Limits...
Brain activity and connectivity during poetry composition: Toward a multidimensional model of the creative process.

Liu S, Erkkinen MG, Healey ML, Xu Y, Swett KE, Chow HM, Braun AR - Hum Brain Mapp (2015)

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.

View Article: PubMed Central - PubMed

Affiliation: Language Section, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland, 20892.

Show MeSH

Related in: MedlinePlus

Distinct associations between craft ratings and connectivity patterns in experts and novices.(A) An analysis of covariance (ANCOVA) model was used to examine group differences in the way craft scores were correlated with functional connections in experts and novices. In experts, craft scores were more tightly correlated with the strength of connections from the MPFC to a set of ICs including perisylvian areas, fusiform and angular gyri, precuneus and a mixture of motor and sensory areas, in a cascading fashion (indicated by red lines, see an example in Fig. 6B). On the other hand, in experts craft scores were more weakly correlated with the strength of connection between the MPFC and a component containing the dorsal portions of the IFG (BA44) and posterior parietal areas than they were in novices (indicated by the blue line) (FDR < 0.05 in each instance). (B) The relationship between ICs 55 and 24 is used to illustrate an instance in which craft score and functional connections were more strongly correlated in experts than in novices. The correlation (slope of the linear fit) between craft score and Fisher's z’ transformed correlation coefficient (of IC 55 and 24) is significantly greater (P = 0.0002, FDR = 0.008) in experts (purple: y = 6.21 × x + 4.10, P = 0.005) than in novices (green: y = −3.02 × x + 4.74, P = 0.01). AG, angular gyrus; FuG, fusiform gyrus; Ins, Insula; ITG, inferior temporal gyrus; LiG, lingual gyrus; M1, primary motor cortex; PCN, precuneus; PPC, posterior parietal cortex; PT, planum temporale; STG, superior temporal gyrus.
© Copyright Policy - creativeCommonsBy-nc-nd
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4581594&req=5

hbm22849-fig-0006: Distinct associations between craft ratings and connectivity patterns in experts and novices.(A) An analysis of covariance (ANCOVA) model was used to examine group differences in the way craft scores were correlated with functional connections in experts and novices. In experts, craft scores were more tightly correlated with the strength of connections from the MPFC to a set of ICs including perisylvian areas, fusiform and angular gyri, precuneus and a mixture of motor and sensory areas, in a cascading fashion (indicated by red lines, see an example in Fig. 6B). On the other hand, in experts craft scores were more weakly correlated with the strength of connection between the MPFC and a component containing the dorsal portions of the IFG (BA44) and posterior parietal areas than they were in novices (indicated by the blue line) (FDR < 0.05 in each instance). (B) The relationship between ICs 55 and 24 is used to illustrate an instance in which craft score and functional connections were more strongly correlated in experts than in novices. The correlation (slope of the linear fit) between craft score and Fisher's z’ transformed correlation coefficient (of IC 55 and 24) is significantly greater (P = 0.0002, FDR = 0.008) in experts (purple: y = 6.21 × x + 4.10, P = 0.005) than in novices (green: y = −3.02 × x + 4.74, P = 0.01). AG, angular gyrus; FuG, fusiform gyrus; Ins, Insula; ITG, inferior temporal gyrus; LiG, lingual gyrus; M1, primary motor cortex; PCN, precuneus; PPC, posterior parietal cortex; PT, planum temporale; STG, superior temporal gyrus.

Mentions: Figure 6 shows that when poems with high craft scores were generated, the MPFC was more strongly coupled to a set of language‐related brain regions in experts than in novices; on the other hand, the MPFC was more weakly correlated to the posterior parietal areas and pars opercularis.


Brain activity and connectivity during poetry composition: Toward a multidimensional model of the creative process.

Liu S, Erkkinen MG, Healey ML, Xu Y, Swett KE, Chow HM, Braun AR - Hum Brain Mapp (2015)

Distinct associations between craft ratings and connectivity patterns in experts and novices.(A) An analysis of covariance (ANCOVA) model was used to examine group differences in the way craft scores were correlated with functional connections in experts and novices. In experts, craft scores were more tightly correlated with the strength of connections from the MPFC to a set of ICs including perisylvian areas, fusiform and angular gyri, precuneus and a mixture of motor and sensory areas, in a cascading fashion (indicated by red lines, see an example in Fig. 6B). On the other hand, in experts craft scores were more weakly correlated with the strength of connection between the MPFC and a component containing the dorsal portions of the IFG (BA44) and posterior parietal areas than they were in novices (indicated by the blue line) (FDR < 0.05 in each instance). (B) The relationship between ICs 55 and 24 is used to illustrate an instance in which craft score and functional connections were more strongly correlated in experts than in novices. The correlation (slope of the linear fit) between craft score and Fisher's z’ transformed correlation coefficient (of IC 55 and 24) is significantly greater (P = 0.0002, FDR = 0.008) in experts (purple: y = 6.21 × x + 4.10, P = 0.005) than in novices (green: y = −3.02 × x + 4.74, P = 0.01). AG, angular gyrus; FuG, fusiform gyrus; Ins, Insula; ITG, inferior temporal gyrus; LiG, lingual gyrus; M1, primary motor cortex; PCN, precuneus; PPC, posterior parietal cortex; PT, planum temporale; STG, superior temporal gyrus.
© Copyright Policy - creativeCommonsBy-nc-nd
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4581594&req=5

hbm22849-fig-0006: Distinct associations between craft ratings and connectivity patterns in experts and novices.(A) An analysis of covariance (ANCOVA) model was used to examine group differences in the way craft scores were correlated with functional connections in experts and novices. In experts, craft scores were more tightly correlated with the strength of connections from the MPFC to a set of ICs including perisylvian areas, fusiform and angular gyri, precuneus and a mixture of motor and sensory areas, in a cascading fashion (indicated by red lines, see an example in Fig. 6B). On the other hand, in experts craft scores were more weakly correlated with the strength of connection between the MPFC and a component containing the dorsal portions of the IFG (BA44) and posterior parietal areas than they were in novices (indicated by the blue line) (FDR < 0.05 in each instance). (B) The relationship between ICs 55 and 24 is used to illustrate an instance in which craft score and functional connections were more strongly correlated in experts than in novices. The correlation (slope of the linear fit) between craft score and Fisher's z’ transformed correlation coefficient (of IC 55 and 24) is significantly greater (P = 0.0002, FDR = 0.008) in experts (purple: y = 6.21 × x + 4.10, P = 0.005) than in novices (green: y = −3.02 × x + 4.74, P = 0.01). AG, angular gyrus; FuG, fusiform gyrus; Ins, Insula; ITG, inferior temporal gyrus; LiG, lingual gyrus; M1, primary motor cortex; PCN, precuneus; PPC, posterior parietal cortex; PT, planum temporale; STG, superior temporal gyrus.
Mentions: Figure 6 shows that when poems with high craft scores were generated, the MPFC was more strongly coupled to a set of language‐related brain regions in experts than in novices; on the other hand, the MPFC was more weakly correlated to the posterior parietal areas and pars opercularis.

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.

View Article: PubMed Central - PubMed

Affiliation: Language Section, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bethesda, Maryland, 20892.

Show MeSH
Related in: MedlinePlus