The Emotional and Attentional Impact of Exposure to One’s Own Body in Bulimia Nervosa: A Physiological View
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Other documents of the author: Ortega-Roldán, Blanca; Rodríguez-Ruiz, Sonia; Perakakis, Pandelis; Fernández-Santaella, M. Carmen; Vila, Jaime
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Title
The Emotional and Attentional Impact of Exposure to One’s Own Body in Bulimia Nervosa: A Physiological ViewAuthor (s)
Date
2014Publisher
Public Library of ScienceISSN
1932-6203Bibliographic citation
Ortega-Roldán B, Rodríguez-Ruiz S, Perakakis P, Fernández-Santaella MC, Vila J (2014) The Emotional and Attentional Impact of Exposure to One's Own Body in Bulimia Nervosa: A Physiological View. PLoS ONE 9(7): e102595. doi:10.1371/journal.pone.0102595Type
info:eu-repo/semantics/articlePublisher version
http://www.plosone.org/article/fetchObject.action?uri=info:doi/10.1371/journal.p ...Version
info:eu-repo/semantics/publishedVersionAbstract
Background: Body dissatisfaction is the most relevant body image disturbance in bulimia nervosa (BN). Research has shown
that viewing one’s own body evokes negative thoughts and emotions in individuals with BN. ... [+]
Background: Body dissatisfaction is the most relevant body image disturbance in bulimia nervosa (BN). Research has shown
that viewing one’s own body evokes negative thoughts and emotions in individuals with BN. However, the
psychophysiological mechanisms involved in this negative reaction have not yet been clearly established. Our aim was
to examine the emotional and attentional processes that are activated when patients with BN view their own bodies.
Method: We examined the effects of viewing a video of one’s own body on the physiological (eye-blink startle, cardiac
defense, and skin conductance) and subjective (pleasure, arousal, and control ratings) responses elicited by a burst of
110 dB white noise of 500 ms duration. The participants were 30 women with BN and 30 healthy control women. The
experimental task consisted of two consecutive and counterbalanced presentations of the auditory stimulus preceded,
alternatively, by a video of the participant’s own body versus no such video.
Results: The results showed that, when viewing their own bodies, women with BN experienced (a) greater inhibition of the
startle reflex, (b) greater cardiac acceleration in the first component of the defense reaction, (c) greater skin conductance
response, and (d) less subjective pleasure and control combined with greater arousal, compared with the control
participants.
Conclusion: Our findings suggest that, for women with BN, peripheral-physiological responses to self-images are
dominated by attentional processes, which provoke an immobility reaction caused by a dysfunctional negative response to
their own body [-]
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PLoS ONE, July 2014, Volume 9, Issue 7, e102595Rights
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Except where otherwise noted, this item's license is described as © 2014 Ortega-Roldán et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.