1
|
Márquez LA, López Rubalcava C, Galván EJ. Postnatal hypofunction of N-methyl-D-aspartate receptors alters perforant path synaptic plasticity and filtering and impairs dentate gyrus-mediated spatial discrimination. Br J Pharmacol 2024; 181:2701-2724. [PMID: 38631821 DOI: 10.1111/bph.16375] [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: 09/04/2023] [Revised: 02/23/2024] [Accepted: 03/04/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND AND PURPOSE Transient hypofunction of the NMDA receptor represents a convergence point for the onset and further development of psychiatric disorders, including schizophrenia. Although the cumulative evidence indicates dysregulation of the hippocampal formation in schizophrenia, the integrity of the synaptic transmission and plasticity conveyed by the somatosensorial inputs to the dentate gyrus, the perforant pathway synapses, have barely been explored in this pathological condition. EXPERIMENTAL APPROACH We identified a series of synaptic alterations of the lateral and medial perforant paths in animals postnatally treated with the NMDA antagonist MK-801. This dysregulation suggests decreased cognitive performance, for which the dentate gyrus is critical. KEY RESULTS We identified alterations in the synaptic properties of the lateral and medial perforant paths to the dentate gyrus synapses in slices from MK-801-treated animals. Altered glutamate release and decreased synaptic strength precede an impairment in the induction and expression of long-term potentiation (LTP) and CB1 receptor-mediated long-term depression (LTD). Remarkably, by inhibiting the degradation of 2-arachidonoylglycerol (2-AG), an endogenous ligand of the CB1 receptor, we restored the LTD in animals treated with MK-801. Additionally, we showed for the first time, that spatial discrimination, a cognitive task that requires dentate gyrus integrity, is impaired in animals exposed to transient hypofunction of NMDA receptors. CONCLUSION AND IMPLICATIONS Dysregulation of glutamatergic transmission and synaptic plasticity from the entorhinal cortex to the dentate gyrus has been demonstrated, which may explain the cellular dysregulations underlying the altered cognitive processing in the dentate gyrus associated with schizophrenia.
Collapse
Affiliation(s)
- Luis A Márquez
- Departamento de Farmacobiología, CINVESTAV Unidad Sur, Ciudad de México, Mexico
| | | | - Emilio J Galván
- Departamento de Farmacobiología, CINVESTAV Unidad Sur, Ciudad de México, Mexico
- Centro de Investigaciones sobre el Envejecimiento, CIE-Cinvestav, Ciudad de México, Mexico
| |
Collapse
|
2
|
Márquez LA, Griego E, López Rubalcava C, Galván EJ. NMDA receptor activity during postnatal development determines intrinsic excitability and mossy fiber long-term potentiation of CA3 pyramidal cells. Hippocampus 2023. [PMID: 36938755 DOI: 10.1002/hipo.23524] [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: 12/02/2022] [Revised: 01/30/2023] [Accepted: 02/23/2023] [Indexed: 03/21/2023]
Abstract
Experimental manipulations that interfere with the functional expression of N-methyl-D-aspartate receptors (NMDARs) during prenatal neurodevelopment or critical periods of postnatal development are models that mimic behavioral and neurophysiological abnormalities of schizophrenia. Blockade of NMDARs with MK-801 during early postnatal development alters glutamate release and impairs the induction of NMDAR-dependent long-term plasticity at the CA1 area of the hippocampus. However, it remains unknown if other forms of hippocampal plasticity, such as α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR)-mediated short- and long-term potentiation, are compromised in response to neonatal treatment with MK-801. Consistent with this tenet, short- and long-term potentiation between dentate gyrus axons, the mossy fibers (MF), onto CA3 pyramidal cells (CA3 PCs) are mediated by AMPARs. By combining whole-cell patch clamp and extracellular recordings, we have demonstrated that transient blockade of NMDARs during early postnatal development induces a series of pre- and postsynaptic modifications at the MF-CA3 synapse. We found reduced glutamate release from the mossy boutons, increased paired-pulse ratio, and reduced AMPAR-mediated MF LTP levels. At the postsynaptic level, we found an altered NMDA/AMPA ratio and dysregulation of several potassium conductances that increased the excitability of CA3 PCs. In addition, MK-801-treated animals exhibited impaired spatial memory retrieval in the Barnes maze task. Our data demonstrate that transient hypofunction of NMDARs impacts NMDAR-independent forms of synaptic plasticity of the hippocampus.
Collapse
Affiliation(s)
- Luis A Márquez
- Departamento de Farmacobiología, CINVESTAV Unidad Sur, Ciudad de México, Mexico
| | - Ernesto Griego
- Departamento de Farmacobiología, CINVESTAV Unidad Sur, Ciudad de México, Mexico
| | | | - Emilio J Galván
- Departamento de Farmacobiología, CINVESTAV Unidad Sur, Ciudad de México, Mexico.,Centro de Investigaciones sobre el Envejecimiento, CIE-Cinvestav, Ciudad de México, Mexico
| |
Collapse
|
3
|
Leung LS, Ma J. Medial Septum Modulates Consciousness and Psychosis-Related Behaviors Through Hippocampal Gamma Activity. Front Neural Circuits 2022; 16:895000. [PMID: 35874429 PMCID: PMC9301478 DOI: 10.3389/fncir.2022.895000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 06/16/2022] [Indexed: 11/13/2022] Open
Abstract
Abnormally high-amplitude hippocampal gamma activity (30–100 Hz) in behaving animals is seen after a hippocampal seizure, following injection of phencyclidine (PCP) or ketamine, and transiently in a delirium stage during induction of general anesthesia. High-amplitude hippocampal gamma activity in behaving rats is associated with hyperactive behavior and impairment in sensorimotor gating and sensory gating. The medial septum is necessary for the high-amplitude gamma activity and abnormal behaviors observed following a hippocampal seizure or injection of PCP/ketamine. Glutamatergic projection of the hippocampus to the nucleus accumbens (NAC) and dopaminergic transmission in NAC is necessary for abnormal behaviors. Large hippocampal gamma waves are suggested to contribute to seizure-induced automatism following temporal lobe seizures, and the schizophrenia-like symptoms induced by PCP/ketamine. Low-amplitude gamma activity is found during general anesthesia, associated with loss of consciousness in humans and loss of righting reflex in animals. Local inactivation or lesion of the medial septum, NAC, and brain areas connected to the septohippocampal-NAC system attenuates the increase in hippocampal gamma and associated behavioral disruptions induced by hippocampal seizure or PCP/ketamine. Inactivation or lesion of the septohippocampal-NAC system decreases the dose of anesthetic necessary for gamma decrease and loss of consciousness in animals. Thus, it is proposed that the septohippocampal-NAC system serves to control consciousness and the behavioral hyperactivity and neural dysfunctions during psychosis.
Collapse
|
4
|
Revach D, Salti M. Consciousness as the Temporal Propagation of Information. Front Syst Neurosci 2022; 16:759683. [PMID: 35401129 PMCID: PMC8984189 DOI: 10.3389/fnsys.2022.759683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/14/2022] [Indexed: 11/13/2022] Open
Abstract
Our ability to understand the mind and its relation to the body is highly dependent on the way we define consciousness and the lens through which we study it. We argue that looking at conscious experience from an information-theory perspective can help obtain a unified and parsimonious account of the mind. Today's dominant models consider consciousness to be a specialized function of the brain characterized by a discrete neural event. Against this background, we consider subjective experience through information theory, presenting consciousness as the propagation of information from the past to the future. We examine through this perspective major characteristics of consciousness. We demonstrate that without any additional assumptions, temporal continuity in perception can explain the emergence of volition, subjectivity, higher order thoughts, and body boundaries. Finally, we discuss the broader implications for the mind-body question and the appeal of embodied cognition.
Collapse
Affiliation(s)
- Daniel Revach
- Department of Neuroscience, Ben-Gurion University of the Negev, Be’er Sheva, Israel
| | | |
Collapse
|
5
|
Anxiety and cognitive-related effects of Δ 9-tetrahydrocannabinol (THC) are differentially mediated through distinct GSK-3 vs. Akt-mTOR pathways in the nucleus accumbens of male rats. Psychopharmacology (Berl) 2022; 239:509-524. [PMID: 34860284 DOI: 10.1007/s00213-021-06029-w] [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: 07/12/2021] [Accepted: 11/09/2021] [Indexed: 10/19/2022]
Abstract
RATIONALE Δ9-tetrahydrocannabinol (THC) is the primary psychoactive compound in cannabis and is responsible for cannabis-related neuropsychiatric side effects, including abnormal affective processing, cognitive and sensory filtering deficits and memory impairments. A critical neural region linked to the psychotropic effects of THC is the nucleus accumbens shell (NASh), an integrative mesocorticolimbic structure that sends and receives inputs from multiple brain areas known to be dysregulated in various disorders, including schizophrenia and anxiety-related disorders. Considerable evidence demonstrates functional differences between posterior vs. anterior NASh sub-regions in the processing of affective and cognitive behaviours influenced by THC. Nevertheless, the neuroanatomical regions and local molecular pathways responsible for these psychotropic effects are not currently understood. OBJECTIVES The objectives of this study were to characterize the effects of intra-accumbens THC in the anterior vs. posterior regions of the NASh during emotional memory formation, sensorimotor gating and anxiety-related behaviours. METHODS We performed an integrative series of translational behavioural pharmacological studies examining anxiety, sensorimotor gating and fear-related associative memory formation combined with regionally specific molecular signalling analyses in male Sprague Dawley rats. RESULTS We report that THC in the posterior NASh causes distortions in emotional salience attribution, impaired sensory filtering and memory retention and heightened anxiety, through a glycogen-synthase-kinase-3 (GSK-3)-β-catenin dependent signalling pathway. In contrast, THC in the anterior NASh produces anxiolytic effects via modulation of protein kinase B (Akt) phosphorylation states. CONCLUSIONS These findings reveal critical new insights into the neuroanatomical and molecular mechanisms associated with the differential neuropsychiatric side effects of THC in dissociable nucleus accumbens sub-regions.
Collapse
|
6
|
Delavari F, Sandini C, Zöller D, Mancini V, Bortolin K, Schneider M, Van De Ville D, Eliez S. Dysmaturation Observed as Altered Hippocampal Functional Connectivity at Rest Is Associated With the Emergence of Positive Psychotic Symptoms in Patients With 22q11 Deletion Syndrome. Biol Psychiatry 2021; 90:58-68. [PMID: 33771350 DOI: 10.1016/j.biopsych.2020.12.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/03/2020] [Accepted: 12/21/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Hippocampal alterations are among the most replicated neuroimaging findings across the psychosis spectrum. Moreover, there is strong translational evidence that preserving the maturation of hippocampal networks in mice models prevents the progression of cognitive deficits. However, the developmental trajectory of hippocampal functional connectivity (HFC) and its contribution to psychosis is not well characterized in the human population. 22q11 deletion syndrome (22q11DS) offers a unique model for characterizing early neural correlates of schizophrenia. METHODS We acquired resting-state functional magnetic resonance imaging in 242 longitudinally repeated scans from 84 patients with 22q11DS (30 with moderate to severe positive psychotic symptoms) and 94 healthy control subjects in the age span of 6 to 32 years. We obtained bilateral hippocampus to whole-brain functional connectivity and employed a novel longitudinal multivariate approach by means of partial least squares correlation to evaluate the developmental trajectory of HFC across groups. RESULTS Relative to control subjects, patients with 22q11DS failed to increase HFC with frontal regions such as the dorsal part of the anterior cingulate cortex, prefrontal cortex, and supplementary motor area. Concurrently, carriers of the deletion had abnormally higher HFC with subcortical dopaminergic areas. Remarkably, this aberrant maturation of HFC was more prominent during midadolescence and was mainly driven by patients exhibiting subthreshold positive psychotic symptoms. CONCLUSIONS Our findings suggest a critical period of prefrontal cortex-hippocampal-striatal circuit dysmaturation, particularly during late adolescence, which in light of current translation evidence could be a target for short-term interventions to potentially achieve long-lasting rescue of circuit dysfunctions associated with psychosis.
Collapse
Affiliation(s)
- Farnaz Delavari
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland; Medical Image Processing Laboratory, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - Corrado Sandini
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland
| | - Daniela Zöller
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland; Medical Image Processing Laboratory, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Valentina Mancini
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland
| | - Karin Bortolin
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland; Medical Image Processing Laboratory, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Maude Schneider
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland; Department of Neuroscience, Center for Contextual Psychiatry, Research Group Psychiatry, KU Leuven, Leuven, Belgium
| | - Dimitri Van De Ville
- Department of Radiology and Medical Informatics, University of Geneva, Geneva, Switzerland; Medical Image Processing Laboratory, Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Stephan Eliez
- Developmental Imaging and Psychopathology Laboratory, University of Geneva School of Medicine, Geneva, Switzerland; Department of Genetic Medicine and Development, University of Geneva School of Medicine, Geneva, Switzerland
| |
Collapse
|
7
|
Silverstein SM, Lai A. The Phenomenology and Neurobiology of Visual Distortions and Hallucinations in Schizophrenia: An Update. Front Psychiatry 2021; 12:684720. [PMID: 34177665 PMCID: PMC8226016 DOI: 10.3389/fpsyt.2021.684720] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 05/14/2021] [Indexed: 12/15/2022] Open
Abstract
Schizophrenia is characterized by visual distortions in ~60% of cases, and visual hallucinations (VH) in ~25-50% of cases, depending on the sample. These symptoms have received relatively little attention in the literature, perhaps due to the higher rate of auditory vs. visual hallucinations in psychotic disorders, which is the reverse of what is found in other neuropsychiatric conditions. Given the clinical significance of these perceptual disturbances, our aim is to help address this gap by updating and expanding upon prior reviews. Specifically, we: (1) present findings on the nature and frequency of VH and distortions in schizophrenia; (2) review proposed syndromes of VH in neuro-ophthalmology and neuropsychiatry, and discuss the extent to which these characterize VH in schizophrenia; (3) review potential cortical mechanisms of VH in schizophrenia; (4) review retinal changes that could contribute to VH in schizophrenia; (5) discuss relationships between findings from laboratory measures of visual processing and VH in schizophrenia; and (6) integrate findings across biological and psychological levels to propose an updated model of VH mechanisms, including how their content is determined, and how they may reflect vulnerabilities in the maintenance of a sense of self. In particular, we emphasize the potential role of alterations at multiple points in the visual pathway, including the retina, the roles of multiple neurotransmitters, and the role of a combination of disinhibited default mode network activity and enhanced state-related apical/contextual drive in determining the onset and content of VH. In short, our goal is to cast a fresh light on the under-studied symptoms of VH and visual distortions in schizophrenia for the purposes of informing future work on mechanisms and the development of targeted therapeutic interventions.
Collapse
Affiliation(s)
- Steven M Silverstein
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, United States.,Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, United States.,Department of Ophthalmology, University of Rochester Medical Center, Rochester, NY, United States.,Center for Visual Science, University of Rochester Medical Center, Rochester, NY, United States
| | - Adriann Lai
- Department of Psychiatry, University of Rochester Medical Center, Rochester, NY, United States
| |
Collapse
|
8
|
Cachia A, Cury C, Brunelin J, Plaze M, Delmaire C, Oppenheim C, Medjkane F, Thomas P, Jardri R. Deviations in early hippocampus development contribute to visual hallucinations in schizophrenia. Transl Psychiatry 2020; 10:102. [PMID: 32214096 PMCID: PMC7096500 DOI: 10.1038/s41398-020-0779-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 02/17/2020] [Accepted: 02/26/2020] [Indexed: 01/06/2023] Open
Abstract
Auditory hallucinations (AHs) are certainly the most emblematic experiences in schizophrenia, but visual hallucinations (VHs) are also commonly observed in this developmental psychiatric disorder. Notably, several studies have suggested a possible relationship between the clinical variability in hallucinations' phenomenology and differences in brain development/maturation. In schizophrenia, impairments of the hippocampus, a medial temporal structure involved in mnesic and neuroplastic processes, have been repeatedly associated with hallucinations, particularly in the visual modality. However, the possible neurodevelopmental origin of hippocampal impairments in VHs has never been directly investigated. A classic marker of early atypical hippocampal development is incomplete hippocampal inversion (IHI). In this study, we compared IHI patterns in healthy volunteers, and two subgroups of carefully selected schizophrenia patients experiencing frequent hallucinations: (a) those with pure AHs and (b) those with audio-visual hallucinations (A+VH). We found that VHs were associated with a specific IHI pattern. Schizophrenia patients with A+VH exhibited flatter left hippocampi than patients with pure AHs or healthy controls. This result first confirms that the greater clinical impairment observed in A+VH patients may relate to an increased neurodevelopmental weight in this subpopulation. More importantly, these findings bring crucial hints to better specify the sensitivity period of A+VH-related IHI during early brain development.
Collapse
Affiliation(s)
- Arnaud Cachia
- Université de Paris, Institut de Psychiatrie et Neurosciences de Paris, INSERM, GHU Paris psychiatrie & neurosciences, F-75005, Paris, France. .,Université de Paris, Laboratoire de Psychologie du développement et de l'Education de l'Enfant, CNRS, F-75005, Paris, France. .,Institut Universitaire de France, Paris, France.
| | - Claire Cury
- grid.83440.3b0000000121901201Department of Medical Physics and Biomedical Engineering, University College, London, UK ,grid.410368.80000 0001 2191 9284Univ Rennes, CNRS, Inria, Inserm, IRISA UMR 6074, EMPENN — ERL U 1228, F-35000 Rennes, France
| | - Jérôme Brunelin
- grid.25697.3f0000 0001 2172 4233INSERM U 1028, CNRS UMR-5292, Lyon Neuroscience Research Center, PSYR2 Team, Université de Lyon, CH le Vinatier, Lyon, France
| | - Marion Plaze
- Université de Paris, Institut de Psychiatrie et Neurosciences de Paris, INSERM, GHU Paris psychiatrie & neurosciences, F-75005 Paris, France
| | - Christine Delmaire
- grid.410463.40000 0004 0471 8845CHU Lille, Salengro Hospital, Neuroradiology dpt, 59000 Lille, France
| | - Catherine Oppenheim
- Université de Paris, Institut de Psychiatrie et Neurosciences de Paris, INSERM, GHU Paris psychiatrie & neurosciences, F-75005 Paris, France
| | - François Medjkane
- grid.410463.40000 0004 0471 8845CHU Lille, Hôpital Fontan, Plateforme CIC - CURE, 59000 Lille, France ,Univ Lille, INSERM U-1172, CHU Lille, Lille Neuroscience & Cognition Centre (LiNC), Plasticity & SubjectivitY (PSY) team, 59000 Lille, France
| | - Pierre Thomas
- grid.410463.40000 0004 0471 8845CHU Lille, Hôpital Fontan, Plateforme CIC - CURE, 59000 Lille, France ,Univ Lille, INSERM U-1172, CHU Lille, Lille Neuroscience & Cognition Centre (LiNC), Plasticity & SubjectivitY (PSY) team, 59000 Lille, France
| | - Renaud Jardri
- grid.410463.40000 0004 0471 8845CHU Lille, Hôpital Fontan, Plateforme CIC - CURE, 59000 Lille, France ,Univ Lille, INSERM U-1172, CHU Lille, Lille Neuroscience & Cognition Centre (LiNC), Plasticity & SubjectivitY (PSY) team, 59000 Lille, France
| |
Collapse
|
9
|
Krajcovic B, Fajnerova I, Horacek J, Kelemen E, Kubik S, Svoboda J, Stuchlik A. Neural and neuronal discoordination in schizophrenia: From ensembles through networks to symptoms. Acta Physiol (Oxf) 2019; 226:e13282. [PMID: 31002202 DOI: 10.1111/apha.13282] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/27/2019] [Accepted: 04/12/2019] [Indexed: 12/22/2022]
Abstract
Despite the substantial knowledge accumulated by past research, the exact mechanisms of the pathogenesis of schizophrenia and causal treatments still remain unclear. Deficits of cognition and information processing in schizophrenia are today often viewed as the primary and core symptoms of this devastating disorder. These deficits likely result from disruptions in the coordination of neuronal and neural activity. The aim of this review is to bring together convergent evidence of discoordinated brain circuits in schizophrenia at multiple levels of resolution, ranging from principal cells and interneurons, neuronal ensembles and local circuits, to large-scale brain networks. We show how these aberrations could underlie deficits in cognitive control and other higher order cognitive-behavioural functions. Converging evidence from both animal models and patients with schizophrenia is presented in an effort to gain insight into common features of deficits in the brain information processing in this disorder, marked by disruption of several neurotransmitter and signalling systems and severe behavioural outcomes.
Collapse
Affiliation(s)
- Branislav Krajcovic
- Department of Neurophysiology of Memory Institute of Physiology of the Czech Academy of Sciences Prague Czech Republic
- Third Faculty of Medicine Charles University Prague Czech Republic
| | - Iveta Fajnerova
- Department of Neurophysiology of Memory Institute of Physiology of the Czech Academy of Sciences Prague Czech Republic
- Research Programme 3 - Applied Neurosciences and Brain Imaging National Institute of Mental Health Klecany Czech Republic
| | - Jiri Horacek
- Third Faculty of Medicine Charles University Prague Czech Republic
- Research Programme 3 - Applied Neurosciences and Brain Imaging National Institute of Mental Health Klecany Czech Republic
| | - Eduard Kelemen
- Research Programme 1 - Experimental Neurobiology National Institute of Mental Health Klecany Czech Republic
| | - Stepan Kubik
- Department of Neurophysiology of Memory Institute of Physiology of the Czech Academy of Sciences Prague Czech Republic
| | - Jan Svoboda
- Department of Neurophysiology of Memory Institute of Physiology of the Czech Academy of Sciences Prague Czech Republic
| | - Ales Stuchlik
- Department of Neurophysiology of Memory Institute of Physiology of the Czech Academy of Sciences Prague Czech Republic
| |
Collapse
|
10
|
Liu L, Cui LB, Xi YB, Wang XR, Liu YC, Xu ZL, Wang HN, Yin H, Qin W. Association Between Connectivity of Hippocampal Sub-Regions and Auditory Verbal Hallucinations in Schizophrenia. Front Neurosci 2019; 13:424. [PMID: 31130837 PMCID: PMC6509236 DOI: 10.3389/fnins.2019.00424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 04/12/2019] [Indexed: 01/28/2023] Open
Abstract
Background: Hippocampal dysconnectivity has been detected in schizophrenia patients with auditory verbal hallucinations (AVHs). Neuroanatomical evidence has indicated distinct sub-regions in the hippocampus, but which sub-regions within the hippocampus may emerge dysfunction in the brain network, and the relationship between connection strength and the severity of this debilitating disorder have yet to be revealed. Masked independent component analysis (mICA), i.e., ICA restricted to a defined region of interest, can provide insight into observing local functional connectivity in a particular brain region. We aim to map out the sub-regions in the hippocampus with dysconnectivity linked to AVHs in schizophrenia. Methods: In this functional magnetic resonance imaging study of schizophrenia patients with (n = 57) and without (n = 83) AVHs, and 71 healthy controls, we first examined hippocampal connectivity using mICA, and then the correlation between connection metric and clinical severity was generated. Results: As compared with patients without AVHs, mICA showed a group of hyper-connections for the left middle part, as well as another group of hypo-connections for the bilateral antero-lateral and right antero-medial parts in patients with AVHs. Connectivity was linked to the clinical symptoms scores in the sample of patients with AVHs. Conclusion: These findings demonstrate that the left middle part is more densely connected, but the bilateral antero-lateral and right antero-medial parts are more sparsely connected in schizophrenia patients with AVHs. The findings in the present study show proof of precious location in the hippocampus mediating the neural mechanism behind AVHs in schizophrenia.
Collapse
Affiliation(s)
- Lin Liu
- School of Life Sciences and Technology, Xidian University, Xi'an, China
| | - Long-Biao Cui
- Department of Clinical Psychology, School of Medical Psychology, Fourth Military Medical University, Xi'an, China
| | - Yi-Bin Xi
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xing-Rui Wang
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yu-Chen Liu
- School of Life Sciences and Technology, Xidian University, Xi'an, China
| | - Zi-Liang Xu
- School of Life Sciences and Technology, Xidian University, Xi'an, China
| | - Hua-Ning Wang
- Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Hong Yin
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Qin
- School of Life Sciences and Technology, Xidian University, Xi'an, China
| |
Collapse
|
11
|
Merikanto I, Utge S, Lahti J, Kuula L, Makkonen T, Lahti‐Pulkkinen M, Heinonen K, Räikkönen K, Andersson S, Strandberg T, Pesonen A. Genetic risk factors for schizophrenia associate with sleep spindle activity in healthy adolescents. J Sleep Res 2019; 28:e12762. [DOI: 10.1111/jsr.12762] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/11/2018] [Accepted: 07/27/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Ilona Merikanto
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
- National Institute for Health and Welfare Helsinki Finland
| | - Siddheshwar Utge
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| | - Jari Lahti
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| | - Liisa Kuula
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| | - Tommi Makkonen
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| | - Marius Lahti‐Pulkkinen
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
- National Institute for Health and Welfare Helsinki Finland
| | - Kati Heinonen
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| | - Katri Räikkönen
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| | - Sture Andersson
- Children’s Hospital, University of Helsinki and Helsinki University Hospital Helsinki Finland
| | - Timo Strandberg
- University of Helsinki and Helsinki University Hospital Helsinki Finland
- University of Oulu, Center for Life Course Health Research Oulu Finland
| | - Anu‐Katriina Pesonen
- Department of Psychology and Logopedics, Faculty of Medicine University of Helsinki Helsinki Finland
| |
Collapse
|
12
|
Leung LS, Ma J. Medial septum modulates hippocampal gamma activity and prepulse inhibition in an N-methyl-d-aspartate receptor antagonist model of schizophrenia. Schizophr Res 2018; 198:36-44. [PMID: 28801194 DOI: 10.1016/j.schres.2017.07.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 07/25/2017] [Accepted: 07/28/2017] [Indexed: 01/07/2023]
Abstract
We reviewed the participation of the septohippocampal system in an animal model of schizophrenia that was acutely induced by systemic injection of an N-methyl-d-aspartate (NMDA) receptor antagonist such as phencyclidine, MK-801 and ketamine. The NMDA receptor antagonist-induced model of schizophrenia is characterized by behavioral and electrophysiological disruptions, including a decrease in prepulse inhibition of the acoustic startle response (PPI), hyperlocomotion, decrease in gating of hippocampal auditory evoked potentials and robust increase in hippocampal gamma (30-100Hz) oscillations. Similar disruptions were also induced by a single electrographic seizure in the hippocampus. The behavioral and electrophysiological disruptions induced by an NMDA receptor antagonist can be reduced by inactivation or lesion of GABAergic neurons in the medial septum, deep brain stimulation of the medial septum or nucleus accumbens, or positive modulation of GABAB receptors. Our results suggest a close association between high-amplitude hippocampal gamma oscillations and psychosis-relevant behaviors including PPI loss, behavioral hyperactivity and loss in auditory gating. Abnormal electrophysiology suggests a disruption of somatic and apical dendritic inhibition in the hippocampus, resulting in distorted sensory integration, and impaired cognitive and memory processing. The hippocampus is suggested to be a hub in a brain network that participates in psychosis-relevant behaviors, through its direct projection to the nucleus accumbens, or through indirect connections via the entorhinal, cingulate and prefrontal cortices.
Collapse
Affiliation(s)
- L Stan Leung
- Department of Physiology and Pharmacology, The University of Western Ontario, London N6A 5C1, Canada.
| | - Jingyi Ma
- Department of Physiology and Pharmacology, The University of Western Ontario, London N6A 5C1, Canada
| |
Collapse
|
13
|
Aguilar EJ, Corripio I, García-Martí G, Grasa E, Martí-Bonmatí L, Gómez-Ansón B, Sanjuán J, Núñez-Marín F, Lorente-Rovira E, Escartí MJ, Brabban A, Turkington D. Emotional fMR auditory paradigm demonstrates normalization of limbic hyperactivity after cognitive behavior therapy for auditory hallucinations. Schizophr Res 2018; 193:304-312. [PMID: 28720416 DOI: 10.1016/j.schres.2017.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 07/08/2017] [Accepted: 07/09/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Eduardo J Aguilar
- Department of Medicine, Valencia University, Avda. Blasco Ibáñez 15-17, 46010 Valencia, Spain; INCLIVA Health Research Institute, Clinical University Hospital, Avda. Blasco Ibáñez 17, 46010 Valencia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain.
| | - Iluminada Corripio
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain; Psychiatry Unit, Institut d'Investigació Biomèdica-Sant Pau (IIB-Sant Pau), Santa Creu i Sant Pau Hospital, C/ Sant Quintí, 89, 08026 Barcelona, Spain; Autonoma University, Plaça Cívica, Campus de la UAB, 08193 Cerdanyola del Vallés Barcelona, Spain.
| | - Gracián García-Martí
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain; Radiology Department, Quirón Hospital, Avda. Blasco Ibáñez 14, 46010 Valencia, Spain.
| | - Eva Grasa
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain; Psychiatry Unit, Institut d'Investigació Biomèdica-Sant Pau (IIB-Sant Pau), Santa Creu i Sant Pau Hospital, C/ Sant Quintí, 89, 08026 Barcelona, Spain; Autonoma University, Plaça Cívica, Campus de la UAB, 08193 Cerdanyola del Vallés Barcelona, Spain.
| | - Luis Martí-Bonmatí
- Department of Medicine, Valencia University, Avda. Blasco Ibáñez 15-17, 46010 Valencia, Spain; Radiology Department, Quirón Hospital, Avda. Blasco Ibáñez 14, 46010 Valencia, Spain; Radiology Department and GIBI230 Research Group, La Fe University and Polytechnic Hospital, Bulevar Sur, s/n, 46026 Valencia, Spain.
| | - Beatriz Gómez-Ansón
- Autonoma University, Plaça Cívica, Campus de la UAB, 08193 Cerdanyola del Vallés Barcelona, Spain; Neuroradiology Unit, Radiology Department, Neuroradiology Research Group, Institut d'Investigació Biomèdica-Sant Pau (IIB-Sant Pau), Santa Creu i Sant Pau Hospital, C/ Sant Quintí, 89, 08026 Barcelona, Spain.
| | - Julio Sanjuán
- Department of Medicine, Valencia University, Avda. Blasco Ibáñez 15-17, 46010 Valencia, Spain; INCLIVA Health Research Institute, Clinical University Hospital, Avda. Blasco Ibáñez 17, 46010 Valencia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain.
| | - Fidel Núñez-Marín
- Autonoma University, Plaça Cívica, Campus de la UAB, 08193 Cerdanyola del Vallés Barcelona, Spain; Neuroradiology Unit, Radiology Department, Neuroradiology Research Group, Institut d'Investigació Biomèdica-Sant Pau (IIB-Sant Pau), Santa Creu i Sant Pau Hospital, C/ Sant Quintí, 89, 08026 Barcelona, Spain.
| | - Esther Lorente-Rovira
- INCLIVA Health Research Institute, Clinical University Hospital, Avda. Blasco Ibáñez 17, 46010 Valencia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain.
| | - María J Escartí
- INCLIVA Health Research Institute, Clinical University Hospital, Avda. Blasco Ibáñez 17, 46010 Valencia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), C/ Monforte de Lemos 3-5, Pabellón 6-Sótano, 28029 Madrid, Spain.
| | - Alison Brabban
- Durham University, Stockton Rd, Durham, County Durham DH1, United Kingdom.
| | - Douglas Turkington
- Newcastle University, Newcastle upon Tyne, Tyne and Wear NE1 7RU, United Kingdom.
| |
Collapse
|
14
|
Behrendt RP. Mind-body problem and hippocampus. WILEY INTERDISCIPLINARY REVIEWS. COGNITIVE SCIENCE 2017; 8. [PMID: 28834414 DOI: 10.1002/wcs.1448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Commentary on Faw's comprehensive response to a previous commentary ('Hippocampus as a wormhole' by Ralf-Peter Behrendt, doi: 10.1002/wcs.1446) on Faw and Faw's paper (doi: 10.1002/wcs.1412). WIREs Cogn Sci 2017, e1447. doi: 10.1002/wcs.1447.
Collapse
Affiliation(s)
- Ralf-Peter Behrendt
- Elderly Mental Health Department, Oberlands Centre, Princess Elizabeth Hospital, St Martin's, Guernsey, Channel Islands
| |
Collapse
|
15
|
Behrendt R. Hippocampus as a wormhole: gateway to consciousness. WILEY INTERDISCIPLINARY REVIEWS. COGNITIVE SCIENCE 2017; 8. [DOI: 10.1002/wcs.1446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ralf‐Peter Behrendt
- Elderly Mental Health Department, Oberlands Centre, Princess Elizabeth Hospital, GuernseySt MartinChannel Islands
| |
Collapse
|