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JOURNAL ARTICLE
META-ANALYSIS
RESEARCH SUPPORT, NON-U.S. GOV'T
A meta-analysis of neurocognition in youth with familial high risk for bipolar disorder.
OBJECTIVE: Neuropsychological impairment, including deficits in social cognition is evident in subjects at genetic high-risk for psychosis. However, findings in youth at genetic risk to bipolar disorder (BP) have been suggested to be less supportive of premorbid deficits. We aimed to conduct a meta-analysis of cognitive deficits in youth with familiar risk for bipolar disorder (FHR-BD).
METHODS: A novel meta-analysis of FHR-BD (mean age 10-25), including 18 studies (786 offsprings/siblings of patients with BD and 794 healthy controls), was conducted.
RESULTS: Both general cognition (d=0.29, CI=0.15-0.44) and social cognition (d=0.23, CI=0-0.45) were impaired in FHR-BD. In comparison to controls, FHR-BD had significant deficits in several cognitive domains, including visual memory (d=0.35), verbal memory (d=0.21), processing speed (d=0.26) and sustained attention (d=0.36). There was no significant difference between FHR-BD and controls in planning and working memory.
CONCLUSIONS: Cognitive deficits are evident in individuals who are at genetic high-risk for developing BD. Neurodevelopmental abnormalities are likely playing a role not only in schizophrenia but also in BD.
METHODS: A novel meta-analysis of FHR-BD (mean age 10-25), including 18 studies (786 offsprings/siblings of patients with BD and 794 healthy controls), was conducted.
RESULTS: Both general cognition (d=0.29, CI=0.15-0.44) and social cognition (d=0.23, CI=0-0.45) were impaired in FHR-BD. In comparison to controls, FHR-BD had significant deficits in several cognitive domains, including visual memory (d=0.35), verbal memory (d=0.21), processing speed (d=0.26) and sustained attention (d=0.36). There was no significant difference between FHR-BD and controls in planning and working memory.
CONCLUSIONS: Cognitive deficits are evident in individuals who are at genetic high-risk for developing BD. Neurodevelopmental abnormalities are likely playing a role not only in schizophrenia but also in BD.
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