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Journal article
Anodal tDCS to Right Dorsolateral Prefrontal Cortex Facilitates Performance for Novice Jazz Improvisers but Hinders Experts
Frontiers in human neuroscience, v 10(2016), pp 579-579
16 Nov 2016
PMID: 27899889
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Research on creative cognition reveals a fundamental disagreement about the nature of creative thought, specifically, whether it is primarily based on automatic, associative (Type-1) or executive, controlled (Type-2) processes. We hypothesized that Type-1 and Type-2 processes make differential contributions to creative production that depend on domain expertise. We tested this hypothesis with jazz pianists whose expertise was indexed by the number of public performances given. Previous fMRI studies of musical improvisation have reported that domain expertise is characterized by deactivation of the right-dorsolateral prefrontal cortex (r-DLPFC), a brain area associated with Type-2 executive processing. We used anodal, cathodal, and sham transcranial direct current stimulation (tDCS) applied over r-DLPFC with the reference electrode on the contralateral mastoid (1.5 mA for 15 min, except for sham) to modulate the quality of the pianists' performances while they improvised over chords with drum and bass accompaniment. Jazz experts rated each improvisation for creativity, esthetic appeal, and technical proficiency. There was no main effect of anodal or cathodal stimulation on ratings compared to sham; however, a significant interaction between anodal tDCS and expertise emerged such that stimulation benefitted musicians with less experience but hindered those with more experience. We interpret these results as evidence for a dual-process model of creativity in which novices and experts differentially engage Type-1 and Type-2 processes during creative production.
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Details
- Title
- Anodal tDCS to Right Dorsolateral Prefrontal Cortex Facilitates Performance for Novice Jazz Improvisers but Hinders Experts
- Creators
- David S. Rosen - Drexel UniversityBrian Erickson - Drexel UniversityYoungmoo E. Kim - Drexel UniversityDaniel Mirman - University of Alabama at BirminghamRoy H. Hamilton - University of PennsylvaniaJohn Kounios - Drexel University
- Publication Details
- Frontiers in human neuroscience, v 10(2016), pp 579-579
- Publisher
- Frontiers Media S.A
- Grant note
- Drexel University
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Psychological and Brain Sciences (Psychology); Electrical and Computer Engineering
- Web of Science ID
- WOS:000387825300001
- Scopus ID
- 2-s2.0-84995902677
- Other Identifier
- 991019168163204721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Neurosciences
- Psychology