Brain activity and connectivity during poetry composition: Toward a multidimensional model of the creative process.
Bottom Line: Distinct activation patterns were associated with generation and revision, two major phases of the creative process.Experts showed significantly stronger deactivation of DLPFC/IPS during generation, suggesting that they may more effectively suspend cognitive control.Quality of poetry, assessed by an independent panel, was associated with divergent connectivity patterns in experts and novices, centered upon MPFC (for technical facility) and DLPFC/IPS (for innovation), suggesting a mechanism by which experts produce higher quality poetry.
Affiliation: Language Section, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland, 20892.Show MeSH
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Mentions: To explore the interactions between brain regions, we applied group ICA‐based functional network connectivity (FNC) analyses to the generation and revision phases together. In doing so, we were able to quantitatively compare the connectivity patterns of these two phases in a data‐driven way. The FNC method permits an unbiased examination of functional connections throughout the whole brain (the advantages of this approach are explained in the Methods section and the legend to Fig. 3A). In the dendrogram summarizing these results (Fig. 3A), the brain regions with high temporal correlations are grouped into one cluster. Interestingly, the MPFC and DLPFC/IPS, highlighted in the GLM analysis, naturally fell into two separate clusters, consistent with the central roles played by these two components in both generation and revision phases, as outlined above. Moreover, the MPFC was tightly coupled to many language related areas and the caudate nucleus (Cluster 2 in Fig. 3B), while the DLPFC/IPS operated in a more isolated mode (Cluster 4 in Fig. 3B).
Affiliation: Language Section, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland, 20892.