Visual object processing in schizophrenia: evidence for an associative agnosic deficit

V.S. Gabrovska, K.R. Laws, J. Sinclair, P. J. McKenna

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    38 Citations (Scopus)


    Early studies suggested visual form perception impairment in schizophrenia. To re-examine this claim and characterise the deficit neuropsychologically, 41 schizophrenic patients were administered tests sensitive to different levels of visual object perception and recognition. Intellectually well-preserved patients were examined separately on these and additional tests. Single case analysis was also applied to four patients showing varying degrees of general intellectual impairment. As a group, the patients showed little impairment on tests of early visual object perception, but greater impairment on higher-level visual processing tests, in particular object recognition and naming. This held true for patients with preserved general intellectual function. Single case analysis suggested that patients with schizophrenia have a selective deficit affecting object recognition and identification, with a pattern similar to visual associative agnosia in neurological patients.
    Original languageEnglish
    Pages (from-to)277-286
    JournalSchizophrenia Research
    Issue number2-3
    Publication statusPublished - 2002


    • visual object
    • schizophrenia
    • Agnosia


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