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The high-level basis of body adaptation

Citation

Brooks, KR and Clifford, CWG and Stevenson, RJ and Mond, J and Stephen, ID, The high-level basis of body adaptation, Royal Society Open Science, 5 pp. 1-9. ISSN 2054-5703 (2018) [Refereed Article]


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Copyright Statement

Copyright 2018 The Authors Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.1098/rsos.172103

Abstract

Prolonged visual exposure, or ‘adaptation’, to thin (wide) bodies causes a perceptual aftereffect such that subsequently seen bodies appear wider (thinner) than they actually are. Here, we conducted two experiments investigating the effect of rotating the orientation of the test stimuli by 90° from that of the adaptor. Aftereffects were maximal when adapting and test bodies had the same orientation. When they differed, the axis of the perceived distortion changed with the orientation of the body. Experiment 1 demonstrated a 58% transfer of the aftereffect across orientations. Experiment 2 demonstrated an even greater degree of aftereffect transfer when the influence of low-level mechanisms was reduced further by using adaptation and test stimuli with different sizes. These results indicate that the body aftereffect is mediated primarily by high-level object-based processes, with low-level retinotopic mechanisms playing only a minor role. The influence of these low-level processes is further reduced when test stimuli differ in size from adaptation stimuli.

Item Details

Item Type:Refereed Article
Keywords:adaptation; aftereffects; body size and shape misperception; high level; low level
Research Division:Medical and Health Sciences
Research Group:Public Health and Health Services
Research Field:Mental Health
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Mental Health
Author:Mond, J (Dr Jon Mond)
ID Code:127988
Year Published:2018
Deposited By:Centre for Rural Health
Deposited On:2018-08-27
Last Modified:2018-09-13
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