Subjective awareness of everyday dysexecutive behavior precedes 'objective' executive problems in schizotypy: a replication and extension study.
This study aimed to examine the subjective awareness of everyday dysexecutive function and the 'objective' executive function in individuals with schizotypal personality features. Forty-nine individuals with schizotypal personality disorder (SPD) proneness (25 negative schizotypy and 24 non-negative schizotypy were identified using cluster analysis) and 44 non-SPD individuals completed a battery of 'objective' executive function tests and a self-reported Dysexecutive Questionnaire (DEX) on everyday executive problems. The findings showed that individuals with SPD proneness including negative schizotypy and non-negative schizotypy did not have significant worse performance than non-SPD in most of 'objective' executive function tests, but self-reported significantly disproportionate more dysexecutive problems than non-SPD. Furthermore, SPD proneness, especially negative schizotypy was found to give undependable estimation on their everyday dysexecutive function while non-negative schizotypy was not. The current findings suggest that the subjective awareness of dysexecutive function may precede actual 'objective' executive function impairments in a subtype of SPD (non-negative schizotypy) and the subjective complaint of the daily dysexecutive behavior in SPD proneness, especially negative schizotypy might result from their unreliable estimation of executive function.
Chan
Raymond C K
RC
Neuropsychology and Applied Cognitive Neuroscience Laboratory, Institute of Psychology, Chinese Academy of Sciences, Beijing, China. rckchan@psych.ac.cn
Yan
Chao
C
Qing
Yong-Hong
YH
Wang
Ya
Y
Wang
Yu-Na
YN
Ma
Zheng
Z
Hong
Xiao-Hong
XH
Li
Zhan-Jiang
ZJ
Gong
Qi-Yong
QY
Yu
Xin
X
D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D001364:Awareness / Q000502:physiology*; D003072:Cognition Disorders / Q000209:etiology* / Q000523:psychology*; D056344:Executive Function / Q000502:physiology*; D005260:Female; D006801:Humans; D007266:Inhibition, Psychological; D033182:Intention; D008297:Male; D009483:Neuropsychological Tests; D010555:Personality Inventory; D012569:Schizotypal Personality Disorder / Q000150:complications*; D057566:Self Report; D013223:Statistics as Topic; D055815:Young Adult