V, Hernandez-Ortiz E, Bermudez-Rattoni F, Carrillo-Reid L. Paradoxical Boosting of Weak and Strong Spatial Memories by Hippocampal Dopamine Uncaging. eNeuro 2024; 11:ENEURO.0469-23.2024. [PMID: 38755011 PMCID: PMC11138129 DOI: 10.1523/eneuro.0469-23.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 05/01/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024] Open
Abstract
The ability to remember changes in the surroundings is fundamental for daily life. It has been proposed that novel events producing dopamine release in the hippocampal CA1 region could modulate spatial memory formation. However, the role of hippocampal dopamine increase on weak or strong spatial memories remains unclear. We show that male mice exploring two objects located in a familiar environment for 5 min created a short-term memory (weak) that cannot be retrieved 1 d later, whereas 10 min exploration created a long-term memory (strong) that can be retrieved 1 d later. Remarkably, hippocampal dopamine elevation during the encoding of weak object location memories (OLMs) allowed their retrieval 1 d later but dopamine elevation during the encoding of strong OLMs promoted the preference for a familiar object location over a novel object location after 24 h. Moreover, dopamine uncaging after the encoding of OLMs did not have effect on weak memories whereas on strong memories diminished the exploration of the novel object location. Additionally, hippocampal dopamine elevation during the retrieval of OLMs did not allow the recovery of weak memories and did not affect the retrieval of strong memory traces. Finally, dopamine elevation increased hippocampal theta oscillations, indicating that dopamine promotes the recurrent activation of specific groups of neurons. Our experiments demonstrate that hippocampal dopaminergic modulation during the encoding of OLMs depends on memory strength indicating that hyperdopaminergic levels that enhance weak experiences could compromise the normal storage of strong memories.
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Affiliation(s)
| | - Job Perez-Becerra
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla 76230, México
| | - Vladimir Calderon
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla 76230, México
| | - Eduardo Hernandez-Ortiz
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México 04510, México
| | - Federico Bermudez-Rattoni
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, México 04510, México
| | - Luis Carrillo-Reid
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Juriquilla 76230, México
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17
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Fleury S, Kolaric R, Espera J, Ha Q, Tomaio J, Gether U, Sørensen AT, Mingote S. Role of dopamine neurons in familiarity. Eur J Neurosci 2024; 59:2522-2534. [PMID: 38650479 DOI: 10.1111/ejn.16326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/15/2024] [Accepted: 03/09/2024] [Indexed: 04/25/2024]
Abstract
Dopamine neurons signal the salience of environmental stimuli and influence learning, although it is less clear if these neurons also determine the salience of memories. Ventral tegmental area (VTA) dopamine neurons increase their firing in the presence of new objects and reduce it upon repeated, inconsequential exposures, marking the shift from novelty to familiarity. This study investigates how dopamine neuron activity during repeated familiar object exposure affects an animal's preference for new objects in a subsequent novel object recognition (NOR) test. We hypothesize that a single familiarization session will not sufficiently lower dopamine activity, such that the memory of a familiar object remains salient, leading to equal exploration of familiar and novel objects and weaker NOR discrimination. In contrast, multiple familiarization sessions likely suppress dopamine activity more effectively, reducing the salience of the familiar object and enhancing subsequent novelty discrimination. Our experiments in mice indicated that multiple familiarization sessions reduce VTA dopamine neuron activation, as measured by c-Fos expression, and enhance novelty discrimination compared with a single familiarization session. Dopamine neurons that show responsiveness to novelty were primarily located in the paranigral nucleus of the VTA and expressed vesicular glutamate transporter 2 transcripts, marking them as dopamine-glutamate neurons. Chemogenetic inhibition of dopamine neurons during a single session paralleled the effects of multiple sessions, improving NOR. These findings suggest that a critical role of dopamine neurons during the transition from novelty to familiarity is to modulate the salience of an object's memory.
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Affiliation(s)
- Sixtine Fleury
- The Advanced Science Research Center, Graduate Center, City University of New York, New York, New York, USA
| | - Rhonda Kolaric
- The Advanced Science Research Center, Graduate Center, City University of New York, New York, New York, USA
| | - Justin Espera
- The Advanced Science Research Center, Graduate Center, City University of New York, New York, New York, USA
| | - Quan Ha
- The Advanced Science Research Center, Graduate Center, City University of New York, New York, New York, USA
| | - Jacquelyn Tomaio
- The Advanced Science Research Center, Graduate Center, City University of New York, New York, New York, USA
| | - Ulrik Gether
- Molecular Neuropharmacology and Genetics Laboratory, Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Toft Sørensen
- Molecular Neuropharmacology and Genetics Laboratory, Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Susana Mingote
- The Advanced Science Research Center, Graduate Center, City University of New York, New York, New York, USA
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18
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Tamboli S, Singh S, Topolnik D, El Amine Barkat M, Radhakrishnan R, Guet-McCreight A, Topolnik L. Mouse hippocampal CA1 VIP interneurons detect novelty in the environment and support recognition memory. Cell Rep 2024; 43:114115. [PMID: 38607918 DOI: 10.1016/j.celrep.2024.114115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 02/17/2024] [Accepted: 03/29/2024] [Indexed: 04/14/2024] Open
Abstract
In the CA1 hippocampus, vasoactive intestinal polypeptide-expressing interneurons (VIP-INs) play a prominent role in disinhibitory circuit motifs. However, the specific behavioral conditions that lead to circuit disinhibition remain uncertain. To investigate the behavioral relevance of VIP-IN activity, we employed wireless technologies allowing us to monitor and manipulate their function in freely behaving mice. Our findings reveal that, during spatial exploration in new environments, VIP-INs in the CA1 hippocampal region become highly active, facilitating the rapid encoding of novel spatial information. Remarkably, both VIP-INs and pyramidal neurons (PNs) exhibit increased activity when encountering novel changes in the environment, including context- and object-related alterations. Concurrently, somatostatin- and parvalbumin-expressing inhibitory populations show an inverse relationship with VIP-IN and PN activity, revealing circuit disinhibition that occurs on a timescale of seconds. Thus, VIP-IN-mediated disinhibition may constitute a crucial element in the rapid encoding of novelty and the acquisition of recognition memory.
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Affiliation(s)
- Suhel Tamboli
- Neuroscience Axis, CRCHUQ-CHUL, Quebec City, PQ, Canada; Department of Biochemistry, Microbiology, and Bioinformatics, Université Laval, Quebec City, PQ, Canada
| | - Sanjay Singh
- Neuroscience Axis, CRCHUQ-CHUL, Quebec City, PQ, Canada; Department of Biochemistry, Microbiology, and Bioinformatics, Université Laval, Quebec City, PQ, Canada
| | - Dimitry Topolnik
- Neuroscience Axis, CRCHUQ-CHUL, Quebec City, PQ, Canada; Department of Biochemistry, Microbiology, and Bioinformatics, Université Laval, Quebec City, PQ, Canada
| | - Mohamed El Amine Barkat
- Neuroscience Axis, CRCHUQ-CHUL, Quebec City, PQ, Canada; Department of Biochemistry, Microbiology, and Bioinformatics, Université Laval, Quebec City, PQ, Canada
| | - Risna Radhakrishnan
- Neuroscience Axis, CRCHUQ-CHUL, Quebec City, PQ, Canada; Department of Biochemistry, Microbiology, and Bioinformatics, Université Laval, Quebec City, PQ, Canada
| | | | - Lisa Topolnik
- Neuroscience Axis, CRCHUQ-CHUL, Quebec City, PQ, Canada; Department of Biochemistry, Microbiology, and Bioinformatics, Université Laval, Quebec City, PQ, Canada.
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19
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Yu M, Sun F, Xiang G, Zhang Y, Wang X, Liu X, Huang B, Li X, Zhang D. Liver kinase B-1 modulates the activity of dopamine neurons in the ventral tegmental area and regulates social memory formation. Front Mol Neurosci 2024; 17:1289476. [PMID: 38646099 PMCID: PMC11026561 DOI: 10.3389/fnmol.2024.1289476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/19/2024] [Indexed: 04/23/2024] Open
Abstract
Social memory is the ability to discriminate between familiar and unknown conspecifics. It is an important component of social cognition and is therefore essential for the establishment of social relationships. Although the neural circuit mechanisms underlying social memory encoding have been well investigated, little focus has been placed on the regulatory mechanisms of social memory processing. The dopaminergic system, originating from the midbrain ventral tegmental area (VTA), is a key modulator of cognitive function. This study aimed to illustrate its role in modulating social memory and explore the possible molecular mechanisms. Here, we show that the activation of VTA dopamine (DA) neurons is required for the formation, but not the retrieval, of social memory. Inhibition of VTA DA neurons before social interaction, but not 24 h after social interaction, significantly impaired social discrimination the following day. In addition, we showed that the activation of VTA DA neurons was regulated by the serine/threonine protein kinase liver kinase B1 (Lkb1). Deletion of Lkb1 in VTA DA neurons reduced the frequency of burst firing of dopaminergic neurons. Furthermore, Lkb1 plays an important role in regulating social behaviors. Both genetic and virus-mediated deletions of Lkb1 in the VTA of adult mice impaired social memory and subsequently attenuated social familiarization. Altogether, our results provide direct evidence linking social memory formation to the activation of VTA DA neurons in mice and illustrate the crucial role of Lkb1 in regulating VTA DA neuron function.
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Affiliation(s)
- Meng Yu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Fengjiao Sun
- Institute of Metabolic and Neuropsychiatric Disorders, Binzhou Medical University Hospital, Binzhou, China
| | - Guo Xiang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Yuhan Zhang
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Xuejun Wang
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Xia Liu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Bin Huang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Xingang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Di Zhang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
- Jinan Microecological Biomedicine Shandong Laboratory and Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
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20
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Sun Y, Takehara-Nishiuchi K. The medial prefrontal cortex leaves the hippocampus when it prepares for the future. Sci Prog 2024; 107:368504241261833. [PMID: 38872470 PMCID: PMC11179466 DOI: 10.1177/00368504241261833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Our memories help us plan for the future. In some cases, we use memories to repeat the choices that led to preferable outcomes in the past. The success of these memory-guided decisions depends on close interactions between the hippocampus and medial prefrontal cortex. In other cases, we need to use our memories to deduce hidden connections between the present and past situations to decide the best choice of action based on the expected outcome. Our recent study investigated neural underpinnings of such inferential decisions by monitoring neural activity in the medial prefrontal cortex and hippocampus in rats. We identified several neural activity patterns indicating awake memory trace reactivation and restructuring of functional connectivity among multiple neurons. We also found that these patterns occurred concurrently with the ongoing hippocampal activity when rats recalled past events but not when they planned new adaptive actions. Here, we discussed how these computational properties might contribute to success in inferential decision-making and propose a working model on how the medial prefrontal cortex changes its interaction with the hippocampus depending on whether it reflects on the past or looks into the future.
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Affiliation(s)
- Yixiong Sun
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Kaori Takehara-Nishiuchi
- Department of Cell and Systems Biology, University of Toronto, Toronto, ON, Canada
- Department of Psychology, University of Toronto, Toronto, ON, Canada
- Collaborative Program in Neuroscience, University of Toronto, Toronto, ON, Canada
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21
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Caragea VM, Méndez-Couz M, Manahan-Vaughan D. Dopamine receptors of the rodent fastigial nucleus support skilled reaching for goal-directed action. Brain Struct Funct 2024; 229:609-637. [PMID: 37615757 PMCID: PMC10978667 DOI: 10.1007/s00429-023-02685-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/07/2023] [Indexed: 08/25/2023]
Abstract
The dopaminergic (DA) system regulates both motor function, and learning and memory. The cerebellum supports motor control and the acquisition of procedural memories, including goal-directed behavior, and is subjected to DA control. Its fastigial nucleus (FN) controls and interprets body motion through space. The expression of dopamine receptors has been reported in the deep cerebellar nuclei of mice. However, the presence of dopamine D1-like (D1R) and D2-like (D2R) receptors in the rat FN has not yet been verified. In this study, we first confirmed that DA receptors are expressed in the FN of adult rats and then targeted these receptors to explore to what extent the FN modulates goal-directed behavior. Immunohistochemical assessment revealed expression of both D1R and D2R receptors in the FN, whereby the medial lateral FN exhibited higher receptor expression compared to the other FN subfields. Bilateral treatment of the FN with a D1R antagonist, prior to a goal-directed pellet-reaching task, significantly impaired task acquisition and decreased task engagement. D2R antagonism only reduced late performance post-acquisition. Once task acquisition had occurred, D1R antagonism had no effect on successful reaching, although it significantly decreased reaching speed, task engagement, and promoted errors. Motor coordination and ambulation were, however, unaffected as neither D1R nor D2R antagonism altered rotarod latencies or distance and velocity in an open field. Taken together, these results not only reveal a novel role for the FN in goal-directed skilled reaching, but also show that D1R expressed in FN regulate this process by modulating motivation for action.
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Affiliation(s)
- Violeta-Maria Caragea
- Department of Neurophysiology, Faculty of Medicine, Ruhr-University Bochum, Universitätsstr. 150, MA 4/150, 44780, Bochum, Germany
| | - Marta Méndez-Couz
- Department of Neurophysiology, Faculty of Medicine, Ruhr-University Bochum, Universitätsstr. 150, MA 4/150, 44780, Bochum, Germany
| | - Denise Manahan-Vaughan
- Department of Neurophysiology, Faculty of Medicine, Ruhr-University Bochum, Universitätsstr. 150, MA 4/150, 44780, Bochum, Germany.
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22
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Bustelli IB, Oliveira LM, Correa-Netto NF, Stilhano RS, Caetano AL. Behavioral effects of 6-hydroxydopamine-induced damage to nigro-striatal pathway and Locus coeruleus as a rodent model of Parkinson's disease. Behav Brain Res 2024; 462:114873. [PMID: 38266776 DOI: 10.1016/j.bbr.2024.114873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Parkinson's disease (PD) is a chronic and progressive neurodegenerative disorder characterized by the loss of dopaminergic neurons in the Substantia nigra pars compacta (SNpc), which leads to motor and non-motor symptoms (NMS). NMS can appear many years before the classical motor symptoms and are associated with the neurodegeneration of several nuclei; in this work, we highlight the neurodegeneration of Locus coeruleus (LC) in PD. The aim was to investigate the effects of depleting SNpc and LC catecholaminergic neurons on behavioral and neurobiological endpoints. Here we used 6-hydroxydopamine (6-OHDA) in order to induced neurotoxic damage in three independent experimental groups: SNpc lesion group, which 6-OHDA was injected into CPu (CPu-6-OHDA), LC lesion group, which 6-OHDA was injected directly on LC to selectively caused a damage on this nucleus (LC-6-OHDA), and the combined SNpc and LC lesion group (CL-6-OHDA). Next, the behavioral studies were performed using the Morris water maze (MWM), open field (OF), and elevated plus maze (EPM). After stereotaxic surgeries, the animals showed a loss of 67% and 77% of Tyrosine hydroxylase (TH) reactive neurons in the SNpc and LC, respectively. The behavioral analysis showed the anxiety-like behavior in CL-6-OHDA group in the EPM test; in the MWM test, the combined lesions (CL-6-OHDA) showed an impairment in memory acquisition and spatial memory; and no changes were observed in locomotor activity in all the tests. Furthermore, our investigation demonstrating the effects of depleting SN and LC catecholaminergic neurons on behavioral and neurobiological parameters. All these data together lead us to believe that a bilateral PD model including a LC bilateral degeneration is potentially a more accurate model to evaluate the NMS in the pathological development of the disease in rodents.
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Affiliation(s)
- Isabella B Bustelli
- Department of Physiological Sciences, Santa Casa de São Paulo School of Medical Sciences, São Paulo, SP 01221-020, Brazil
| | - Luiz M Oliveira
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Nelson F Correa-Netto
- Department of Physiological Sciences, Santa Casa de São Paulo School of Medical Sciences, São Paulo, SP 01221-020, Brazil
| | - Roberta S Stilhano
- Department of Physiological Sciences, Santa Casa de São Paulo School of Medical Sciences, São Paulo, SP 01221-020, Brazil
| | - Ariadiny L Caetano
- Department of Physiological Sciences, Santa Casa de São Paulo School of Medical Sciences, São Paulo, SP 01221-020, Brazil.
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23
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Adeyelu T, Vaughn T, Ogundele OM. VTA Excitatory Neurons Control Reward-driven Behavior by Modulating Infralimbic Cortical Firing. Neuroscience 2024; 548:50-68. [PMID: 38513762 DOI: 10.1016/j.neuroscience.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 03/09/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024]
Abstract
The functional dichotomy of anatomical regions of the medial prefrontal cortex (mPFC) has been tested with greater certainty in punishment-driven tasks, and less so in reward-oriented paradigms. In the infralimbic cortex (IL), known for behavioral suppression (STOP), tasks linked with reward or punishment are encoded through firing rate decrease or increase, respectively. Although the ventral tegmental area (VTA) is the brain region governing reward/aversion learning, the link between its excitatory neuron population and IL encoding of reward-linked behavioral expression is unclear. Here, we present evidence that IL ensembles use a population-based mechanism involving broad inhibition of principal cells at intervals when reward is presented or expected. The IL encoding mechanism was consistent across multiple sessions with randomized rewarded target sites. Most IL neurons exhibit FR (Firing Rate) suppression during reward acquisition intervals (T1), and subsequent exploration of previously rewarded targets when the reward is omitted (T2). Furthermore, FR suppression in putative IL ensembles persisted for intervals that followed reward-linked target events. Pairing VTA glutamate inhibition with reward acquisition events reduced the weight of reward-target association expressed as a lower affinity for previously rewarded targets. For these intervals, fewer IL neurons per mouse trial showed FR decrease and were accompanied by an increase in the percentage of units with no change in FR. Together, we conclude that VTA glutamate neurons are likely involved in establishing IL inhibition states that encode reward acquisition, and subsequent reward-target association.
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Affiliation(s)
- Tolulope Adeyelu
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA 70803, United States
| | - Tashonda Vaughn
- Department of Environmental Toxicology, College of Agriculture, Southern University A&M College, Baton Rouge, LA 70813, United States
| | - Olalekan M Ogundele
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA 70803, United States.
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24
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Tamosiunaite M, Tetzlaff C, Wörgötter F. Unsupervised learning of perceptual feature combinations. PLoS Comput Biol 2024; 20:e1011926. [PMID: 38442095 PMCID: PMC10942261 DOI: 10.1371/journal.pcbi.1011926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 03/15/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024] Open
Abstract
In many situations it is behaviorally relevant for an animal to respond to co-occurrences of perceptual, possibly polymodal features, while these features alone may have no importance. Thus, it is crucial for animals to learn such feature combinations in spite of the fact that they may occur with variable intensity and occurrence frequency. Here, we present a novel unsupervised learning mechanism that is largely independent of these contingencies and allows neurons in a network to achieve specificity for different feature combinations. This is achieved by a novel correlation-based (Hebbian) learning rule, which allows for linear weight growth and which is combined with a mechanism for gradually reducing the learning rate as soon as the neuron's response becomes feature combination specific. In a set of control experiments, we show that other existing advanced learning rules cannot satisfactorily form ordered multi-feature representations. In addition, we show that networks, which use this type of learning always stabilize and converge to subsets of neurons with different feature-combination specificity. Neurons with this property may, thus, serve as an initial stage for the processing of ecologically relevant real world situations for an animal.
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Affiliation(s)
- Minija Tamosiunaite
- Department for Computational Neuroscience, Third Physics Institute, University of Göttingen, Göttingen, Germany
- Vytautas Magnus University, Faculty of Informatics, Kaunas, Lithuania
| | - Christian Tetzlaff
- Computational Synaptic Physiology, Department for Neuro- and Sensory Physiology, University Medical Center Göttingen, Göttingen, Germany
- Campus Institute Data Science, Göttingen, Germany
| | - Florentin Wörgötter
- Department for Computational Neuroscience, Third Physics Institute, University of Göttingen, Göttingen, Germany
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25
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Sagheddu C, Stojanovic T, Kouhnavardi S, Savchenko A, Hussein AM, Pistis M, Monje FJ, Plasenzotti R, Aufy M, Studenik CR, Lubec J, Lubec G. Cognitive performance in aged rats is associated with differences in distinctive neuronal populations in the ventral tegmental area and altered synaptic plasticity in the hippocampus. Front Aging Neurosci 2024; 16:1357347. [PMID: 38469164 PMCID: PMC10926450 DOI: 10.3389/fnagi.2024.1357347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 02/12/2024] [Indexed: 03/13/2024] Open
Abstract
Introduction Deterioration of cognitive functions is commonly associated with aging, although there is wide variation in the onset and manifestation. Albeit heterogeneity in age-related cognitive decline has been studied at the cellular and molecular level, there is poor evidence for electrophysiological correlates. The aim of the current study was to address the electrophysiological basis of heterogeneity of cognitive functions in cognitively Inferior and Superior old (19-20 months) rats in the ventral tegmental area (VTA) and the hippocampus, having Young (12 weeks) rats as a control. The midbrain VTA operates as a hub amidst affective and cognitive facets, processing sensory inputs related to motivated behaviours and hippocampal memory. Increasing evidence shows direct dopaminergic and non-dopaminergic input from the VTA to the hippocampus. Methods Aged Superior and Inferior male rats were selected from a cohort of 88 animals based on their performance in a spatial learning and memory task. Using in vivo single-cell recording in the VTA, we examined the electrical activity of different neuronal populations (putative dopaminergic, glutamatergic and GABAergic neurons). In the same animals, basal synaptic transmission and synaptic plasticity were examined in hippocampal slices. Results Electrophysiological recordings from the VTA and hippocampus showed alterations associated with aging per se, together with differences specifically linked to the cognitive status of aged animals. In particular, the bursting activity of dopamine neurons was lower, while the firing frequency of glutamatergic neurons was higher in VTA of Inferior old rats. The response to high-frequency stimulation in hippocampal slices also discriminated between Superior and Inferior aged animals. Discussion This study provides new insight into electrophysiological information underlying compromised cerebral ageing. Further understanding of brain senescence, possibly related to neurocognitive decline, will help develop new strategies towards the preservation of a high quality of life.
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Affiliation(s)
- Claudia Sagheddu
- Division of Neuroscience and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, Monserrato, Italy
| | - Tamara Stojanovic
- Programme for Proteomics, Paracelsus Medical University, Salzburg, Austria
| | - Shima Kouhnavardi
- Programme for Proteomics, Paracelsus Medical University, Salzburg, Austria
- Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | - Artem Savchenko
- Programme for Proteomics, Paracelsus Medical University, Salzburg, Austria
- Institute of Pharmacology, Pavlov First Saint Petersburg State Medical University, St. Petersburg, Russia
| | - Ahmed M. Hussein
- Programme for Proteomics, Paracelsus Medical University, Salzburg, Austria
- Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Department of Zoology, Faculty of Science, Al-Azhar University, Asyut, Egypt
| | - Marco Pistis
- Division of Neuroscience and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, Monserrato, Italy
- Section of Cagliari, Neuroscience Institute National Research Council of Italy (CNR), Cagliari, Italy
- Unit of Clinical Pharmacology, University Hospital, Cagliari, Italy
| | - Francisco J. Monje
- Center for Physiology and Pharmacology, Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Vienna, Austria
| | - Roberto Plasenzotti
- Division of Biomedical Research, Medical University of Vienna, Vienna, Austria
| | - Mohammed Aufy
- Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | - Christian R. Studenik
- Division of Pharmacology and Toxicology, Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | - Jana Lubec
- Programme for Proteomics, Paracelsus Medical University, Salzburg, Austria
| | - Gert Lubec
- Programme for Proteomics, Paracelsus Medical University, Salzburg, Austria
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Nolden S, Turan G, Güler B, Günseli E. Prediction error and event segmentation in episodic memory. Neurosci Biobehav Rev 2024; 157:105533. [PMID: 38184184 DOI: 10.1016/j.neubiorev.2024.105533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/11/2023] [Accepted: 01/02/2024] [Indexed: 01/08/2024]
Abstract
Organizing the continuous flow of experiences into meaningful events is a crucial prerequisite for episodic memory. Prediction error and event segmentation both play important roles in supporting the genesis of meaningful mnemonic representations of events. We review theoretical contributions discussing the relationship between prediction error and event segmentation, as well as literature on episodic memory related to prediction error and event segmentation. We discuss the extent of overlap of mechanisms underlying memory emergence through prediction error and event segmentation, with a specific focus on attention and working memory. Finally, we identify areas in research that are currently developing and suggest future directions. We provide an overview of mechanisms underlying memory formation through predictions, violations of predictions, and event segmentation.
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Affiliation(s)
- Sophie Nolden
- Department for Developmental Psychology, Institute of Psychology, Goethe-University Frankfurt am Main, Germany; IDeA-Center for Research on Individual Development and Adaptive Education of Children at Risk, Frankfurt am Main, Germany.
| | - Gözem Turan
- Department for Developmental Psychology, Institute of Psychology, Goethe-University Frankfurt am Main, Germany; IDeA-Center for Research on Individual Development and Adaptive Education of Children at Risk, Frankfurt am Main, Germany
| | - Berna Güler
- Department of Psychology, Sabanci University, Istanbul, Turkey
| | - Eren Günseli
- Department of Psychology, Sabanci University, Istanbul, Turkey
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27
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Gambi C, Lelonkiewicz JR, Crepaldi D. Do Children (and Adults) Benefit From a Prediction Error Boost in One-Shot Word Learning? J Cogn 2024; 7:13. [PMID: 38223230 PMCID: PMC10785960 DOI: 10.5334/joc.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/22/2023] [Indexed: 01/16/2024] Open
Abstract
Influential theories and computational models suggest error-based learning plays an important role in language acquisition: Children learn new words by generating predictions about upcoming utterances and revising those predictions when they are erroneous. Critically, revising stronger (rather than weaker) predictions should further enhance learning. Although previously demonstrated in adults, such prediction error boost has not been conclusively shown in children. To close this gap, we tested 107 participants between the ages of 5 and 10. We found little evidence that word learning in this age group benefits from a prediction error boost. Moreover, we also failed to replicate previous evidence for such an effect in adults. Based on a detailed task analysis, we suggest the variation in adult findings may be partly explained by differences in encoding strategies and that, relatedly, the protracted development of the episodic memory system might explain why children do not experience robust benefits from having stronger (rather than weaker) predictions disconfirmed.
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Affiliation(s)
| | | | - Davide Crepaldi
- Scuola Internazionale Superiore di Studi Avanzati (SISSA), Italy
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28
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McMillen A, Chew Y. Neural mechanisms of dopamine function in learning and memory in Caenorhabditis elegans. Neuronal Signal 2024; 8:NS20230057. [PMID: 38572143 PMCID: PMC10987485 DOI: 10.1042/ns20230057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/03/2023] [Accepted: 12/11/2023] [Indexed: 04/05/2024] Open
Abstract
Research into learning and memory over the past decades has revealed key neurotransmitters that regulate these processes, many of which are evolutionarily conserved across diverse species. The monoamine neurotransmitter dopamine is one example of this, with countless studies demonstrating its importance in regulating behavioural plasticity. However, dopaminergic neural networks in the mammalian brain consist of hundreds or thousands of neurons, and thus cannot be studied at the level of single neurons acting within defined neural circuits. The nematode Caenorhabditis elegans (C. elegans) has an experimentally tractable nervous system with a completely characterized synaptic connectome. This makes it an advantageous system to undertake mechanistic studies into how dopamine encodes lasting yet flexible behavioural plasticity in the nervous system. In this review, we synthesize the research to date exploring the importance of dopaminergic signalling in learning, memory formation, and forgetting, focusing on research in C. elegans. We also explore the potential for dopamine-specific fluorescent biosensors in C. elegans to visualize dopaminergic neural circuits during learning and memory formation in real-time. We propose that the use of these sensors in C. elegans, in combination with optogenetic and other light-based approaches, will further illuminate the detailed spatiotemporal requirements for encoding behavioural plasticity in an accessible experimental system. Understanding the key molecules and circuit mechanisms that regulate learning and forgetting in more compact invertebrate nervous systems may reveal new druggable targets for enhancing memory storage and delaying memory loss in bigger brains.
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Affiliation(s)
- Anna McMillen
- College of Medicine and Public Health and Flinders Health and Medical Research Institute, Flinders University, Bedford Park, 5042, South Australia, Australia
| | - Yee Lian Chew
- College of Medicine and Public Health and Flinders Health and Medical Research Institute, Flinders University, Bedford Park, 5042, South Australia, Australia
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29
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da Silva Beraldo IJ, Prates Rodrigues M, Polanczyk RS, Verano-Braga T, Lopes-Aguiar C. Proteomic-Based Studies on Memory Formation in Normal and Neurodegenerative Disease-Affected Brains. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1443:129-158. [PMID: 38409419 DOI: 10.1007/978-3-031-50624-6_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
A critical aspect of cognition is the ability to acquire, consolidate, and evoke memories, which is considerably impaired by neurodegenerative disorders such as Alzheimer's and Parkinson's diseases. These mnemonic processes are dependent on signaling cascades, which involve protein expression and degradation. Recent mass spectrometry (MS)-based proteomics has opened a range of possibilities for the study of memory formation and impairment, making it possible to research protein systems not studied before. However, in the context of synaptic proteome related to learning processes and memory formation, a deeper understanding of the synaptic proteome temporal dynamics after induction of synaptic plasticity and the molecular changes underlying the cognitive deficits seen in neurodegenerative diseases is needed. This review analyzes the applications of proteomics for understanding memory processes in both normal and neurodegenerative conditions. Moreover, the most critical experimental studies have been summarized using the PANTHER overrepresentation test. Finally, limitations associated with investigations of memory studies in physiological and neurodegenerative disorders have also been discussed.
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Affiliation(s)
- Ikaro Jesus da Silva Beraldo
- Universidade Federal de Minas Gerais, Departamento de Fisiologia e Biofísica, Laboratório de Neurociências Comportamental e Molecular (LANEC), Belo Horizonte, Brazil
| | - Mateus Prates Rodrigues
- Universidade Federal de Minas Gerais, Departamento de Fisiologia e Biofísica, Laboratório de Neurociências Comportamental e Molecular (LANEC), Belo Horizonte, Brazil
| | - Rafaela Schuttenberg Polanczyk
- Universidade Federal de Minas Gerais, Departamento de Fisiologia e Biofísica, Laboratório de Neurociências Comportamental e Molecular (LANEC), Belo Horizonte, Brazil
| | - Thiago Verano-Braga
- Universidade Federal de Minas Gerais, Departamento de Fisiologia e Biofísica, Núcleo de Proteômica Funcional (NPF), Belo Horizonte, Brazil
- Instituto Nacional de Ciência e Tecnologia em Nano-Biofarmacêutica (INCT-Nanobiofar), Belo Horizonte, Brazil
| | - Cleiton Lopes-Aguiar
- Universidade Federal de Minas Gerais, Departamento de Fisiologia e Biofísica, Laboratório de Neurociências Comportamental e Molecular (LANEC), Belo Horizonte, Brazil.
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30
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Mo F, Kong F, Yang G, Xu Z, Liang W, Liu J, Zhang K, Liu Y, Lv S, Han M, Wang Y, Song Y, Wang M, Wu Y, Cai X. Integrated Three-Electrode Dual-Mode Detection Chip for Place Cell Analysis: Dopamine Facilitates the Role of Place Cells in Encoding Spatial Locations of Novel Environments and Rewards. ACS Sens 2023; 8:4765-4773. [PMID: 38015643 DOI: 10.1021/acssensors.3c01864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The functioning of place cells requires the involvement of multiple neurotransmitters, with dopamine playing a critical role in hippocampal place cell activity. However, the exact mechanisms through which dopamine influences place cell activity remain largely unknown. Herein, we present the development of the integrated three-electrode dual-mode detection chip (ITDDC), which enables simultaneous recording of the place cell activity and dopamine concentration fluctuation. The working electrode, reference electrode, and counter electrode are all integrated within the ITDDC in electrochemical detection, enabling the real-time in situ monitoring of dopamine concentrations in animals in motion. The reference, working, and counter electrodes are surface-modified using PtNPs and polypyrrole, PtNPs and PEDOT:PSS, and PtNPs, respectively. This modification allows for the detection of dopamine concentrations as low as 20 nM. We conducted dual-mode testing on mice in a novel environment and an environment with food rewards. We found distinct dopamine concentration variations along different paths within a novel environment, implying that different dopamine levels may contribute to spatial memory. Moreover, environmental food rewards elevate dopamine significantly, followed by the intense firing of reward place cells, suggesting a crucial role of dopamine in facilitating the encoding of reward-associated locations in animals. The real-time and in situ recording capabilities of ITDDC offer new opportunities to investigate the interplay between electrophysiology and dopamine during animal exploration and reward-based memory and provide a novel glimpse into the correlation between dopamine levels and place cell activity.
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Affiliation(s)
- Fan Mo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Fanli Kong
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Gucheng Yang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaojie Xu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Liang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Kui Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yaoyao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Shiya Lv
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Meiqi Han
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yu Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yilin Song
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yirong Wu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China
- School of Electronic, Electrical and Communication Engineering, University of the Chinese Academy of Sciences, Beijing 100049, China
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31
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Schroeder MN, Fullio CL, Ballarini F, Moncada D. Modulation of memory reconsolidation by adjacent novel tasks: timing defines the nature of change. Commun Biol 2023; 6:1288. [PMID: 38114781 PMCID: PMC10730840 DOI: 10.1038/s42003-023-05666-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023] Open
Abstract
Reconsolidation turns memories into a responsive state that allows their modulation until they stabilize again. This phenomenon attracted remarkable attention due to its potential impact on therapeutics and education. Recent evidence revealed that different memories undergo reconsolidation via a behavioral tagging process. Thus, their re-stabilization involves setting "reconsolidation-tags" and synthesizing plasticity-related proteins for their capture at the tagged sites. Here, we studied the possibility of affecting these fundamental mechanisms to modulate reconsolidation. Our findings, in laboratory rats, indicate that exploring a novel environment 60 min before or after memory reactivation improves spatial object recognition memory by promoting protein synthesis. Conversely, experiencing novelty immediately after reactivation impairs the reconsolidation by affecting the tags. Similar effects, but with a different optimal time window for improvement, occur in inhibitory avoidance memory. These results highlight the possibility of modulating existing memories using non-invasive interventions that selectively affect the fundamental mechanisms of behavioral tagging during their reconsolidation.
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Affiliation(s)
- Matías Nicolás Schroeder
- Laboratorio de Neurofisiología de la Memoria, Instituto de Biología Celular y Neurociencia, Facultad de Medicina (UBA/CONICET) - Instituto Tecnológico de Buenos Aires (ITBA), Ciudad Autónoma de Buenos Aires, Argentina
| | - Camila L Fullio
- Laboratorio de Neurofisiología de la Memoria, Instituto de Biología Celular y Neurociencia "Prof. E. De Robertis" (IBCN), Facultad de Medicina, UBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
| | - Fabricio Ballarini
- Laboratorio de neurociencia translacional, Instituto de Biología Celular y Neurociencia "Prof. E. De Robertis" (IBCN), Facultad de Medicina, UBA-CONICET, Ciudad Autónoma de Buenos Aires, Argentina
- Instituto Tecnológico de Buenos Aires, Av. Madero 399, Ciudad Autónoma de Buenos Aires, Argentina
| | - Diego Moncada
- Laboratorio de Neurofisiología de la Memoria, Instituto de Biología Celular y Neurociencia, Facultad de Medicina (UBA/CONICET) - Instituto Tecnológico de Buenos Aires (ITBA), Ciudad Autónoma de Buenos Aires, Argentina.
- Centro Integrativo de Biología y Química Aplicada, Universidad Bernardo O'Higgins, Santiago, Chile.
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32
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Shan Q, Tian Y, Chen H, Lin X, Tian Y. Reduction in the activity of VTA/SNc dopaminergic neurons underlies aging-related decline in novelty seeking. Commun Biol 2023; 6:1224. [PMID: 38042964 PMCID: PMC10693597 DOI: 10.1038/s42003-023-05571-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 11/10/2023] [Indexed: 12/04/2023] Open
Abstract
Curiosity, or novelty seeking, is a fundamental mechanism motivating animals to explore and exploit environments to improve survival, and is also positively associated with cognitive, intrapersonal and interpersonal well-being in humans. However, curiosity declines as humans age, and the decline even positively predicts the extent of cognitive decline in Alzheimer's disease patients. Therefore, determining the underlying mechanism, which is currently unknown, is an urgent task for the present aging society that is growing at an unprecedented rate. This study finds that seeking behaviors for both social and inanimate novelties are compromised in aged mice, suggesting that the aging-related decline in curiosity and novelty-seeking is a biological process. This study further identifies an aging-related reduction in the activity (manifesting as a reduction in spontaneous firing) of dopaminergic neurons in the ventral tegmental area (VTA) and substantia nigra pars compacta (SNc). Finally, this study establishes that this reduction in activity causally underlies the aging-related decline in novelty-seeking behaviors. This study potentially provides an interventional strategy for maintaining high curiosity in the aged population, i.e., compensating for the reduced activity of VTA/SNc dopaminergic neurons, enabling the aged population to cope more smoothly with the present growing aging society, physically, cognitively and socioeconomically.
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Affiliation(s)
- Qiang Shan
- Laboratory for Synaptic Plasticity, Shantou University Medical College, 515041, Shantou, Guangdong, China.
| | - Ye Tian
- Laboratory for Synaptic Plasticity, Shantou University Medical College, 515041, Shantou, Guangdong, China
| | - Hang Chen
- Laboratory for Synaptic Plasticity, Shantou University Medical College, 515041, Shantou, Guangdong, China
| | - Xiaoli Lin
- Laboratory for Synaptic Plasticity, Shantou University Medical College, 515041, Shantou, Guangdong, China
| | - Yao Tian
- Chern Institute of Mathematics, Nankai University, 300071, Tianjin, China
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33
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Aitken CBA, Jentzsch I, O'Connor AR. Towards a conflict account of déjà vu: The role of memory errors and memory expectation conflict in the experience of déjà vu. Neurosci Biobehav Rev 2023; 155:105467. [PMID: 37979736 DOI: 10.1016/j.neubiorev.2023.105467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 10/22/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023]
Abstract
Déjà vu can be defined as conflict between a subjective evaluation of familiarity and a concurrent evaluation of novelty. Accounts of the déjà vu experience have not explicitly referred to a "conflict account of déjà vu" despite the acceptance of conflict-based definitions of déjà vu and relatively recent neuroimaging work that has implicated brain areas associated with conflict as underpinning the experience. Conflict monitoring functioning follows a similar age-related trajectory to déjà vu with a peak in young adulthood and a subsequent age-related decline. In this narrative review of the literature to date, we consider how déjà vu is defined and how this has influenced the understanding of déjà vu. We also review how déjà vu can be understood within theories of recognition memory and cognitive control. Finally, we summarise the conflict account of déjà vu and propose that this account of the experience may provide a coherent explanation as to why déjà vu experiences tend to decrease with age in the non-clinical population.
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Affiliation(s)
- Courtney B A Aitken
- School of Psychology & Neuroscience, University of St Andrews, United Kingdom.
| | - Ines Jentzsch
- School of Psychology & Neuroscience, University of St Andrews, United Kingdom
| | - Akira R O'Connor
- School of Psychology & Neuroscience, University of St Andrews, United Kingdom
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34
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Shing YL, Brod G, Greve A. Prediction error and memory across the lifespan. Neurosci Biobehav Rev 2023; 155:105462. [PMID: 37951515 DOI: 10.1016/j.neubiorev.2023.105462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/27/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
The influence of Prediction Errors (PEs) on episodic memory has generated growing empirical and theoretical interest. This review explores how the relationship between PE and memory may evolve throughout lifespan. Drawing upon the predictive processing framework and the Predictive, Interactive Multiple Memory System (PIMMS) model in particular, the paper highlights the hierarchical organization of memory systems and the interaction between top-down predictions and bottom-up sensory input, proposing that PEs promote synaptic change and improve encoding and consolidation processes. We discuss the neuroscientific mechanisms underlying PE-driven memory enhancement, focusing on the involvement of the hippocampus, the entorhinal cortex-hippocampus pathway, and the noradrenergic sympathetic system. Recognizing the divergent trajectories of episodic and semantic memory across the lifespan is crucial when examining the effects of PEs on memory. This review underscores the heterogeneity of memory processes and neurocognitive mechanisms underlying PE-driven memory enhancement across age. Future research is suggested to directly compare neural networks involved in learning from PEs across different age groups and to contribute to a deeper understanding of PE-driven learning across age.
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Affiliation(s)
- Yee Lee Shing
- Department of Psychology, Goethe University Frankfurt, Germany; IDeA-Center for Individual Development and Adaptive Education of Children at Risk, Frankfurt am Main, Germany.
| | - Garvin Brod
- Department of Psychology, Goethe University Frankfurt, Germany; IDeA-Center for Individual Development and Adaptive Education of Children at Risk, Frankfurt am Main, Germany; Department of Education and Human Development, DIPF, Leibniz Institute for Research and Information in Education, Germany
| | - Andrea Greve
- MRC Cognition and Brain Sciences Unit, University of Cambridge, United Kingdom
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35
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Gönner L, Baeuchl C, Glöckner F, Riedel P, Smolka MN, Li SC. Levodopa suppresses grid-like activity and impairs spatial learning in novel environments in healthy young adults. Cereb Cortex 2023; 33:11247-11256. [PMID: 37782941 PMCID: PMC10690865 DOI: 10.1093/cercor/bhad361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 10/04/2023] Open
Abstract
Accumulated evidence from animal studies suggests a role for the neuromodulator dopamine in memory processes, particularly under conditions of novelty or reward. Our understanding of how dopaminergic modulation impacts spatial representations and spatial memory in humans remains limited. Recent evidence suggests age-specific regulation effects of dopamine pharmacology on activity in the medial temporal lobe, a key region for spatial memory. To which degree this modulation affects spatially patterned medial temporal representations remains unclear. We reanalyzed recent data from a pharmacological dopamine challenge during functional brain imaging combined with a virtual object-location memory paradigm to assess the effect of Levodopa, a dopamine precursor, on grid-like activity in the entorhinal cortex. We found that Levodopa impaired grid cell-like representations in a sample of young adults (n = 55, age = 26-35 years) in a novel environment, accompanied by reduced spatial memory performance. We observed no such impairment when Levodopa was delivered to participants who had prior experience with the task. These results are consistent with a role of dopamine in modulating the encoding of novel spatial experiences. Our results suggest that dopamine signaling may play a larger role in shaping ongoing spatial representations than previously thought.
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Affiliation(s)
- Lorenz Gönner
- Faculty of Psychology, Chair of Lifespan Developmental Neuroscience, TU Dresden, 01062 Dresden, Germany
- Department of Psychiatry, TU Dresden, 01307 Dresden, Germany
| | - Christian Baeuchl
- Faculty of Psychology, Chair of Lifespan Developmental Neuroscience, TU Dresden, 01062 Dresden, Germany
- Department of Psychiatry, TU Dresden, 01307 Dresden, Germany
| | - Franka Glöckner
- Faculty of Psychology, Chair of Lifespan Developmental Neuroscience, TU Dresden, 01062 Dresden, Germany
| | - Philipp Riedel
- Department of Psychiatry, TU Dresden, 01307 Dresden, Germany
| | | | - Shu-Chen Li
- Faculty of Psychology, Chair of Lifespan Developmental Neuroscience, TU Dresden, 01062 Dresden, Germany
- Centre for Tactile Internet With Human-in-the-Loop, TU Dresden, 01062 Dresden, Germany
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36
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Tse D, Privitera L, Norton AC, Gobbo F, Spooner P, Takeuchi T, Martin SJ, Morris RGM. Cell-type-specific optogenetic stimulation of the locus coeruleus induces slow-onset potentiation and enhances everyday memory in rats. Proc Natl Acad Sci U S A 2023; 120:e2307275120. [PMID: 37931094 PMCID: PMC10655220 DOI: 10.1073/pnas.2307275120] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 09/12/2023] [Indexed: 11/08/2023] Open
Abstract
Memory formation is typically divided into phases associated with encoding, storage, consolidation, and retrieval. The neural determinants of these phases are thought to differ. This study first investigated the impact of the experience of novelty in rats incurred at a different time, before or after, the precise moment of memory encoding. Memory retention was enhanced. Optogenetic activation of the locus coeruleus mimicked this enhancement induced by novelty, both when given before and after the moment of encoding. Optogenetic activation of the locus coeruleus also induced a slow-onset potentiation of field potentials in area CA1 of the hippocampus evoked by CA3 stimulation. Despite the locus coeruleus being considered a primarily noradrenergic area, both effects of such stimulation were blocked by the dopamine D1/D5 receptor antagonist SCH 23390. These findings substantiate and enrich the evidence implicating the locus coeruleus in cellular aspects of memory consolidation in hippocampus.
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Affiliation(s)
- Dorothy Tse
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, EdinburghEH8 9JZ, United Kingdom
- Department of Psychology, Edge Hill University, OmskirkL39 4QP, United Kingdom
| | - Lucia Privitera
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, EdinburghEH8 9JZ, United Kingdom
- School of Systems Medicine, University of Dundee, DundeeDD1 4HN, United Kingdom
- Barts and the London School of Medicine, Institute of Health Sciences Education, Queen Mary University of London Malta Campus, VictoriaVCT 2570, Malta
| | - Anna C. Norton
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, EdinburghEH8 9JZ, United Kingdom
| | - Francesco Gobbo
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, EdinburghEH8 9JZ, United Kingdom
| | - Patrick Spooner
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, EdinburghEH8 9JZ, United Kingdom
| | - Tomonori Takeuchi
- Danish Research Institute of Translational Neuroscience, Nordic-European Molecular Biology Laboratory Partnership for Molecular Medicine, Aarhus University, Aarhus8000, Denmark
- Center for Proteins in Memory, Danish National Research Foundation, Department of Biomedicine, Aarhus University, Aarhus8000, Denmark
| | - Stephen J. Martin
- School of Systems Medicine, University of Dundee, DundeeDD1 4HN, United Kingdom
| | - Richard G. M. Morris
- Centre for Discovery Brain Sciences, Edinburgh Neuroscience, University of Edinburgh, EdinburghEH8 9JZ, United Kingdom
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De Cesarei A, D'Ascenzo S, Nicoletti R, Codispoti M. Novelty and learning in cognitive control: evidence from the Simon task. PSYCHOLOGICAL RESEARCH 2023; 87:2390-2406. [PMID: 37000249 PMCID: PMC10497436 DOI: 10.1007/s00426-023-01813-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 03/08/2023] [Indexed: 04/01/2023]
Abstract
While information that is associated with inappropriate responses can interfere with an ongoing task and be detrimental to performance, cognitive control mechanisms and specific contextual conditions can alleviate interference from unwanted information. In the spatial correspondence (Simon) task, interference has been consistently shown to be reduced by spatial non-correspondence in the previous trial (i.e., correspondence sequence effect, CSE); however the mechanisms supporting this sequential effect are not well understood. Here we investigated the role of novelty and trial-to-trial changes in stimulus and response features in a Simon task, observing similar modulation of CSE for novel and non-novel stimulus changes. However, changing the response modality from trial to trial dampened CSE, and this dampening was more pronounced when the probability of switch trials was higher, suggesting a role for long-term learning. The results are consistent with recent accounts, which indicate that spatial interference can be prevented by cognitive control mechanisms triggered by learned bindings.
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Affiliation(s)
- Andrea De Cesarei
- Department of Psychology, Alma Mater Studiorum University of Bologna, Viale Berti Pichat 5, 40127, Bologna, Italy.
| | - Stefania D'Ascenzo
- Department of Philosophy and Communication Studies, University of Bologna, Bologna, Italy
| | - Roberto Nicoletti
- Department of Philosophy and Communication Studies, University of Bologna, Bologna, Italy
| | - Maurizio Codispoti
- Department of Psychology, Alma Mater Studiorum University of Bologna, Viale Berti Pichat 5, 40127, Bologna, Italy
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38
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Song Q, Tan Y. Knowledge mapping of the relationship between norepinephrine and memory: a bibliometric analysis. Front Endocrinol (Lausanne) 2023; 14:1242643. [PMID: 37955010 PMCID: PMC10634421 DOI: 10.3389/fendo.2023.1242643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/13/2023] [Indexed: 11/14/2023] Open
Abstract
Introduction Memory is a fundamental cognitive function for successful interactions with a complex environment. Norepinephrine (NE) is an essential component of catecholamine induced by emotional arousal, and numerous studies have demonstrated that NE is a key regulator in memory enhancement. We therefore conducted a bibliometric analysis to represent the knowledge pattern of the literature on the theme of NE-memory relationship. Methods The WOSCC database was selected to extract literature published during 2003-2022. The collected data of annual production, global cooperation, research structure and hotspots were analyzed and visualized. Results Our results showed that research on the links between NE and memory displayed a considerable development trend over the last two decades. The USA had a leading position in terms of scientific outputs and collaborations. Meanwhile, University of California Irvine contributed the most publications. Benno Roozendaal and James McGaugh were the most prolific authors in this field, and Neurobiology of Learning and Memory had the highest number of publications on this topic. The research emphasis has evolved from memory-related diseases and brain regions to neural mechanisms for different types of memory at neural circuit levels. Conclusion Our bibliometric analysis systematically analyzed the literature on the links between NE and memory from a bibliometric perspective. The demonstrated results of the knowledge mapping would provide valuable insights into the global research landscape.
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Affiliation(s)
- Qi Song
- Department of Pharmacy, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
| | - Yaqian Tan
- Department of Pharmacy, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
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Fleury S, Kolaric R, Espera J, Ha Q, Tomaio J, Gether U, Sørensen AT, Mingote S. Role of Dopamine Neurons in Familiarity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.25.564006. [PMID: 37961265 PMCID: PMC10634822 DOI: 10.1101/2023.10.25.564006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Dopamine neurons signal the salience of environmental stimuli, influencing learning and motivation. However, research has not yet identified whether dopamine neurons also modulate the salience of memory content. Dopamine neuron activity in the ventral tegmental area (VTA) increases in response to novel objects and diminishes as objects become familiar through repeated presentations. We proposed that the declined rate of dopamine neuron activity during familiarization affects the salience of a familiar object's memory. This, in turn, influences the degree to which an animal distinguishes between familiar and novel objects in a subsequent novel object recognition (NOR) test. As such, a single familiarization session may not sufficiently reduce dopamine activity, allowing the memory of a familiar object to maintain its salience and potentially attenuating NOR. In contrast, multiple familiarization sessions could lead to more pronounced dopamine activity suppression, strengthening NOR. Our data in mice reveals that, compared to a single session, multiple sessions result in decreased VTA dopamine neuron activation, as indicated by c-Fos measurements, and enhanced novelty discrimination. Critically, when VTA dopamine neurons are chemogenetically inhibited during a single familiarization session, NOR improves, mirroring the effects of multiple familiarization sessions. In summary, our findings highlight the pivotal function of dopamine neurons in familiarity and suggest a role in modulating the salience of memory content.
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Affiliation(s)
- Sixtine Fleury
- The Advanced Science Research Center, City University of New York, New York, NY 10031, USA
| | - Rhonda Kolaric
- The Advanced Science Research Center, City University of New York, New York, NY 10031, USA
| | - Justin Espera
- The Advanced Science Research Center, City University of New York, New York, NY 10031, USA
| | - Quan Ha
- The Advanced Science Research Center, City University of New York, New York, NY 10031, USA
| | - Jacquelyn Tomaio
- The Advanced Science Research Center, City University of New York, New York, NY 10031, USA
| | - Ulrik Gether
- Molecular Neuropharmacology and Genetics Laboratory, Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Andreas Toft Sørensen
- Molecular Neuropharmacology and Genetics Laboratory, Department of Neuroscience, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Susana Mingote
- The Advanced Science Research Center, City University of New York, New York, NY 10031, USA
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Ito S, Piet A, Bennett C, Durand S, Belski H, Garrett M, Olsen SR, Arkhipov A. Coordinated changes in a cortical circuit sculpt effects of novelty on neural dynamics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.21.563440. [PMID: 37961331 PMCID: PMC10634721 DOI: 10.1101/2023.10.21.563440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Recent studies have found dramatic cell-type specific responses to stimulus novelty, highlighting the importance of analyzing the cortical circuitry at the cell-type specific level of granularity to understand brain function. Although initial work classified and characterized activity for each cell type, the specific alterations in cortical circuitry-particularly when multiple novelty effects interact-remain unclear. To address this gap, we employed a large-scale public dataset of electrophysiological recordings in the visual cortex of awake, behaving mice using Neuropixels probes and designed population network models to investigate the observed changes in neural dynamics in response to a combination of distinct forms of novelty. The model parameters were rigorously constrained by publicly available structural datasets, including multi-patch synaptic physiology and electron microscopy data. Our systematic optimization approach identified tens of thousands of model parameter sets that replicate the observed neural activity. Analysis of these solutions revealed generally weaker connections under novel stimuli, as well as a shift in the balance e between SST and VIP populations. Along with this, PV and SST populations experienced overall more excitatory influences compared to excitatory and VIP populations. Our results also highlight the role of VIP neurons in multiple aspects of visual stimulus processing and altering gain and saturation dynamics under novel conditions. In sum, our findings provide a systematic characterization of how the cortical circuit adapts to stimulus novelty by combining multiple rich public datasets.
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Ye R, Hezemans FH, O'Callaghan C, Tsvetanov KA, Rua C, Jones PS, Holland N, Malpetti M, Murley AG, Barker RA, Williams-Gray CH, Robbins TW, Passamonti L, Rowe JB. Locus Coeruleus Integrity Is Linked to Response Inhibition Deficits in Parkinson's Disease and Progressive Supranuclear Palsy. J Neurosci 2023; 43:7028-7040. [PMID: 37669861 PMCID: PMC10586538 DOI: 10.1523/jneurosci.0289-22.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 09/07/2023] Open
Abstract
Parkinson's disease (PD) and progressive supranuclear palsy (PSP) both impair response inhibition, exacerbating impulsivity. Inhibitory control deficits vary across individuals and are linked with worse prognosis, and lack improvement on dopaminergic therapy. Motor and cognitive control are associated with noradrenergic innervation of the cortex, arising from the locus coeruleus (LC) noradrenergic system. Here we test the hypothesis that structural variation of the LC explains response inhibition deficits in PSP and PD. Twenty-four people with idiopathic PD, 14 with PSP-Richardson's syndrome, and 24 age- and sex-matched controls undertook a stop-signal task and ultrahigh field 7T magnetization-transfer-weighted imaging of the LC. Parameters of "race models" of go- versus stop-decisions were estimated using hierarchical Bayesian methods to quantify the cognitive processes of response inhibition. We tested the multivariate relationship between LC integrity and model parameters using partial least squares. Both disorders impaired response inhibition at the group level. PSP caused a distinct pattern of abnormalities in inhibitory control with a paradoxically reduced threshold for go responses, but longer nondecision times, and more lapses of attention. The variation in response inhibition correlated with the variability of LC integrity across participants in both clinical groups. Structural imaging of the LC, coupled with behavioral modeling in parkinsonian disorders, confirms that LC integrity is associated with response inhibition and LC degeneration contributes to neurobehavioral changes. The noradrenergic system is therefore a promising target to treat impulsivity in these conditions. The optimization of noradrenergic treatment is likely to benefit from stratification according to LC integrity.SIGNIFICANCE STATEMENT Response inhibition deficits contribute to clinical symptoms and poor outcomes in people with Parkinson's disease and progressive supranuclear palsy. We used cognitive modeling of performance of a response inhibition task to identify disease-specific mechanisms of abnormal inhibitory control. Response inhibition in both patient groups was associated with the integrity of the noradrenergic locus coeruleus, which we measured in vivo using ultra-high field MRI. We propose that the imaging biomarker of locus coeruleus integrity provides a trans-diagnostic tool to explain individual differences in response inhibition ability beyond the classic nosological borders and diagnostic criteria. Our data suggest a potential new stratified treatment approach for Parkinson's disease and progressive supranuclear palsy.
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Affiliation(s)
- Rong Ye
- Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, China
- School of Mental Health and Psychological Sciences, Anhui Medical University, Hefei, Anhui, 230032, China
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - Frank H Hezemans
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 7EF, United Kingdom
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 GD Nijmegen, The Netherlands
| | - Claire O'Callaghan
- Department of Psychiatry, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
- Brain and Mind Centre and School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Sydney 2050, New South Wales, Australia
| | - Kamen A Tsvetanov
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 7EF, United Kingdom
- Department of Psychology, University of Cambridge, Cambridge, CB2 3EA, United Kingdom
| | - Catarina Rua
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - P Simon Jones
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - Negin Holland
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - Maura Malpetti
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - Alexander G Murley
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - Roger A Barker
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
- Wellcome-MRC Stem Cell Institute, University of Cambridge, Cambridge, CB2 0AW, United Kingdom
| | - Caroline H Williams-Gray
- John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
| | - Trevor W Robbins
- Department of Psychology, University of Cambridge, Cambridge, CB2 3EA, United Kingdom
- Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, CB2 3EA, United Kingdom
| | - Luca Passamonti
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
- Institute of Molecular Bioimaging and Physiology, National Research Council, 88100, Catanzaro, Italy
| | - James B Rowe
- Department of Clinical Neurosciences, Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, CB2 0SZ, United Kingdom
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 7EF, United Kingdom
- Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, CB2 3EA, United Kingdom
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Berndt M, Trusel M, Roberts TF, Pfeiffer BE, Volk LJ. Bidirectional synaptic changes in deep and superficial hippocampal neurons following in vivo activity. Neuron 2023; 111:2984-2994.e4. [PMID: 37689058 PMCID: PMC10958998 DOI: 10.1016/j.neuron.2023.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 07/06/2023] [Accepted: 08/15/2023] [Indexed: 09/11/2023]
Abstract
Neuronal activity during experience is thought to induce plastic changes within the hippocampal network that underlie memory formation, although the extent and details of such changes in vivo remain unclear. Here, we employed a temporally precise marker of neuronal activity, CaMPARI2, to label active CA1 hippocampal neurons in vivo, followed by immediate acute slice preparation and electrophysiological quantification of synaptic properties. Recently active neurons in the superficial sublayer of stratum pyramidale displayed larger post-synaptic responses at excitatory synapses from area CA3, with no change in pre-synaptic release probability. In contrast, in vivo activity correlated with weaker pre- and post-synaptic excitatory weights onto pyramidal cells in the deep sublayer. In vivo activity of deep and superficial neurons within sharp-wave/ripples was bidirectionally changed across experience, consistent with the observed changes in synaptic weights. These findings reveal novel, fundamental mechanisms through which the hippocampal network is modified by experience to store information.
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Affiliation(s)
- Marcus Berndt
- UT Southwestern Medical Center Neuroscience Graduate Program, Dallas, TX 75390, USA; UT Southwestern Medical Center Department of Neuroscience, Dallas, TX 75390, USA
| | - Massimo Trusel
- UT Southwestern Medical Center Department of Neuroscience, Dallas, TX 75390, USA
| | - Todd F Roberts
- UT Southwestern Medical Center Neuroscience Graduate Program, Dallas, TX 75390, USA; UT Southwestern Medical Center Department of Neuroscience, Dallas, TX 75390, USA; Peter O'Donnell Brain Institute, Dallas, TX 75390, USA
| | - Brad E Pfeiffer
- UT Southwestern Medical Center Neuroscience Graduate Program, Dallas, TX 75390, USA; UT Southwestern Medical Center Department of Neuroscience, Dallas, TX 75390, USA; Peter O'Donnell Brain Institute, Dallas, TX 75390, USA.
| | - Lenora J Volk
- UT Southwestern Medical Center Neuroscience Graduate Program, Dallas, TX 75390, USA; UT Southwestern Medical Center Department of Neuroscience, Dallas, TX 75390, USA; UT Southwestern Medical Center Department of Psychiatry, Dallas, TX 75390, USA; Peter O'Donnell Brain Institute, Dallas, TX 75390, USA.
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43
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Bein O, Gasser C, Amer T, Maril A, Davachi L. Predictions transform memories: How expected versus unexpected events are integrated or separated in memory. Neurosci Biobehav Rev 2023; 153:105368. [PMID: 37619645 PMCID: PMC10591973 DOI: 10.1016/j.neubiorev.2023.105368] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/13/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
Our brains constantly generate predictions about the environment based on prior knowledge. Many of the events we experience are consistent with these predictions, while others might be inconsistent with prior knowledge and thus violate our predictions. To guide future behavior, the memory system must be able to strengthen, transform, or add to existing knowledge based on the accuracy of our predictions. We synthesize recent evidence suggesting that when an event is consistent with our predictions, it leads to neural integration between related memories, which is associated with enhanced associative memory, as well as memory biases. Prediction errors, in turn, can promote both neural integration and separation, and lead to multiple mnemonic outcomes. We review these findings and how they interact with factors such as memory reactivation, prediction error strength, and task goals, to offer insight into what determines memory for events that violate our predictions. In doing so, this review brings together recent neural and behavioral research to advance our understanding of how predictions shape memory, and why.
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Affiliation(s)
- Oded Bein
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ, United States.
| | - Camille Gasser
- Department of Psychology, Columbia University, New York, NY, United States.
| | - Tarek Amer
- Department of Psychology, University of Victoria, Victoria, Canada
| | - Anat Maril
- Department of Psychology, The Hebrew University of Jerusalem, Jerusalem, Israel; Department of Cognitive Science, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Lila Davachi
- Center for Clinical Research, The Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
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44
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Dahl MJ, Kulesza A, Werkle-Bergner M, Mather M. Declining locus coeruleus-dopaminergic and noradrenergic modulation of long-term memory in aging and Alzheimer's disease. Neurosci Biobehav Rev 2023; 153:105358. [PMID: 37597700 PMCID: PMC10591841 DOI: 10.1016/j.neubiorev.2023.105358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 08/05/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023]
Abstract
Memory is essential in defining our identity by guiding behavior based on past experiences. However, aging leads to declining memory, disrupting older adult's lives. Memories are encoded through experience-dependent modifications of synaptic strength, which are regulated by the catecholamines dopamine and noradrenaline. While cognitive aging research demonstrates how dopaminergic neuromodulation from the substantia nigra-ventral tegmental area regulates hippocampal synaptic plasticity and memory, recent findings indicate that the noradrenergic locus coeruleus sends denser inputs to the hippocampus. The locus coeruleus produces dopamine as biosynthetic precursor of noradrenaline, and releases both to modulate hippocampal plasticity and memory. Crucially, the locus coeruleus is also the first site to accumulate Alzheimer's-related abnormal tau and severely degenerates with disease development. New in-vivo assessments of locus coeruleus integrity reveal associations with Alzheimer's markers and late-life memory impairments, which likely stem from impaired dopaminergic and noradrenergic neurotransmission. Bridging research across species, the reviewed findings suggest that degeneration of the locus coeruleus results in deficient dopaminergic and noradrenergic modulation of hippocampal plasticity and thus memory decline.
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Affiliation(s)
- Martin J Dahl
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195 Berlin, Germany; Leonard Davis School of Gerontology, University of Southern California, 90089 Los Angeles, CA, USA.
| | - Agnieszka Kulesza
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195 Berlin, Germany
| | - Markus Werkle-Bergner
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195 Berlin, Germany
| | - Mara Mather
- Leonard Davis School of Gerontology, University of Southern California, 90089 Los Angeles, CA, USA; Department of Psychology, University of Southern California, Los Angeles, California, USA; Department of Biomedical Engineering, University of Southern California, Los Angeles, California, USA
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45
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Højgaard K, Szöllősi B, Henningsen K, Minami N, Nakanishi N, Kaadt E, Tamura M, Morris RGM, Takeuchi T, Elfving B. Novelty-induced memory consolidation is accompanied by increased Agap3 transcription: a cross-species study. Mol Brain 2023; 16:69. [PMID: 37749596 PMCID: PMC10521532 DOI: 10.1186/s13041-023-01056-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 09/18/2023] [Indexed: 09/27/2023] Open
Abstract
Novelty-induced memory consolidation is a well-established phenomenon that depends on the activation of a locus coeruleus-hippocampal circuit. It is associated with the expression of activity-dependent genes that may mediate initial or cellular memory consolidation. Several genes have been identified to date, however, to fully understand the mechanisms of memory consolidation, additional candidates must be identified. In this cross-species study, we used a contextual novelty-exploration paradigm to identify changes in gene expression in the dorsal hippocampus of both mice and rats. We found that changes in gene expression following contextual novelty varied between the two species, with 9 genes being upregulated in mice and 3 genes in rats. Comparison across species revealed that ArfGAP with a GTPase domain, an ankyrin repeat and PH domain 3 (Agap3) was the only gene being upregulated in both, suggesting a potentially conserved role for Agap3. AGAP3 is known to regulate α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type glutamate receptor trafficking in the synapse, which suggests that increased transcription of Agap3 may be involved in maintaining functional plasticity. While we identified several genes affected by contextual novelty exploration, we were unable to fully reverse these changes using SCH 23390, a dopamine D1/D5 receptor antagonist. Further research on the role of AGAP3 in novelty-induced memory consolidation could lead to better understanding of this process and guide future research.
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Affiliation(s)
- Kristoffer Højgaard
- Translational Neuropsychiatry Unit, Department of Clinical medicine, Aarhus University, Aarhus N, DK8200, Denmark
- Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic-EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus C, DK8000, Denmark
| | - Bianka Szöllősi
- Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic-EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus C, DK8000, Denmark
| | - Kim Henningsen
- Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic-EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus C, DK8000, Denmark
| | - Natsumi Minami
- Neuroscience Research Unit, Mitsubishi Tanabe Pharma Corporation, Kanagawa, 227-0033, Japan
| | - Nobuhiro Nakanishi
- Data Science Department, Mitsubishi Tanabe Pharma Corporation, Kanagawa, 227-0033, Japan
| | - Erik Kaadt
- Translational Neuropsychiatry Unit, Department of Clinical medicine, Aarhus University, Aarhus N, DK8200, Denmark
| | - Makoto Tamura
- Neuroscience Research Unit, Mitsubishi Tanabe Pharma Corporation, Kanagawa, 227-0033, Japan
- NeuroDiscovery Lab, Mitsubishi Tanabe Pharma Holdings America Inc, Cambridge, MA, 02139, USA
| | - Richard G M Morris
- Laboratory for Cognitive Neuroscience, Edinburgh Neuroscience, The University of Edinburgh, Edinburgh, EH8 9JZ, UK
| | - Tomonori Takeuchi
- Danish Research Institute of Translational Neuroscience - DANDRITE, Nordic-EMBL Partnership for Molecular Medicine, Aarhus University, Aarhus C, DK8000, Denmark.
- Center for Proteins in Memory - PROMEMO, Department of Biomedicine, Danish National Research Foundation, Aarhus University, Aarhus C, DK8000, Denmark.
- Gftd DeSci, Gftd DAO, Tokyo, 162-0044, Japan.
| | - Betina Elfving
- Translational Neuropsychiatry Unit, Department of Clinical medicine, Aarhus University, Aarhus N, DK8200, Denmark.
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Maslov GO, Zabegalov KN, Demin KA, Kolesnikova TO, Kositsyn YM, de Abreu MS, Petersen EV, Kalueff AV. Towards experimental models of delirium utilizing zebrafish. Behav Brain Res 2023; 453:114607. [PMID: 37524203 DOI: 10.1016/j.bbr.2023.114607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/02/2023]
Abstract
Delirium is an acute neuropsychiatric condition characterized by impaired behavior and cognition. Although the syndrome has been known for millennia, its CNS mechanisms and risk factors remain poorly understood. Experimental animal models, especially rodent-based, are commonly used to probe various pathogenetic aspects of delirium. Complementing rodents, the zebrafish (Danio rerio) emerges as a promising novel model organism to study delirium. Zebrafish demonstrate high genetic and physiological homology to mammals, easy maintenance, robust behaviors in various sensitive behavioral tests, and the potential to screen for pharmacological agents relevant to delirium. Here, we critically discuss recent developments in the field, and emphasize the developing utility of zebrafish models for translational studies of delirium and deliriant drugs. Overall, the zebrafish represents a valuable and promising aquatic model species whose use may help understand delirium etiology, as well as develop novel therapies for this severely debilitating disorder.
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Affiliation(s)
- Gleb O Maslov
- Neurobiology Program, Sirius University of Science and Technology, Sochi, Russia; Ural Federal University, Ekaterinburg, Russia
| | | | - Konstantin A Demin
- Institute of Experimental Medicine, Almazov National Medical Research Centre, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Tatiana O Kolesnikova
- Neurobiology Program, Sirius University of Science and Technology, Sochi, Russia; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Yuriy M Kositsyn
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Murilo S de Abreu
- Laboratory of Cell and Molecular Biology and Neurobiology, Moscow Institute of Physics and Technology, Moscow, Russia.
| | - Elena V Petersen
- Laboratory of Cell and Molecular Biology and Neurobiology, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Allan V Kalueff
- Neurobiology Program, Sirius University of Science and Technology, Sochi, Russia; Institute of Experimental Medicine, Almazov National Medical Research Centre, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Novosibirsk State University, Novosibirsk, Russia; Laboratory of Preclinical Bioscreening, Granov Russian Research Center of Radiology and Surgical Technologies, Ministry of Healthcare of Russian Federation, Pesochny, Russia; Ural Federal University, Ekaterinburg, Russia.
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Rashidi SK, Kalirad A, Rafie S, Behzad E, Dezfouli MA. The role of microRNAs in neurobiology and pathophysiology of the hippocampus. Front Mol Neurosci 2023; 16:1226413. [PMID: 37727513 PMCID: PMC10506409 DOI: 10.3389/fnmol.2023.1226413] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 08/11/2023] [Indexed: 09/21/2023] Open
Abstract
MicroRNAs (miRNAs) are short non-coding and well-conserved RNAs that are linked to many aspects of development and disorders. MicroRNAs control the expression of genes related to different biological processes and play a prominent role in the harmonious expression of many genes. During neural development of the central nervous system, miRNAs are regulated in time and space. In the mature brain, the dynamic expression of miRNAs continues, highlighting their functional importance in neurons. The hippocampus, as one of the crucial brain structures, is a key component of major functional connections in brain. Gene expression abnormalities in the hippocampus lead to disturbance in neurogenesis, neural maturation and synaptic formation. These disturbances are at the root of several neurological disorders and behavioral deficits, including Alzheimer's disease, epilepsy and schizophrenia. There is strong evidence that abnormalities in miRNAs are contributed in neurodegenerative mechanisms in the hippocampus through imbalanced activity of ion channels, neuronal excitability, synaptic plasticity and neuronal apoptosis. Some miRNAs affect oxidative stress, inflammation, neural differentiation, migration and neurogenesis in the hippocampus. Furthermore, major signaling cascades in neurodegeneration, such as NF-Kβ signaling, PI3/Akt signaling and Notch pathway, are closely modulated by miRNAs. These observations, suggest that microRNAs are significant regulators in the complicated network of gene regulation in the hippocampus. In the current review, we focus on the miRNA functional role in the progression of normal development and neurogenesis of the hippocampus. We also consider how miRNAs in the hippocampus are crucial for gene expression mechanisms in pathophysiological pathways.
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Affiliation(s)
- Seyed Khalil Rashidi
- Department of Medical Biotechnology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Ata Kalirad
- Department of Integrative Evolutionary Biology, Max Planck Institute for Biology Tübingen, Tübingen, Germany
| | - Shahram Rafie
- Department of Neurology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Neuroscience Lab, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ebrahim Behzad
- Department of Neurology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Neuroscience Lab, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mitra Ansari Dezfouli
- Department of Neurology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Neuroscience Lab, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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48
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Rouhani N, Niv Y, Frank MJ, Schwabe L. Multiple routes to enhanced memory for emotionally relevant events. Trends Cogn Sci 2023; 27:867-882. [PMID: 37479601 DOI: 10.1016/j.tics.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 07/23/2023]
Abstract
Events associated with aversive or rewarding outcomes are prioritized in memory. This memory boost is commonly attributed to the elicited affective response, closely linked to noradrenergic and dopaminergic modulation of hippocampal plasticity. Herein we review and compare this 'affect' mechanism to an additional, recently discovered, 'prediction' mechanism whereby memories are strengthened by the extent to which outcomes deviate from expectations, that is, by prediction errors (PEs). The mnemonic impact of PEs is separate from the affective outcome itself and has a distinct neural signature. While both routes enhance memory, these mechanisms are linked to different - and sometimes opposing - predictions for memory integration. We discuss new findings that highlight mechanisms by which emotional events strengthen, integrate, and segment memory.
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Affiliation(s)
- Nina Rouhani
- Division of Biology and Biological Engineering and Division of Humanities and Social Sciences, California Institute of Technology, Pasadena, CA, USA
| | - Yael Niv
- Department of Psychology and Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA
| | - Michael J Frank
- Department of Cognitive, Linguistic & Psychological Sciences and Carney Institute for Brain Science, Brown University, Providence, RI, USA
| | - Lars Schwabe
- Department of Cognitive Psychology, Institute of Psychology, Universität Hamburg, Hamburg, Germany.
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Krohn F, Lancini E, Ludwig M, Leiman M, Guruprasath G, Haag L, Panczyszyn J, Düzel E, Hämmerer D, Betts M. Noradrenergic neuromodulation in ageing and disease. Neurosci Biobehav Rev 2023; 152:105311. [PMID: 37437752 DOI: 10.1016/j.neubiorev.2023.105311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 07/14/2023]
Abstract
The locus coeruleus (LC) is a small brainstem structure located in the lower pons and is the main source of noradrenaline (NA) in the brain. Via its phasic and tonic firing, it modulates cognition and autonomic functions and is involved in the brain's immune response. The extent of degeneration to the LC in healthy ageing remains unclear, however, noradrenergic dysfunction may contribute to the pathogenesis of Alzheimer's (AD) and Parkinson's disease (PD). Despite their differences in progression at later disease stages, the early involvement of the LC may lead to comparable behavioural symptoms such as preclinical sleep problems and neuropsychiatric symptoms as a result of AD and PD pathology. In this review, we draw attention to the mechanisms that underlie LC degeneration in ageing, AD and PD. We aim to motivate future research to investigate how early degeneration of the noradrenergic system may play a pivotal role in the pathogenesis of AD and PD which may also be relevant to other neurodegenerative diseases.
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Affiliation(s)
- F Krohn
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - E Lancini
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
| | - M Ludwig
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; CBBS Center for Behavioral Brain Sciences, University of Magdeburg, Magdeburg, Germany
| | - M Leiman
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - G Guruprasath
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - L Haag
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - J Panczyszyn
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - E Düzel
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neuroscience, University College London, London UK-WC1E 6BT, UK; CBBS Center for Behavioral Brain Sciences, University of Magdeburg, Magdeburg, Germany
| | - D Hämmerer
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neuroscience, University College London, London UK-WC1E 6BT, UK; CBBS Center for Behavioral Brain Sciences, University of Magdeburg, Magdeburg, Germany; Department of Psychology, University of Innsbruck, A-6020 Innsbruck, Austria
| | - M Betts
- German Center for Neurodegenerative Diseases (DZNE), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; Institute of Cognitive Neurology and Dementia Research (IKND), Otto-von-Guericke University Magdeburg, Magdeburg, Germany; CBBS Center for Behavioral Brain Sciences, University of Magdeburg, Magdeburg, Germany
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50
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Dahl MJ, Bachman SL, Dutt S, Düzel S, Bodammer NC, Lindenberger U, Kühn S, Werkle-Bergner M, Mather M. The integrity of dopaminergic and noradrenergic brain regions is associated with different aspects of late-life memory performance. NATURE AGING 2023; 3:1128-1143. [PMID: 37653256 PMCID: PMC10501910 DOI: 10.1038/s43587-023-00469-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 07/14/2023] [Indexed: 09/02/2023]
Abstract
Changes in dopaminergic neuromodulation play a key role in adult memory decline. Recent research has also implicated noradrenaline in shaping late-life memory. However, it is unclear whether these two neuromodulators have distinct roles in age-related cognitive changes. Here, combining longitudinal MRI of the dopaminergic substantia nigra-ventral tegmental area (SN-VTA) and noradrenergic locus coeruleus (LC) in younger (n = 69) and older (n = 251) adults, we found that dopaminergic and noradrenergic integrity are differentially associated with memory performance. While LC integrity was related to better episodic memory across several tasks, SN-VTA integrity was linked to working memory. Longitudinally, we found that older age was associated with more negative change in SN-VTA and LC integrity. Notably, changes in LC integrity reliably predicted future episodic memory. These differential associations of dopaminergic and noradrenergic nuclei with late-life cognitive decline have potential clinical utility, given their degeneration in several age-associated diseases.
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Affiliation(s)
- Martin J Dahl
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany.
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA.
| | - Shelby L Bachman
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Shubir Dutt
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
| | - Sandra Düzel
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Nils C Bodammer
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Ulman Lindenberger
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
- Max Planck UCL Centre for Computational Psychiatry and Ageing Research, London, UK
- Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany
| | - Simone Kühn
- Lise Meitner Group for Environmental Neuroscience, Max Planck Institute for Human Development, Berlin, Germany
- Department of Psychiatry and Psychotherapy, University Clinic Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Werkle-Bergner
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
| | - Mara Mather
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
- Department of Psychology, University of Southern California, Los Angeles, CA, USA
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
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