Why I tense up when you watch me: Inferior parietal cortex mediates an audience's influence on motor performance

Scientific Reports
Michiko YoshieNeil A Harrison

Abstract

The presence of an evaluative audience can alter skilled motor performance through changes in force output. To investigate how this is mediated within the brain, we emulated real-time social monitoring of participants' performance of a fine grip task during functional magnetic resonance neuroimaging. We observed an increase in force output during social evaluation that was accompanied by focal reductions in activity within bilateral inferior parietal cortex. Moreover, deactivation of the left inferior parietal cortex predicted both inter- and intra-individual differences in socially-induced change in grip force. Social evaluation also enhanced activation within the posterior superior temporal sulcus, which conveys visual information about others' actions to the inferior parietal cortex. Interestingly, functional connectivity between these two regions was attenuated by social evaluation. Our data suggest that social evaluation can vary force output through the altered engagement of inferior parietal cortex; a region implicated in sensorimotor integration necessary for object manipulation, and a component of the action-observation network which integrates and facilitates performance of observed actions. Social-evaluative situatio...Continue Reading

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Citations

Apr 13, 2018·Social Cognitive and Affective Neuroscience·Vikram S ChibJohn P O'Doherty
Dec 6, 2019·Journal of Speech, Language, and Hearing Research : JSLHR·Bridget Walsh, Evan Usler
May 22, 2019·Scientific Reports·Delphine OudietteMathias Pessiglione
Jan 24, 2020·Frontiers in Behavioral Neuroscience·Leslie TricocheMartine Meunier
Apr 12, 2018·Journal of Neurophysiology·Shuntaro Kotani, Shinichi Furuya
Jan 29, 2019·Frontiers in Psychology·Dana SwarbrickLaurel J Trainor
Oct 28, 2019·Frontiers in Human Neuroscience·Bridget WalshChristine Weber
Jan 7, 2021·PloS One·Shinichi FuruyaNoriko Nagata
Mar 2, 2021·Frontiers in Human Neuroscience·Jan LimanMartin Sommer
Jun 6, 2021·Neuroscience and Biobehavioral Reviews·Paul J EslingerRoland Zahn

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Methods Mentioned

BETA
force measurement

Software Mentioned

Statistical Parametric Mapping SPM8
SPM8
Spike2
Matlab

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