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Beyond alpha-band: The neural correlate of creative thinking
Department of Psychology, University of Turin, Torino, 10124, Italy.
Department of Psychology, University of Turin, Torino, 10124, Italy; Department of Psychology, Yale University, New Haven, CT, 06520-8205, USA.ORCID iD: 0000-0002-7823-4769
Center for Mind/Brain Sciences-CIMeC, University of Trento, Rovereto, TN, 38068, Italy; Department of Psychology, The George Washington University, Washington DC, 20052, USA.
Department of Management and Production Engineering (DIGEP), Politecnico di Torino, Turin, 10129, Italy.
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2023 (English)In: Neuropsychologia, ISSN 0028-3932, E-ISSN 1873-3514, Vol. 179, article id 108446Article in journal (Refereed) Published
Abstract [en]

The compound nature of creativity entails the interplay of multiple cognitive processes, making it difficult to attribute creativity to a single neural signature. Divergent thinking paradigms, widely adopted to investigate creative production, have highlighted the key role of specific mental operations subserving creativity, such as inhibition of external stimuli, loose semantic associations, and mental imagery. Neurophysiological studies have typically shown a high alpha rhythm synchronization when individuals are engaged in creative ideation. Also, oculomotor activity and pupil diameter have been proposed as useful indicators of mental operations involved in such a thinking process. The goal of this study was to investigate whether beyond alpha-band activity other higher frequency bands, such as beta and gamma, may subserve divergent and convergent thinking and whether those could be associated with a different gaze bias and pupil response during ideas generation. Implementing a within-subjects design we collected behavioral measures, neural activity, gaze patterns, and pupil dilation while participants performed a revised version of the Alternative Uses Task, in which divergent thinking is contrasted to convergent thinking. As expected, participants took longer to generate creative ideas as compared to common ones. Interestingly, during divergent thinking participants displayed alpha synchronization along with beta and gamma desynchronization, more pronounced leftward gaze shift, and greater pupil dilation. During convergent thinking, an opposite pattern was observed: desynchronization in alpha and an increase in beta and gamma rhythm, along with a reduction of leftward gaze shift and greater pupil constriction. The present study uncovered specific neural dynamics and physiological patterns during idea generation, providing novel insight into the complex physiological signature of creative production.

Place, publisher, year, edition, pages
Elsevier, 2023. Vol. 179, article id 108446
Keywords [en]
Divergent thinking, Creativity, Alpha band, Beta band, Gamma band, Eye-tracker
National Category
Neurosciences
Research subject
Product Innovation
Identifiers
URN: urn:nbn:se:ltu:diva-94895DOI: 10.1016/j.neuropsychologia.2022.108446ISI: 000927022600001PubMedID: 36529264Scopus ID: 2-s2.0-85144258496OAI: oai:DiVA.org:ltu-94895DiVA, id: diva2:1720211
Note

Validerad;2023;Nivå 2;2023-01-01 (sofila)

Available from: 2022-12-19 Created: 2022-12-19 Last updated: 2023-09-05Bibliographically approved

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Törlind, Peter

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