Journal
BRAIN STRUCTURE & FUNCTION
Volume 226, Issue 8, Pages 2511-2521Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00429-021-02329-1
Keywords
Corpus callosum; Creativity; Diffusion tensor imaging; Voxel-based morphometry; Corpus callosum morphology; Deterministic fiber tracking
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Funding
- National Natural Science Foundation of China (NSFC) [31800919, 31600878, 31771231]
- Shanghai Municipal Science and Technology Major Project [2018SHZDZX01]
- NSFC [61973086]
- ZJ Lab
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Recent neuroimaging studies indicate that creativity is associated with brain regions across both hemispheres and the corpus callosum facilitates inter-hemispheric information exchange. However, research findings on the relationship between inter-hemispheric interaction and creativity remain inconsistent, possibly due to different types of creativity and neural features being considered. This study found that verbal creativity is positively correlated with certain structural measures of the corpus callosum, while visual creativity shows no significant association with these measures.
Recent neuroimaging studies demonstrate that creativity is related to brain regions across both hemispheres, and the corpus callosum forms the structural basis of inter-hemispheric information exchange. However, the findings regarding the relationship between inter-hemispheric interaction and creativity remain inconsistent, which may be caused by different types of creativity and neural features being adopted. To clarify the inconsistency, and understand how inter-hemispheric interactions are related to different kinds of creativity, we explored the correlation between eight structural measures of the corpus callosum (CC) and two different domains of creativity [verbal creativity (VerC) and visual creativity (VisC)] using a large healthy-adult sample (n = 446). The results showed that VerC was positively correlated with fractional anisotropy (FA) and negatively correlated with the radial diffusivity (RD) of CC; whereas there was no significant association between VisC and CC measures. These results persisted after regressing VisC from VerC, regressing VerC from VisC, and regress out general intelligence from both creativity measures. In summary, we showed that the structural properties of corpus collosum are associated in different ways with two domains of creativity, i.e., verbal creativity and visual creativity, which enriches our understanding of the underlying neural mechanism in different types of creativity.
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