When a schizophrenic deficit becomes a reasoning advantage

Schizophrenia Research
Emmanuel MelletSonia Dollfus

Abstract

A deficit in context processing has been proposed to be one of the major deficiencies in schizophrenia. A demanding reasoning task, known to promote a very reproducible bias (i.e., a reasoning error) in healthy subjects, triggered by a misleading context, was administered in 26 schizophrenic patients and 26 healthy participants. Responses at random were checked by including an additional group of 11 schizophrenic patients who performed a control version of the task. We showed that patients presented a surprising imperviousness to the reasoning bias and had significantly better logical performances than their paired healthy participants. This finding demonstrates that there are some problem solving situations where disregarding contextual information, a cognitive deficit that usually impairs schizophrenic patients gives them a cognitive advantage over healthy controls.

References

Sep 1, 1993·Behaviour Research and Therapy·D R Hemsley
Dec 1, 1996·Archives of General Psychiatry·D Servan-SchreiberS Steingard
Mar 7, 1998·Archives of General Psychiatry·P StrattaA Rossi
Oct 31, 2000·Journal of Cognitive Neuroscience·O HoudéN Tzourio-Mazoyer
Dec 25, 2003·Schizophrenia Research·Vinod GoelAnnalena Venneri

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Citations

Sep 15, 2015·Cognitive Neuropsychiatry·Matthew Parrott, Philipp Koralus
Jul 6, 2010·Neuropsychologia·Nicolas PoirelSonia Dollfus
Apr 4, 2009·Physiological Reviews·Riitta Hari, Miiamaaria V Kujala

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