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皮质下结构与视觉发散思维:静息态功能磁共振成像分析。

Subcortical structures and visual divergent thinking: a resting-state functional MRI analysis.

机构信息

Shanghai Key Laboratory of Mental Health and Psychological Crisis Intervention, School of Psychology and Cognitive Science, East China Normal University, No. 3663, North Zhong Shan Road, Shanghai, 200062, China.

Institute of Systems Neuroscience, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.

出版信息

Brain Struct Funct. 2021 Nov;226(8):2617-2627. doi: 10.1007/s00429-021-02355-z. Epub 2021 Aug 3.

Abstract

An increasing number of studies have found that a few, specific subcortical regions are involved in creative visual divergent thinking. In addition, creative thinking is heavily reliant on the fronto-striatal dopaminergic pathways. This study aimed to explore whether spontaneous fluctuations in the subcortex, which contribute to our creative abilities, showed significant differences between individuals with different levels of creativity based on resting-state functional magnetic resonance imaging data. We calculated subcortical regions' seed-wise and dynamic functional connectivity (dFC), and then examined the differences between the high and low visual creativity groups. Furthermore, the topological properties of the subcortical network were measured, and their relationship with creative visual divergent thinking was calculated using brain-behavior correlation analyses. The results showed that functional connectivity (FC) between the putamen, pallidum, and thalamus indicated group differences within the subcortex. Whole-brain FC results showed group differences across subcortical (i.e., the thalamus and pallidum) and cerebral regions (i.e., the insula, middle frontal gyrus, and middle temporal gyrus). In addition, subcortical FC demonstrated a positive correlation with visual divergent thinking scores across the pallidum, putamen, and thalamus. Our findings provide novel insights into the relationship between visual divergent thinking and the activities of the subcortex. It is likely that not only fronto-striatal dopaminergic pathways, but also "motor" pathways, are involved in creative visual divergent thinking processing.

摘要

越来越多的研究发现,一些特定的皮质下区域与创造性视觉发散思维有关。此外,创造性思维高度依赖于额纹状体多巴胺能通路。本研究旨在通过静息态功能磁共振成像数据,探讨自发的皮质下波动是否在个体创造性差异中存在显著差异,这些波动有助于我们的创造性能力。我们计算了皮质下区域的种子式和动态功能连接(dFC),然后检查了高视觉创造力组和低视觉创造力组之间的差异。此外,还测量了皮质下网络的拓扑性质,并通过脑-行为相关分析计算了它们与创造性视觉发散思维的关系。结果表明,壳核、苍白球和丘脑之间的功能连接(FC)在皮质下区域内存在组间差异。全脑 FC 结果显示,皮质下(即丘脑和苍白球)和大脑区域(即岛叶、额中回和颞中回)存在组间差异。此外,皮质下 FC 与整个苍白球、壳核和丘脑的视觉发散思维得分呈正相关。我们的研究结果为视觉发散思维与皮质下活动之间的关系提供了新的见解。不仅是额纹状体多巴胺能通路,还有“运动”通路,可能都参与了创造性视觉发散思维处理。

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