Context and semantic working memory in schizophrenia: a computational and experimental investigation
Usher, Marius and Davelaar, Eddy J. and Bertelle, A.S. and Seevarajah, S. (2009) Context and semantic working memory in schizophrenia: a computational and experimental investigation. In: Mayor, J. and Ruh, N. and Plunkett, K. (eds.) Connectionist Models of Behaviour and Cognition II. Progress in Neural Processing 18. Singapore: World Scientific, pp. 91-102. ISBN 9789812834225.
We present a computational model for contextual deficits that underlie thought disorder in Schizophrenia. Predictions were obtained using a neurocomputational model in which lexical-semantic information is maintained in an activation buffer that can bias the interpretation of ambiguous information. Deficits in the capacity to maintain information in the buffer result in deficit in context maintenance. The predictions are shown to match results from an experimental study on Schizophrenia patients and matched controls.
|Item Type:||Book Section|
|School:||Birkbeck Schools and Departments > School of Science > Psychological Sciences|
|Date Deposited:||21 Mar 2011 09:22|
|Last Modified:||30 Aug 2013 08:44|
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