Universität zu Köln

Viswanathan, Shivakumar ORCID: 0000-0002-7513-3778, Wang, Bin A., Abdollahi, Rouhollah O., Daun, Silvia ORCID: 0000-0001-7342-1015, Grefkes, Christian ORCID: 0000-0002-1656-720X and Fink, Gereon R. ORCID: 0000-0002-8230-1856 (2019). Freely chosen and instructed actions are terminated by different neural mechanisms revealed by kinematics-informed EEG. Neuroimage, 188. S. 26 - 43. SAN DIEGO: ACADEMIC PRESS INC ELSEVIER SCIENCE. ISSN 1095-9572

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Abstract

Neurophysiological accounts of human volition are dominated by debates on the origin of voluntary choices but the neural consequences that follow such choices remain poorly understood. For instance, could one predict whether or not an action was chosen voluntarily based only on how that action is motorically executed? We investigated this possibility by integrating scalp electroencephalograms and index-finger accelerometer recordings acquired while people chose between pressing a left or right button either freely or as instructed by a visual cue. Even though freely selected and instructed actions were executed with equal vigor, the timing of the movement to release the button was comparatively delayed for freely selected actions. This chronometric difference was six-times larger for the beta-oscillations over the sensorimotor cortex that characteristically accompany an action's termination. This surprising modulation of an action's termination by volition was traceable to volition-modulated differences in how the competing yet non-selected action was represented and regulated.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Viswanathan, Shivakumar UNSPECIFIED orcid.org/0000-0002-7513-3778 UNSPECIFIED Wang, Bin A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Abdollahi, Rouhollah O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Daun, Silvia UNSPECIFIED orcid.org/0000-0001-7342-1015 UNSPECIFIED Grefkes, Christian UNSPECIFIED orcid.org/0000-0002-1656-720X UNSPECIFIED Fink, Gereon R. UNSPECIFIED orcid.org/0000-0002-8230-1856 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-155602
DOI:	10.1016/j.neuroimage.2018.12.005
Journal or Publication Title:	Neuroimage
Volume:	188
Page Range:	S. 26 - 43
Date:	2019
Publisher:	ACADEMIC PRESS INC ELSEVIER SCIENCE
Place of Publication:	SAN DIEGO
ISSN:	1095-9572
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EXTERNALLY TRIGGERED MOVEMENTS; REACTION-TIME; TACTILE FEEDBACK; MOTOR CORTEX; VOLUNTARY; BRAIN; NEUROSCIENCE; POTENTIALS; INTENTION; VOLITION Multiple languages Neurosciences; Neuroimaging; Radiology, Nuclear Medicine & Medical Imaging Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15560