期刊
JOURNAL OF THE INTERNATIONAL NEUROPSYCHOLOGICAL SOCIETY
卷 19, 期 3, 页码 324-337出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S135561771200152X
关键词
Risk marker; Psychopathology; Quality of life; Meta-analysis; Functioning; Students
资金
- internal Louisiana State University grant
- Louisiana Board of Regents grant
Although neurocognitive deficits are an integral characteristic of schizophrenia, there is inconclusive evidence as to whether they manifest across the schizophrenia-spectrum. We conducted two studies and a meta-analysis comparing neurocognitive functioning between psychometrically defined schizotypy and control groups recruited from a college population. Study One compared groups on measures of specific and global neurocognition, and subjective and objective quality of life. Study Two examined working memory and subjective cognitive complaints. Across both studies, the schizotypy group showed notably decreased subjective (d = 1.52) and objective (d = 1.02) quality of life and greater subjective cognitive complaints (d = 1.88); however, neurocognition was normal across all measures (d's < .35). Our meta-analysis of 33 studies examining neurocognition in at-risk college students revealed between-group differences in the negligible effect size range for most domains. The schizotypy group demonstrated deficits of a small effect size for working memory and set-shifting abilities. Although at-risk individuals report relatively profound neurocognitive deficits and impoverished quality of life, neurocognitive functioning assessed behaviorally is largely intact. Our data suggest that traditionally defined neurocognitive deficits do not approximate the magnitude of subjective complaints associated with psychometrically defined schizotypy. (JINS, 2013, 19, 324-337)
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