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Mémoire spatiale contextuelle et schizophrénie

Abstract : The aim of this study was to evaluate a possible contextual binding deficit in schizophrenic patients by using a visuo-spatial task and to test the construction of a cognitive map of the environment by patients. A navigation task was performed by 20 young schizophrenics patients and 28 controls subjects. Visuo-spatial memory explorations consisted in three different tasks: free recall, recognitions without effect order; recognition with effect order. Schizophrenics patients performed significantly less actions, identified less landmarks and made more errors in orientation changes than control subjects. For task with order effect schizophrenic patients made more errors than controls. Schizophrenic patients were impaired in cognitive map construction as well as during recognition of chronological landmarks. These results are compatible with the hypothesis of hippocampal and prefrontal cortex abnormalities in schizophrenia.
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Contributor : Celia Mores Dibo-Cohen <>
Submitted on : Wednesday, June 20, 2007 - 7:25:12 PM
Last modification on : Monday, December 14, 2020 - 9:53:10 AM
Long-term archiving on: : Friday, September 21, 2012 - 4:45:32 PM


  • HAL Id : tel-00156057, version 1


Celia Mores Dibo-Cohen. Mémoire spatiale contextuelle et schizophrénie. Neurosciences [q-bio.NC]. Université Pierre et Marie Curie - Paris VI, 2006. Français. ⟨tel-00156057⟩



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