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Visual information processing deficits in clinically remitted outpatient schizophrenics.

C V Ananthanarayanan¹, N Janakiramaiah, B N Gangadhar

¹C.V. Ananthanarayanan, DM&SP, Clinical Psychologist, Department of Psychiatry, NIMHANS, Bangalore - 560 029.

Indian Journal of Psychiatry

|July 22, 2011

Summary

Remitted schizophrenics show information processing deficits compared to neurotic depressives. These deficits persist even when symptoms are in remission, suggesting underlying cognitive impairments in schizophrenia.

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Area of Science:

Cognitive psychology
Neuroscience
Psychiatry

Background:

Schizophrenia is a complex mental disorder characterized by cognitive impairments.
Information processing deficits are a hallmark of schizophrenia, but their persistence during remission is not fully understood.

Purpose of the Study:

To investigate visual information processing in remitted schizophrenics compared to neurotic depressives.
To determine if cognitive deficits persist in schizophrenia even during periods of clinical remission.

Main Methods:

Studied 24 remitted schizophrenics and 24 matched neurotic depressives.
Assessed visual information processing using simple reaction time, choice reaction time, and a forced choice span of apprehension test.

Main Results:

Remitted schizophrenics performed significantly worse on all three visual information processing measures compared to neurotic depressives.
This indicates persistent deficits in cognitive functions related to information processing.

Conclusions:

Information processing deficits are evident in individuals with schizophrenia, even during clinical remission.
These findings suggest that cognitive impairments may be a core feature of schizophrenia, independent of acute symptomatology.