White matter correlates of cognitive flexibility in youth with bipolar disorder and typically developing children and adolescents.
White matter correlates of cognitive flexibility in youth with bipolar disorder and typically developing children and adolescents.
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DOI：
10.1016/j.pscychresns.2020.111169
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发表时间：
2020-11-30
期刊：
影响因子：
--
通讯作者：
Dickstein DP
中科院分区：
文献类型：
--
作者：
Radoeva PD;Jenkins GA;Schettini E;Gilbert AC;Barthelemy CM;DeYoung LLA;Kudinova AY;Kim KL;MacPherson HA;Dickstein DP
Prior studies using behavioral tasks and neuroimaging have shown that children and adolescents with bipolar disorder (BD) have deficits in cognitive flexibility (CF)—defined as adaptation to changing rewards and punishments. However, no study, to our knowledge, has examined the white matter microstructural correlates of CF in youth with BD. To address this gap, we examined the relationship between CF assessed with the Cambridge Neuropsychological Testing Automated Battery (CANTAB)’s Intra-Extra Dimensional Set Shift task (ID/ED) and diffusion tensor imaging analyzed with FSL’s preprocessing tools and Tract-Based Spatial Statistics (TBSS). We found a significantly different relationship between microstructural integrity of multiple white matter regions and CF performance in BD (n=28) and age-matched typically developing control (TDC) youths (n=26). Evaluation of the slopes of linear regressions in BD vs. TDC (ID/ED Simple Reversal error rate vs. fractional anisotropy) revealed significantly different slopes across the groups, indicating an aberrant relationship between CF and underlying white matter microstructure in youth with BD. These results underscore the importance of examining specific CF-neuroimaging relationships in BD youth. Future longitudinal studies could seek to define the white matter microstructural trajectories in BD vs. TDC, and relative to CF deficits and BD illness course.
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