Neurocognition in Psychometrically Defined College Schizotypy Samples: We Are NOT Measuring the "Right Stuff''

被引:60
作者
Chun, Charlotte A. [1 ]
Minor, Kyle S. [1 ]
Cohen, Alex S. [1 ]
机构
[1] Louisiana State Univ, Dept Psychol, Baton Rouge, LA 70803 USA
关键词
Risk marker; Psychopathology; Quality of life; Meta-analysis; Functioning; Students; SCHIZOPHRENIA SPECTRUM DISORDERS; CONSENSUS COGNITIVE BATTERY; WORKING-MEMORY; PERSONALITY QUESTIONNAIRE; SOCIAL ANHEDONIA; NEUROPSYCHOLOGICAL STATUS; EXECUTIVE FUNCTIONS; REPEATABLE BATTERY; TASK-PERFORMANCE; DEFICITS;
D O I
10.1017/S135561771200152X
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
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)
引用
收藏
页码:324 / 337
页数:14
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