A computational approach to memory deficits in schizophrenia

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Title: A computational approach to memory deficits in schizophrenia
Authors: Meeter, M. meeter@psy.uva.nl, Murre, J.M.J.1 jaap@murre.com, Talamini, L.M.1 talamini@psy.uva.nl
Source: Neurocomputing. Jun2002, Vol. 44-46, p929. 8p.
Subjects: Memory disorders, Neuropsychology, Schizophrenia
Abstract: Episodic memory impairment is one of the most reliable neuropsychological findings in schizophrenia. It has been suggested that medial temporal lobe abnormalities in schizophrenia underlie this impairment. We suggest that the specific memory deficits in schizophrenia may be caused by abnormal hippocampo-cortical communication via parahippocampal areas. We have used connectionist simulations to investigate this notion. The simulations involve list learning in a model that incorporates characteristics of the hippocampal and parahippocampal region. In this model context is used to store and recall episodic memories. Reduction of the nodes in the parahippocampal module of the model resulted in a schizophrenia-like memory deficit profile. [Copyright &y& Elsevier]
Copyright of Neurocomputing is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 7826572
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PubTypeId: academicJournal
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  Data: A computational approach to memory deficits in schizophrenia
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  Data: <searchLink fieldCode="AR" term="%22Meeter%2C+M%2E%22">Meeter, M.</searchLink><i> meeter@psy.uva.nl</i><br /><searchLink fieldCode="AR" term="%22Murre%2C+J%2EM%2EJ%2E%22">Murre, J.M.J.</searchLink><relatesTo>1</relatesTo><i> jaap@murre.com</i><br /><searchLink fieldCode="AR" term="%22Talamini%2C+L%2EM%2E%22">Talamini, L.M.</searchLink><relatesTo>1</relatesTo><i> talamini@psy.uva.nl</i>
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  Data: <searchLink fieldCode="JN" term="%22Neurocomputing%22">Neurocomputing</searchLink>. Jun2002, Vol. 44-46, p929. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Memory+disorders%22">Memory disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Neuropsychology%22">Neuropsychology</searchLink><br /><searchLink fieldCode="DE" term="%22Schizophrenia%22">Schizophrenia</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Episodic memory impairment is one of the most reliable neuropsychological findings in schizophrenia. It has been suggested that medial temporal lobe abnormalities in schizophrenia underlie this impairment. We suggest that the specific memory deficits in schizophrenia may be caused by abnormal hippocampo-cortical communication via parahippocampal areas. We have used connectionist simulations to investigate this notion. The simulations involve list learning in a model that incorporates characteristics of the hippocampal and parahippocampal region. In this model context is used to store and recall episodic memories. Reduction of the nodes in the parahippocampal module of the model resulted in a schizophrenia-like memory deficit profile. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Neurocomputing is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/S0925-2312(02)00493-9
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      – SubjectFull: Schizophrenia
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              Text: Jun2002
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              Y: 2002
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