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Journal of Vision
Article . 2010 . Peer-reviewed
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Journal of Vision
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Article . 2010
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Biological motion drives perception and action

Authors: Orban de Xivry, Jean-Jacques; Coppe, Sébastien; Lefèvre, Philippe; Missal, Marcus;

Biological motion drives perception and action

Abstract

Presenting a few dots moving coherently on a screen can yield to the perception of human motion. This perception is based on a specific network that is segregated from the traditional motion perception network and that includes the superior temporal sulcus (STS). In this study, we investigate whether this biological motion perception network could influence the smooth pursuit response evoked by a point-light walker. We found that smooth eye velocity during pursuit initiation was larger in response to the point-light walker than in response to one of its scrambled versions, to an inverted walker or to a single dot stimulus. In addition, we assessed the proximity to the point-light walker (i.e. the amount of information about the direction contained in the scrambled stimulus and extracted from local motion cue of biological motion) of each of our scrambled stimuli in a motion direction discrimination task with manual responses and found that the smooth pursuit response evoked by those stimuli moving across the screen was modulated by their proximity to the walker. Therefore, we conclude that biological motion facilitates smooth pursuit eye movements, hence influences both perception and action.

Country
Belgium
Related Organizations
Keywords

Adult, Male, VISUAL-PERCEPTION, SACCADES, point-light animation, Motion Perception, Walking, Models, Biological, biological motion, Young Adult, PURSUIT EYE-MOVEMENTS, 3212 Ophthalmology and optometry, Psychophysics, Saccades, action perception, Humans, NEURAL MECHANISMS, pursuit initiation, 11 Medical and Health Sciences, Science & Technology, LESIONS, CORTICAL AREAS MT, TEMPORAL CORTEX, Experimental Psychology, motion perception, Pursuit, Smooth, 17 Psychology and Cognitive Sciences, Ophthalmology, smooth pursuit, BRAIN-AREAS, Female, SMOOTH-PURSUIT, Life Sciences & Biomedicine, INTEGRATION, Algorithms, Photic Stimulation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
53
Top 10%
Top 10%
Top 10%
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