Universität zu Köln

Orgs, Guido ORCID: 0000-0003-3725-3979, Dovern, Anna, Hagura, Nobuhiro, Haggard, Patrick ORCID: 0000-0001-7798-793X, Fink, Gereon R. ORCID: 0000-0002-8230-1856 and Weiss, Peter H. ORCID: 0000-0002-5230-9080 (2016). Constructing Visual Perception of Body Movement with the Motor Cortex. Cereb. Cortex, 26 (1). S. 440 - 450. CARY: OXFORD UNIV PRESS INC. ISSN 1460-2199

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Abstract

The human brain readily perceives fluent movement from static input. Using functional magnetic resonance imaging, we investigated brain mechanisms that mediate fluent apparent biological motion (ABM) perception from sequences of body postures. We presented body and nonbody stimuli varying in objective sequence duration and fluency of apparent movement. Three body postures were ordered to produce a fluent (ABC) or a nonfluent (ACB) apparent movement. This enabled us to identify brain areas involved in the perceptual reconstruction of body movement from identical lower-level static input. Participants judged the duration of a rectangle containing body/nonbody sequences, as an implicit measure of movement fluency. For body stimuli, fluent apparent motion sequences produced subjectively longer durations than nonfluent sequences of the same objective duration. This difference was reduced for nonbody stimuli. This body-specific bias in duration perception was associated with increased blood oxygen level-dependent responses in the primary (M1) and supplementary motor areas. Moreover, fluent ABM was associated with increased functional connectivity between M1/SMA and right fusiform body area. We show that perceptual reconstruction of fluent movement from static body postures does not merely enlist areas traditionally associated with visual body processing, but involves cooperative recruitment of motor areas, consistent with a motor way of seeing.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Orgs, Guido UNSPECIFIED orcid.org/0000-0003-3725-3979 UNSPECIFIED Dovern, Anna UNSPECIFIED UNSPECIFIED UNSPECIFIED Hagura, Nobuhiro UNSPECIFIED UNSPECIFIED UNSPECIFIED Haggard, Patrick UNSPECIFIED orcid.org/0000-0001-7798-793X UNSPECIFIED Fink, Gereon R. UNSPECIFIED orcid.org/0000-0002-8230-1856 UNSPECIFIED Weiss, Peter H. UNSPECIFIED orcid.org/0000-0002-5230-9080 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-292503
DOI:	10.1093/cercor/bhv262
Journal or Publication Title:	Cereb. Cortex
Volume:	26
Number:	1
Page Range:	S. 440 - 450
Date:	2016
Publisher:	OXFORD UNIV PRESS INC
Place of Publication:	CARY
ISSN:	1460-2199
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BIOLOGICAL MOTION; APPARENT MOTION; ACTION REPRESENTATION; TEMPORAL BISECTION; NEURAL MECHANISMS; ACTIVATION; NEURONS; FMRI; MODULATION; SIMULATION Multiple languages Neurosciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/29250