Sex differences in memory processing in schizophrenia: an event-related potential (ERP) study

Progress in Neuro-psychopharmacology & Biological Psychiatry
François GuillemEmmanuel Stip

Abstract

Recently, research has begun to examine sex differences in cognitive functions in schizophrenia and whether such sex differences reflect normal, exaggerated, or reversed sexual dimorphism. This study examined this question by using event-related potentials (ERPs). ERPs were recorded in a recognition memory task in 18 patients and 18 matched control subjects. On an early frontal component, the results show an interaction between sex and pathological condition that results in an apparent reversed sexual dimorphism. On mid-latency components, patients show no sex difference on a frontal component, but a difference on the posterior component, whereas healthy subjects show a reverse pattern. Finally, late components show sex difference in the same direction as healthy subjects. These results indicate that the influence of sex on the cognitive impairment in schizophrenia is not homogenous across the information-processing cascade.

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Citations

Jul 30, 2009·Neuropsychology Review·Victoria M Leavitt, Terry E Goldberg
Apr 27, 2012·Women & Health·Nicki L Aubuchon-EndsleyTabitha Valtr
Aug 24, 2013·Schizophrenia Research and Treatment·Stéphane PotvinAdrianna Mendrek
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Aug 27, 2019·Schizophrenia Research·Fu-Chun ZhouYu-Tao Xiang
Jan 29, 2021·European Journal of Pharmacology·Anna Franceschini, Liana Fattore

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