Performance of Verbal Fluency as an Endophenotype in Patients with Familial versus Sporadic Schizophrenia and Their Parents

What’s the neurocognitive deficit as an endophenotype to familial schizophrenia? Here, we investigate the neurocognitive endophenotype in first-episode patients with familial schizophrenia (FS) and sporadic schizophrenia (SS), and their parents. 98 FS patients and their 105 parents; 190 SS patients...

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Bibliographic Details
Published in:Scientific reports 2016-09, Vol.6 (1), p.32597-32597, Article 32597
Main Authors: Liang, Sugai, Deng, Wei, Wang, Qiang, Ma, Xiaohong, Li, Mingli, Brown, Matthew R. G., Hu, Xun, Li, Xinmin, Greenshaw, Andrew J., Li, Tao
Format: Article
Language:English
Subjects:
631/378/2649
692/699/476/1799
Cognition
Cognitive ability
Humanities and Social Sciences
Intelligence
Memory
Mental disorders
multidisciplinary
Parents & parenting
Schizophrenia
Science
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Summary:What’s the neurocognitive deficit as an endophenotype to familial schizophrenia? Here, we investigate the neurocognitive endophenotype in first-episode patients with familial schizophrenia (FS) and sporadic schizophrenia (SS), and their parents. 98 FS patients and their 105 parents; 190 SS patients and their 207 parents; 195 controls matched with patients, and 190 controls matched with the patients’ parents, were assessed with the short version of the Wechsler Adult Intelligence Scale-Revised in China (WAIS-RC), the immediate and delayed logical memory tests from the Wechsler Memory Scale-Revised in China (WMS-RC), the Verbal Fluency Test (VFT), the Trail Making Test Parts A and B-Modified (TMA, TMB-M), and the Modified Wisconsin Card Sorting Test (WCST-M). The results showed that with age, gender, and education as covariates, after controlling for false discovery rates, the FS group and their parent group performed worse than the SS group and their parent group on VFT. No significant differences were found for other neurocognitive tests between the FS and SS patient groups, and their respective parent groups. Our findings suggest the patients with familial and sporadic schizophrenia and their respective parent groups may have a different genetic predisposition in relation to a cognitive endophenotype.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep32597