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| Research article summary (published 29 Apr 2009): |
Neural networks involved in artistic creativity.
Full Abstract
Creativity has been proposed to be either the result of solely right hemisphere processes or of interhemispheric interactions. Little information is available, however, concerning the neuronal foundations of creativity. In this study, we introduced a new artistic task, designing a new tool (a pen), which let us quantitatively evaluate creativity by three indices of originality. These scores were analyzed in combination with brain activities measured by functional magnetic resonance imaging (fMRI). The results were compared between subjects who had been formally trained in design (experts) and novice subjects. In the experts, creativity was quantitatively correlated with the degree of dominance of the right prefrontal cortex over that of the left, but not with that of the right or left prefrontal cortex alone. In contrast, in novice subjects, only a negative correlation with creativity was observed in the bilateral inferior parietal cortex. We introduced structure equation modeling to analyze the interactions among these four brain areas and originality indices. The results predicted that training exerts a direct effect on the left parietal cortex. Additionally, as a result of the indirect effects, the activity of the right prefrontal cortex was facilitated, and the left prefrontal and right parietal cortices were suppressed. Our results supported the hypothesis that training increases creativity via reorganized intercortical interactions. (c) 2008 Wiley-Liss, Inc.
Author information
Author/s: Kowatari, Yasuyuki (Y); Lee, Seung Hee (SH); Yamamura, Hiromi (H); Nagamori, Yusuke (Y); Levy, Pierre (P); Yamane, Shigeru (S); Yamamoto, Miyuki (M);
Affiliation: Comprehensive Human Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, Japan.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Human brain mapping (Hum Brain Mapp), published in United States. (Language: eng)
Reference: 2009-May; vol 30 (issue 5) : pp 1678-90
Dates: Created 2009/04/20; Completed 2009/07/02;
PMID: 18677746, status: MEDLINE (last retrieval date: 7/2/2009, IMS Date: )
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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