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Cerqueira-Nunes M, Monteiro C, Galhardo V, Cardoso-Cruz H. Orbitostriatal encoding of reward delayed gratification and impulsivity in chronic pain. Brain Res 2024; 1839:149044. [PMID: 38821332 DOI: 10.1016/j.brainres.2024.149044] [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: 01/12/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
Central robust network functional rearrangement is a characteristic of several neurological conditions, including chronic pain. Preclinical and clinical studies have shown the importance of pain-induced dysfunction in both orbitofrontal cortex (OFC) and nucleus accumbens (NAc) brain regions for the emergence of cognitive deficits. Outcome information processing recruits the orbitostriatal circuitry, a pivotal pathway regarding context-dependent reward value encoding. The current literature reveals the existence of structural and functional changes in the orbitostriatal crosstalk in chronic pain conditions, which have emerged as a possible underlying cause for reward and time discrimination impairments observed in individuals affected by such disturbances. However, more comprehensive investigations are needed to elucidate the underlying disturbances that underpin disease development. In this review article, we aim to provide a comprehensive view of the orbitostriatal mechanisms underlying time-reward dependent behaviors, and integrate previous findings on local and network malplasticity under the framework of the chronic pain sphere.
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Affiliation(s)
- Mariana Cerqueira-Nunes
- Instituto de Investigação e Inovação em Saúde (i3S) - Pain Neurobiology Group, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Faculdade de Medicina, Departamento de Biomedicina - Unidade de Biologia Experimental (FMUP), Universidade do Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal; Programa doutoral em Neurociências (PDN), Faculdade de Medicina, Universidade do Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
| | - Clara Monteiro
- Instituto de Investigação e Inovação em Saúde (i3S) - Pain Neurobiology Group, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Faculdade de Medicina, Departamento de Biomedicina - Unidade de Biologia Experimental (FMUP), Universidade do Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
| | - Vasco Galhardo
- Instituto de Investigação e Inovação em Saúde (i3S) - Pain Neurobiology Group, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Faculdade de Medicina, Departamento de Biomedicina - Unidade de Biologia Experimental (FMUP), Universidade do Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
| | - Helder Cardoso-Cruz
- Instituto de Investigação e Inovação em Saúde (i3S) - Pain Neurobiology Group, Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; Faculdade de Medicina, Departamento de Biomedicina - Unidade de Biologia Experimental (FMUP), Universidade do Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal.
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2
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Lin H, Zhou J. Hippocampal and orbitofrontal neurons contribute to complementary aspects of associative structure. Nat Commun 2024; 15:5283. [PMID: 38902232 PMCID: PMC11190210 DOI: 10.1038/s41467-024-49652-9] [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: 08/24/2023] [Accepted: 06/12/2024] [Indexed: 06/22/2024] Open
Abstract
The ability to establish associations between environmental stimuli is fundamental for higher-order brain functions like state inference and generalization. Both the hippocampus and orbitofrontal cortex (OFC) play pivotal roles in this, demonstrating complex neural activity changes after associative learning. However, how precisely they contribute to representing learned associations remains unclear. Here, we train head-restrained mice to learn four 'odor-outcome' sequence pairs composed of several task variables-the past and current odor cues, sequence structure of 'cue-outcome' arrangement, and the expected outcome; and perform calcium imaging from these mice throughout learning. Sequence-splitting signals that distinguish between paired sequences are detected in both brain regions, reflecting associative memory formation. Critically, we uncover differential contents in represented associations by examining, in each area, how these task variables affect splitting signal generalization between sequence pairs. Specifically, the hippocampal splitting signals are influenced by the combination of past and current cues that define a particular sensory experience. In contrast, the OFC splitting signals are similar between sequence pairs that share the same sequence structure and expected outcome. These findings suggest that the hippocampus and OFC uniquely and complementarily organize the acquired associative structure.
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Affiliation(s)
- Huixin Lin
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
- Chinese Institute for Brain Research, Beijing, 102206, China
| | - Jingfeng Zhou
- Chinese Institute for Brain Research, Beijing, 102206, China.
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3
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González VV, Zhang Y, Ashikyan SA, Rickard A, Yassine I, Romero-Sosa JL, Blaisdell AP, Izquierdo A. A special role for anterior cingulate cortex, but not orbitofrontal cortex or basolateral amygdala, in choices involving information. Cereb Cortex 2024; 34:bhae135. [PMID: 38610085 PMCID: PMC11014886 DOI: 10.1093/cercor/bhae135] [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: 08/09/2023] [Revised: 02/09/2024] [Accepted: 03/13/2024] [Indexed: 04/14/2024] Open
Abstract
Subjects are often willing to pay a cost for information. In a procedure that promotes paradoxical choices, animals choose between a richer option followed by a cue that is rewarded 50% of the time (No Info) vs. a leaner option followed by one of two cues that signal certain outcomes: one always rewarded (100%) and the other never rewarded, 0% (Info). Since decisions involve comparing the subjective value of options after integrating all their features, preference for information may rely on cortico-amygdalar circuitry. To test this, male and female rats were prepared with bilateral inhibitory Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) in the anterior cingulate cortex, orbitofrontal cortex, basolateral amygdala, or null virus (control). We inhibited these regions after stable preference was acquired. We found that inhibition of the anterior cingulate cortex destabilized choice preference in female rats without affecting latency to choose or response rate to cues. A logistic regression fit revealed that previous choice predicted current choice in all conditions, however previously rewarded Info trials strongly predicted preference in all conditions except in female rats following anterior cingulate cortex inhibition. The results reveal a causal, sex-dependent role for the anterior cingulate cortex in decisions involving information.
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Affiliation(s)
- Valeria V González
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
| | - Yifan Zhang
- Department of Computer Science, University of Southern California, Salvatori Computer Science Center, 941 Bloom Walk, Los Angeles, CA 90089, United States
| | - Sonya A Ashikyan
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
| | - Anne Rickard
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
| | - Ibrahim Yassine
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
| | - Juan Luis Romero-Sosa
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
| | - Aaron P Blaisdell
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
- The Brain Research Institute, University of California-Los Angeles, 695 Charles E Young Dr S, Los Angeles, CA 90095, United States
- Integrative Center for Learning and Memory, University of California-Los Angeles, 695 Charles E Young Dr S, Los Angeles, CA 90095, United States
| | - Alicia Izquierdo
- Department of Psychology, University of California-Los Angeles, 502 Portola Plaza, Los Angeles, CA 90095, United States
- The Brain Research Institute, University of California-Los Angeles, 695 Charles E Young Dr S, Los Angeles, CA 90095, United States
- Integrative Center for Learning and Memory, University of California-Los Angeles, 695 Charles E Young Dr S, Los Angeles, CA 90095, United States
- Integrative Center for Addictions, University of California-Los Angeles, 695 Charles E Young Dr S, Los Angeles, CA 90095, United States
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4
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Rolando F, Kononowicz TW, Duhamel JR, Doyère V, Wirth S. Distinct neural adaptations to time demand in the striatum and the hippocampus. Curr Biol 2024; 34:156-170.e7. [PMID: 38141617 DOI: 10.1016/j.cub.2023.11.066] [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: 04/12/2023] [Revised: 10/18/2023] [Accepted: 11/30/2023] [Indexed: 12/25/2023]
Abstract
How do neural codes adjust to track time across a range of resolutions, from milliseconds to multi-seconds, as a function of the temporal frequency at which events occur? To address this question, we studied time-modulated cells in the striatum and the hippocampus, while macaques categorized three nested intervals within the sub-second or the supra-second range (up to 1, 2, 4, or 8 s), thereby modifying the temporal resolution needed to solve the task. Time-modulated cells carried more information for intervals with explicit timing demand, than for any other interval. The striatum, particularly the caudate, supported the most accurate temporal prediction throughout all time ranges. Strikingly, its temporal readout adjusted non-linearly to the time range, suggesting that the striatal resolution shifted from a precise millisecond to a coarse multi-second range as a function of demand. This is in line with monkey's behavioral latencies, which indicated that they tracked time until 2 s but employed a coarse categorization strategy for durations beyond. By contrast, the hippocampus discriminated only the beginning from the end of intervals, regardless of the range. We propose that the hippocampus may provide an overall poor signal marking an event's beginning, whereas the striatum optimizes neural resources to process time throughout an interval adapting to the ongoing timing necessity.
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Affiliation(s)
- Felipe Rolando
- Institut des Sciences Cognitives Marc Jeannerod, CNRS, Université Lyon 1, 67 boulevard Pinel, 69500 Bron, France
| | - Tadeusz W Kononowicz
- Institut des Sciences Cognitives Marc Jeannerod, CNRS, Université Lyon 1, 67 boulevard Pinel, 69500 Bron, France; Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay (NeuroPSI), 91400 Saclay, France; Institute of Psychology, The Polish Academy of Sciences, ul. Jaracza 1, 00-378 Warsaw, Poland
| | - Jean-René Duhamel
- Institut des Sciences Cognitives Marc Jeannerod, CNRS, Université Lyon 1, 67 boulevard Pinel, 69500 Bron, France
| | - Valérie Doyère
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay (NeuroPSI), 91400 Saclay, France
| | - Sylvia Wirth
- Institut des Sciences Cognitives Marc Jeannerod, CNRS, Université Lyon 1, 67 boulevard Pinel, 69500 Bron, France.
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Deniz K, Poleksic M, Sharma A, Wendt L, Sainju R, Fattal D. Accuracy of patient-reported spell duration: A comparative study. Epilepsy Behav 2024; 150:109573. [PMID: 38070407 PMCID: PMC10843722 DOI: 10.1016/j.yebeh.2023.109573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023]
Abstract
Clinicians rely heavily on patient histories to make medical diagnoses, most of which are inherently subjective and prone to inaccuracies. The aim of this study is to compare the subjective versus objective duration of spells through a retrospective chart review of patients admitted to the epilepsy monitoring unit at our tertiary care medical center. One hundred patients were analyzed. Differences in the accuracy of subjective estimations versus objective duration were compared by age, sex, focal versus generalized, location (frontal versus non-frontal), and spell type (focal aware versus impaired awareness and epileptic versus non-epileptic). Our data show that patients are poor subjective estimators, with 73% of patients overestimating the duration of their spells. We did not find differences in estimated duration by age, sex, seizure location or spell type. A notable exception was patients with generalized convulsive seizures, who accurately reported spell duration to within 17 s. This is likely because these seizures are stereotypical, and patients/family time them. Moreover, patients with non-epileptic spells were worse estimators of their spell duration than those with epileptic spells. In addition, although the prefrontal lobe plays a role in time estimation, we did not find that patients with frontal lobe seizures were worse estimators than those with non-frontal seizures, but invasive monitoring can more precisely localize seizures within areas of the frontal lobe responsible for time estimation. Our data emphasize the importance of not relying solely on patient-reported time estimation in diagnosing and developing treatment plans and instead instructing patients to time their spells.
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Affiliation(s)
- Kaancan Deniz
- University of Iowa Hospitals and Clinics, Department of Neurology, Iowa City, IA, 52242, USA
| | - Mia Poleksic
- University of Iowa Roy J. and Lucille A. Carver College of Medicine, Iowa City, IA, 52242, USA
| | - Aditi Sharma
- University of Iowa Hospitals and Clinics, Department of Neurology, Iowa City, IA, 52242, USA; Imaging and Neuroscience Center, the University of Utah Hospital, 729 Arapeen Drive, Salt Lake City, UT 84108, USA(2)
| | - Linder Wendt
- Institute for Clinical and Translational Science, University of Iowa, Iowa City, IA 52242, USA
| | - Rup Sainju
- University of Iowa Hospitals and Clinics, Department of Neurology, Iowa City, IA, 52242, USA
| | - Deema Fattal
- University of Iowa Hospitals and Clinics, Department of Neurology and Otolaryngology, Iowa City, IA, 52242, USA; Iowa City Veterans Affairs Medical Center, Department of Neurology, Iowa City, IA, 52246, USA.
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6
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González VV, Ashikyan SA, Zhang Y, Rickard A, Yassine I, Romero-Sosa JL, Blaisdell AP, Izquierdo A. A special role for anterior cingulate cortex, but not orbitofrontal cortex or basolateral amygdala, in choices involving information. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.03.551514. [PMID: 37577596 PMCID: PMC10418268 DOI: 10.1101/2023.08.03.551514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Subjects often are willing to pay a cost for information. In a procedure that promotes paradoxical choices, animals choose between a richer option followed by a cue that is rewarded 50% of the time (No-info) vs a leaner option followed by one of two cues that signal certain outcomes: one always rewarded (100%), and the other never rewarded, 0% (Info). Since decisions involve comparing the subjective value of options after integrating all their features, preference for information may rely on cortico-amygdalar circuitry. To test this, male and female rats were prepared with bilateral inhibitory DREADDs in the anterior cingulate cortex (ACC), orbitofrontal cortex (OFC), basolateral amygdala (BLA), or null virus (control). We inhibited these regions after stable preference was acquired. We found that inhibition of ACC destabilized choice preference in female rats without affecting latency to choose or response rate to cues. A logistic regression fit revealed that the previous choice strongly predicted preference in control animals, but not in female rats following ACC inhibition. The results reveal a causal, sex-dependent role for ACC in decisions involving information.
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7
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Buonomano DV, Buzsáki G, Davachi L, Nobre AC. Time for Memories. J Neurosci 2023; 43:7565-7574. [PMID: 37940593 PMCID: PMC10634580 DOI: 10.1523/jneurosci.1430-23.2023] [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: 07/27/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 11/10/2023] Open
Abstract
The ability to store information about the past to dynamically predict and prepare for the future is among the most fundamental tasks the brain performs. To date, the problems of understanding how the brain stores and organizes information about the past (memory) and how the brain represents and processes temporal information for adaptive behavior have generally been studied as distinct cognitive functions. This Symposium explores the inherent link between memory and temporal cognition, as well as the potential shared neural mechanisms between them. We suggest that working memory and implicit timing are interconnected and may share overlapping neural mechanisms. Additionally, we explore how temporal structure is encoded in associative and episodic memory and, conversely, the influences of episodic memory on subsequent temporal anticipation and the perception of time. We suggest that neural sequences provide a general computational motif that contributes to timing and working memory, as well as the spatiotemporal coding and recall of episodes.
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Affiliation(s)
- Dean V Buonomano
- Department of Neurobiology, University of California, Los Angeles, California 90095
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095
- Integrative Center for Learning and Memory, UCLA, Los Angeles, California 90025
| | - György Buzsáki
- Neuroscience Institute and Department of Neurology, NYU Grossman School of Medicine, New York University, New York, New York 10016
- Center for Neural Science, New York University, New York, New York 10003
| | - Lila Davachi
- Department of Psychology, Columbia University, New York, New York 10027
- Center for Clinical Research, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, New York 10962
| | - Anna C Nobre
- Department of Experimental Psychology, University of Oxford, Oxford OX2 6GG, United Kingdom
- Oxford Centre for Human Brain Activity, Wellcome Centre for Integrative Neuroimaging, Department of Psychiatry, University of Oxford, Oxford OX3 7JX, United Kingdom
- Department of Psychology, Yale University, New Haven, Connecticut 06510
- Wu Tsai Center for Neurocognition and Behavior, Wu Tsai Institute, Yale University, New Haven, Connecticut 06510
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8
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Foxall GR. The neurophysiological Behavioral Perspective Model of consumer choice and its contribution to the intentional behaviorist research programme. Front Hum Neurosci 2023; 17:1190108. [PMID: 37593041 PMCID: PMC10427341 DOI: 10.3389/fnhum.2023.1190108] [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: 03/20/2023] [Accepted: 07/05/2023] [Indexed: 08/19/2023] Open
Abstract
Cognitive explanations raise epistemological problems not faced by accounts confined to observable variables. Many explanatory components of cognitive models are unobservable: beliefs, attitudes, and intentions, for instance, must be made empirically available to the researcher in the form of measures of observable behavior from which the latent variables are inferred. The explanatory variables are abstract and theoretical and rely, if they are to enter investigations and explanations, on reasoned agreement on how they can be captured by proxy variables derived from what people say and how they behave. Psychometrics must be founded upon a firm, intersubjective agreement among researchers and users of research on the relationship of behavioral measures to the intentional constructs to which they point and the latent variables they seek to operationalize. Only if these considerations are adequately addressed can we arrive at consistent interpretations of the data. This problem provides the substance of the intentional behaviorist research programme which seeks to provide a rationale for the cognitive explanation. Within this programme, two versions of the Behavioral Perspective Model (BPM), an extensional portrayal of socioeconomic behavior and a corresponding intentional approach, address the task of identifying where intentional explanation becomes necessary and the form it should take. This study explores a third version, based on neurophysiological substrates of consumer choice as a contributor to this task. The nature of "value" is closely related to the rationale for a neurophysiological model of consumer choice. The variables involved are operationally specified and measured with high intersubjective agreement. The intentional model (BPM-I), depicting consumer action in terms of mental processes such as perception, deliberation, and choice, extends the purview of the BPM to new situations and areas of explanation.
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Affiliation(s)
- Gordon R Foxall
- Cardiff Business School, Cardiff University, Cardiff, United Kingdom
- School of Business Administration, Reykjavík University, Reykjavik, Iceland
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9
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Visalli A, Begliomini C, Mioni G. The effect of emotion intensity on time perception: a study with transcranial random noise stimulation. Exp Brain Res 2023:10.1007/s00221-023-06668-9. [PMID: 37477666 PMCID: PMC10386931 DOI: 10.1007/s00221-023-06668-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 07/10/2023] [Indexed: 07/22/2023]
Abstract
Emotional facial expressions provide cues for social interactions and emotional events can distort our sense of time. The present study investigates the effect of facial emotional stimuli of anger and sadness on time perception. Moreover, to investigate the causal role of the orbitofrontal cortex (OFC) in emotional recognition, we employed transcranial random noise stimulation (tRNS) over OFC and tested the effect on participants' emotional recognition as well as on time processing. Participants performed a timing task in which they were asked to categorize as "short" or "long" temporal intervals marked by images of people expressing anger, sad or neutral emotional facial expressions. In addition, they were asked to judge if the image presented was of a person expressing anger or sadness. The visual stimuli were facial emotional stimuli indicating anger or sadness with different degrees of intensity at high (80%), medium (60%) and low (40%) intensity, along with neutral emotional face stimuli. In the emotional recognition task, results showed that participants were faster and more accurate when emotional intensity was higher. Moreover, tRNS over OFC interfered with emotion recognition, which is in line with its proposed role in emotion recognition. In the timing task, participants overestimated the duration of angry facial expressions, although neither emotional intensity not OFC stimulation significantly modulated this effect. Conversely, as the emotional intensity increased, participants exhibited a greater tendency to overestimate the duration of sad faces in the sham condition. However, this tendency disappeared with tRNS. Taken together, our results are partially consistent with previous findings showing an overestimation effect of emotionally arousing stimuli, revealing the involvement of OFC in emotional distortions of time, which needs further investigation.
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Affiliation(s)
| | - Chiara Begliomini
- Department of General Psychology, University of Padova, 35131, Padua, Italy
- Padova Neuroscience Center, Padua, Italy
| | - Giovanna Mioni
- Department of General Psychology, University of Padova, 35131, Padua, Italy.
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10
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Xiang XJ, Chen SQ, Zhang XQ, Chen CH, Zhang SY, Cai HR, Ding SL. Possible rodent equivalent of the posterior cingulate cortex (area 23) interconnects with multimodal cortical and subcortical regions. Front Neurosci 2023; 17:1194299. [PMID: 37383104 PMCID: PMC10293749 DOI: 10.3389/fnins.2023.1194299] [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: 03/26/2023] [Accepted: 05/22/2023] [Indexed: 06/30/2023] Open
Abstract
Posterior cingulate cortex (area 23, A23) in human and monkeys is a critical component of the default mode network and is involved in many diseases such as Alzheimer's disease, autism, depression, attention deficit hyperactivity disorder and schizophrenia. However, A23 has not yet identified in rodents, and this makes modeling related circuits and diseases in rodents very difficult. Using a comparative approach, molecular markers and unique connectional patterns this study has uncovered the location and extent of possible rodent equivalent (A23~) of the primate A23. A23 ~ but not adjoining areas in the rodents displays strong reciprocal connections with anteromedial thalamic nucleus. Rodent A23 ~ reciprocally connects with the medial pulvinar and claustrum as well as with anterior cingulate, granular retrosplenial, medial orbitofrontal, postrhinal, and visual and auditory association cortices. Rodent A23 ~ projects to dorsal striatum, ventral lateral geniculate nucleus, zona incerta, pretectal nucleus, superior colliculus, periaqueductal gray, and brainstem. All these findings support the versatility of A23 in the integration and modulation of multimodal sensory information underlying spatial processing, episodic memory, self-reflection, attention, value assessment and many adaptive behaviors. Additionally, this study also suggests that the rodents could be used to model monkey and human A23 in future structural, functional, pathological, and neuromodulation studies.
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Affiliation(s)
- Xiao-Jun Xiang
- Department of Psychology, School of Health Management, Guangzhou Medical University, Guangzhou, China
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Sheng-Qiang Chen
- Department of Psychology, School of Health Management, Guangzhou Medical University, Guangzhou, China
| | - Xue-Qin Zhang
- Department of Psychology, School of Health Management, Guangzhou Medical University, Guangzhou, China
| | - Chang-Hui Chen
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Shun-Yu Zhang
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Hui-Ru Cai
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Song-Lin Ding
- Department of Psychology, School of Health Management, Guangzhou Medical University, Guangzhou, China
- Allen Institute for Brain Science, Seattle, WA, United States
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11
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Forti L, Ndoj E, Mingardi J, Secchi E, Bonifacino T, Schiavon E, Carini G, La Via L, Russo I, Milanese M, Gennarelli M, Bonanno G, Popoli M, Barbon A, Musazzi L. Dopamine-Dependent Ketamine Modulation of Glutamatergic Synaptic Plasticity in the Prelimbic Cortex of Adult Rats Exposed to Acute Stress. Int J Mol Sci 2023; 24:ijms24108718. [PMID: 37240064 DOI: 10.3390/ijms24108718] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Traumatic stress is the main environmental risk factor for the development of psychiatric disorders. We have previously shown that acute footshock (FS) stress in male rats induces rapid and long-lasting functional and structural changes in the prefrontal cortex (PFC), which are partly reversed by acute subanesthetic ketamine. Here, we asked if acute FS may also induce any changes in glutamatergic synaptic plasticity in the PFC 24 h after stress exposure and whether ketamine administration 6 h after stress may have any effect. We found that the induction of long-term potentiation (LTP) in PFC slices of both control and FS animals is dependent on dopamine and that dopamine-dependent LTP is reduced by ketamine. We also found selective changes in ionotropic glutamate receptor subunit expression, phosphorylation, and localization at synaptic membranes induced by both acute stress and ketamine. Although more studies are needed to understand the effects of acute stress and ketamine on PFC glutamatergic plasticity, this first report suggests a restoring effect of acute ketamine, supporting the potential benefit of ketamine in limiting the impact of acute traumatic stress.
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Affiliation(s)
- Lia Forti
- Department of Biotechnology and Life Sciences, Center for Neuroscience Research, University of Insubria, 21052 Busto Arsizio, Italy
| | - Elona Ndoj
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Jessica Mingardi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
| | - Emanuele Secchi
- Department of Biotechnology and Life Sciences, Center for Neuroscience Research, University of Insubria, 21052 Busto Arsizio, Italy
| | - Tiziana Bonifacino
- Unit of Pharmacology and Toxicology, Department of Pharmacy, University of Genoa, 16148 Genoa, Italy
| | - Emanuele Schiavon
- Department of Biotechnology and Life Sciences, Center for Neuroscience Research, University of Insubria, 21052 Busto Arsizio, Italy
| | - Giulia Carini
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Luca La Via
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Isabella Russo
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
- Genetics Unit, IRCCS Istituto Centro S. Giovanni di Dio, Fatebenefratelli, 25125 Brescia, Italy
| | - Marco Milanese
- Unit of Pharmacology and Toxicology, Department of Pharmacy, University of Genoa, 16148 Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Massimo Gennarelli
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
- Genetics Unit, IRCCS Istituto Centro S. Giovanni di Dio, Fatebenefratelli, 25125 Brescia, Italy
| | - Giambattista Bonanno
- Unit of Pharmacology and Toxicology, Department of Pharmacy, University of Genoa, 16148 Genoa, Italy
| | - Maurizio Popoli
- Dipartimento di Scienze Farmaceutiche, Università Degli Studi di Milano, 20133 Milano, Italy
| | - Alessandro Barbon
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Laura Musazzi
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy
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Zhou S, Buonomano DV. Neural population clocks: Encoding time in dynamic patterns of neural activity. Behav Neurosci 2022; 136:374-382. [PMID: 35446093 PMCID: PMC9561006 DOI: 10.1037/bne0000515] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The ability to predict and prepare for near- and far-future events is among the most fundamental computations the brain performs. Because of the importance of time for prediction and sensorimotor processing, the brain has evolved multiple mechanisms to tell and encode time across scales ranging from microseconds to days and beyond. Converging experimental and computational data indicate that, on the scale of seconds, timing relies on diverse neural mechanisms distributed across different brain areas. Among the different encoding mechanisms on the scale of seconds, we distinguish between neural population clocks and ramping activity as distinct strategies to encode time. One instance of neural population clocks, neural sequences, represents in some ways an optimal and flexible dynamic regime for the encoding of time. Specifically, neural sequences comprise a high-dimensional representation that can be used by downstream areas to flexibly generate arbitrarily simple and complex output patterns using biologically plausible learning rules. We propose that high-level integration areas may use high-dimensional dynamics such as neural sequences to encode time, providing downstream areas information to build low-dimensional ramp-like activity that can drive movements and temporal expectation. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Affiliation(s)
- Shanglin Zhou
- Department of Neurobiology, University of California, Los Angeles, CA 90095, USA
| | - Dean V. Buonomano
- Department of Neurobiology, University of California, Los Angeles, CA 90095, USA
- Department of Psychology, University of California, Los Angeles, CA 90095, USA
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13
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Girotti M, Carreno FR, Morilak DA. Role of Orbitofrontal Cortex and Differential Effects of Acute and Chronic Stress on Motor Impulsivity Measured With 1-Choice Serial Reaction Time Test in Male Rats. Int J Neuropsychopharmacol 2022; 25:1026-1036. [PMID: 36087292 PMCID: PMC9743967 DOI: 10.1093/ijnp/pyac062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/08/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Deficits in motor impulsivity, that is, the inability to inhibit a prepotent response, are frequently observed in psychiatric conditions. Several studies suggest that stress often correlates with higher impulsivity. Among the brain areas affected by stress, the orbitofrontal cortex (OFC) is notable because of its role in impulse control. OFC subregions with unique afferent and efferent circuitry play distinct roles in impulse control, yet it is not clear what OFC subregions are engaged during motor impulsivity tasks. METHODS In this study we used a rodent test of motor impulsivity, the 1-choice serial reaction time test, to explore activation of OFC subregions either during a well-learned motor impulsivity task or in a challenge task with a longer wait time that increases premature responding. We also examined the effects of acute inescapable stress, chronic intermittent cold stress and chronic unpredictable stress on motor impulsivity. RESULTS Fos expression increased in the lateral OFC and agranular insular cortex during performance in both the mastered and challenge conditions. In the ventral OFC, Fos expression increased only during challenge, and within the medial OFC, Fos was not induced in either condition. Inescapable stress produced a transient effect on premature responses in the mastered task, whereas chronic intermittent cold stress and chronic unpredictable stress altered premature responses in both conditions in ways specific to each stressor. CONCLUSIONS These results suggest that different OFC subregions have different roles in motor impulse control, and the effects of stress vary depending on the nature and duration of the stressor.
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Affiliation(s)
- Milena Girotti
- Correspondence: Milena Girotti, PhD, Department of Pharmacology, Mail Code 7764, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA ()
| | - Flavia R Carreno
- Department of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - David A Morilak
- Department of Pharmacology and Center for Biomedical Neuroscience, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA,South Texas Veterans Health Care System, San Antonio, TX, USA
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14
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Wassum KM. Amygdala-cortical collaboration in reward learning and decision making. eLife 2022; 11:80926. [PMID: 36062909 PMCID: PMC9444241 DOI: 10.7554/elife.80926] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/22/2022] [Indexed: 12/16/2022] Open
Abstract
Adaptive reward-related decision making requires accurate prospective consideration of the specific outcome of each option and its current desirability. These mental simulations are informed by stored memories of the associative relationships that exist within an environment. In this review, I discuss recent investigations of the function of circuitry between the basolateral amygdala (BLA) and lateral (lOFC) and medial (mOFC) orbitofrontal cortex in the learning and use of associative reward memories. I draw conclusions from data collected using sophisticated behavioral approaches to diagnose the content of appetitive memory in combination with modern circuit dissection tools. I propose that, via their direct bidirectional connections, the BLA and OFC collaborate to help us encode detailed, outcome-specific, state-dependent reward memories and to use those memories to enable the predictions and inferences that support adaptive decision making. Whereas lOFC→BLA projections mediate the encoding of outcome-specific reward memories, mOFC→BLA projections regulate the ability to use these memories to inform reward pursuit decisions. BLA projections to lOFC and mOFC both contribute to using reward memories to guide decision making. The BLA→lOFC pathway mediates the ability to represent the identity of a specific predicted reward and the BLA→mOFC pathway facilitates understanding of the value of predicted events. Thus, I outline a neuronal circuit architecture for reward learning and decision making and provide new testable hypotheses as well as implications for both adaptive and maladaptive decision making.
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Affiliation(s)
- Kate M Wassum
- Department of Psychology, University of California, Los Angeles, Los Angeles, United States.,Brain Research Institute, University of California, Los Angeles, Los Angeles, United States.,Integrative Center for Learning and Memory, University of California, Los Angeles, Los Angeles, United States.,Integrative Center for Addictive Disorders, University of California, Los Angeles, Los Angeles, United States
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