Different contributions of visual and motor brain areas during liking judgments of same- and different-gender bodies

Abstract Previous neuroimaging studies have shown that body aesthetic appreciation involves the activation of both visual and motor areas, supporting a role of sensorimotor embodiment in aesthetic processing. Causative evidence, however, that neural activity in these areas is crucial for reliable ae...

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Bibliographic Details
Published in:Brain research 2016-09, Vol.1646, p.98-108
Main Authors: Cazzato, V, Mele, S, Urgesi, C
Format: Article
Language:English
Subjects:
Adult
Brain - physiology
Embodiment
Esthetics
Extrastriate body area
Female
Humans
Judgment - physiology
Male
Neuroaesthetics
Neurology
Occipital Lobe - physiology
Prefrontal Cortex - physiology
Premotor cortex
Temporal Lobe - physiology
Transcranial Magnetic Stimulation
Visual Perception - physiology
Young Adult
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Summary:Abstract Previous neuroimaging studies have shown that body aesthetic appreciation involves the activation of both visual and motor areas, supporting a role of sensorimotor embodiment in aesthetic processing. Causative evidence, however, that neural activity in these areas is crucial for reliable aesthetic body appreciation has so far provided only for extrastriate body area (EBA), while the functional role played by premotor regions remained less clear. Here, we applied short trains of repetitive transcranial magnetic stimulation (rTMS) over bilateral dorsal premotor cortex (dPMC) and EBA during liking judgments of female and male bodies varying in weight and implied motion. We found that both dPMC and EBA are necessary for aesthetic body appreciation, but their relative contribution depends on the model's gender. While dPMC-rTMS decreased the liking judgments of same-, but not of different-gender models, EBA-rTMS increased the liking judgments of different-, but not of same-gender models. Relative contributions of motor and visual areas may reflect processing of diverse aesthetic properties, respectively implied motion vs. body form, and/or greater sensorimotor embodiment of same- vs. different-gender bodies. Results suggest that aesthetic body processing is subserved by a network of motor and visual areas, whose relative contribution may depend on the specific stimulus and task.
ISSN:0006-8993
1872-6240
DOI:10.1016/j.brainres.2016.05.047