Dance and emotion in posterior parietal cortex: a low-frequency rTMS study

Grosbras, M.-H., Tan, H. and Pollick, F.E. (2013) Dance and emotion in posterior parietal cortex: a low-frequency rTMS study. Brain Stimulation, 5(2), pp. 130-136. (doi:10.1016/j.brs.2012.03.013)

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Publisher's URL: http://dx.doi.org/10.1016/j.brs.2012.03.013

Abstract

Background: The neural bases of emotion are most often studied using short non-natural stimuli and assessed using correlational methods. Here we use a brain perturbation approach to make causal inferences between brain activity and emotional reaction to a long segment of dance.

Objective/Hypothesis: We aimed to apply offline rTMS over the brain regions involved in subjective emotional ratings to explore whether this could change the appreciation of a dance performance.

Methods: We first used functional magnetic resonance imaging (fMRI) to identify regions correlated with fluctuating emotional rating during a 4-minutes dance performance, looking at both positive and negative correlation. Identified regions were further characterized using meta-data interrogation. Low frequency repetitive TMS was applied over the most important node in a different group of participants prior to them rating the same dance performance as in the fMRI session.

Results: FMRI revealed a negative correlation between subjective emotional judgment and activity in the right posterior parietal cortex. This region is commonly involved in cognitive tasks and not in emotional task. Parietal rTMS had no effect on the general affective response, but it significantly (p<0.05 using exact t-statistics) enhanced the rating of the moment eliciting the highest positive judgments.

Conclusion: These results establish a direct link between posterior parietal cortex activity and emotional reaction to dance. They can be interpreted in the framework of competition between resources allocated to emotion and resources allocated to cognitive functions. They highlight potential use of brain stimulation in neuro-æsthetic investigations.

Item Type:Articles
Keywords:rTMS, emotion, dance, neuro-aesthetic, parietal cortex, action observation
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Tan, Ms Haodan and Pollick, Professor Frank and Grosbras, Dr Marie-Helene
Authors: Grosbras, M.-H., Tan, H., and Pollick, F.E.
Subjects:B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
College/School:College of Medical Veterinary and Life Sciences > Institute of Neuroscience and Psychology
Journal Name:Brain Stimulation
Publisher:Elsevier
ISSN:1935-861X
Published Online:30 March 2012
Copyright Holders:Copyright © 2012 Elsevier
First Published:First published in Brain Stimulation 2012
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
488162Watching Dance: Kinesthetic EmpathyFrank PollickArts and Humanities Research Council (AHRC)AH/F011229/1Psychology