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Logo of jpnSubmit a ManuscriptEmail AlertsAbout JPNJournal of Psychiatry and Neuroscience
J Psychiatry Neurosci. Jul 1997; 22(4): 235–243.
PMCID: PMC1188864
The influence of neurocognitive deficits and symptoms on quality of life in schizophrenia.
R J Heslegrave, A G Awad, and L N Voruganti
Department of Psychiatry, University of Toronto, Wellesley Central Hospital, Ontario, Canada.
The purpose of the present study was to examine the relationship between neurocognitive deficits and self-reported quality of life in order to examine whether neurocognitive impairment interferes with any aspects of quality of life for patients with schizophrenia. Forty-two outpatients with stable chronic schizophrenia were assessed for neurocognitive deficits using a computerized test battery, and all patients completed a version of the Sickness Impact Profile (SIP) to assess their quality of life across a variety of domains. The neurocognitive assessment tests revealed significant deficits compared with normal control subjects, particularly with respect to impaired iconic memory and frontal functioning. Patients reported that their quality of life was compromised. Despite the substantiation of marked neurocognitive deficits and reduced quality of life, correlations between neurocognitive deficits and quality of life were largely nonsignificant or very weak. Symptom expression, however, particularly with regard to general psychopathology on the Positive and Negative Syndrome Scale (PANSS), was significantly associated with quality of life. These results suggest that neurocognitive deficits in schizophrenia, while often profound, appear to have little direct impact on the patient's perceived quality of life.
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