enticott-isbodydysmorphic-2014.pdf (665.22 kB)
Is body dysmorphic disorder associated with abnormal bodily self-awareness? A study using the rubber hand illusion.
journal contribution
posted on 2014-01-01, 00:00 authored by R A Kaplan, Peter EnticottPeter Enticott, J Hohwy, D J Castle, S L RossellEvidence from past research suggests that behaviours and characteristics related to body dissatisfaction may be associated with greater instability of perceptual body image, possibly due to problems in the integration of body-related multisensory information. We investigated whether people with body dysmorphic disorder (BDD), a condition characterised by body image disturbances, demonstrated enhanced susceptibility to the rubber hand illusion (RHI), which arises as a result of multisensory integration processes when a rubber hand and the participant's hidden real hand are stimulated in synchrony. Overall, differences in RHI experience between the BDD group and healthy and schizophrenia control groups (n = 17 in each) were not significant. RHI strength, however, was positively associated with body dissatisfaction and related tendencies. For the healthy control group, proprioceptive drift towards the rubber hand was observed following synchronous but not asynchronous stimulation, a typical pattern when inducing the RHI. Similar drifts in proprioceptive awareness occurred for the BDD group irrespective of whether stimulation was synchronous or not. These results are discussed in terms of possible abnormalities in visual processing and multisensory integration among people with BDD.
History
Journal
PLoS OneVolume
9Issue
6Article number
e99981Pagination
1 - 10Publisher
Public Library of ScienceLocation
San Francisco, CAPublisher DOI
eISSN
1932-6203Language
EnglishPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, Public Library of Science (PLOS)Usage metrics
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