Figure 1.
a) The illusion was induced by synchronously stroking the mannequin body and the corresponding part of the participant’s body. Participant view through the head mounted display of the male mannequin in the small (b) and large (c) body conditions. Both subjects in the figure have given written informed consent, as outlined in the PLOS consent form, to publication of their photograph.
Figure 2.
Median illusion and control questionnaire scores for both female (a) and male (b) participants. Greater agreement was found following synchronous (open bars) compared to asynchronous (filled bars) stroking for the illusion but not control questions. Error bars show interquartile range. c) Questionnaire items used to calculate control and illusion scores. Participants gave numeric responses from +3 (strongly agree) to −3 (strongly disagree). d) Mean skin conductance response (SCR) to the knife threatening the mannequin. Greater amplitudes were found following synchronous stroking. Error bars show standard errors. * = p<.05, ** = p<.01.
Table 1.
totals and statistics for full sample and males and females for age body mass index (BMI), self-esteem and eating disorder psychopathology.
Figure 3.
Medians of pre and post-illusion hip judgments for the large (a) and small (b) body conditions Error bars show interquartile range. Medians of pre and post-illusion body satisfaction (BISS) scores for the large (c) and small (b) body conditions. Error bars show interquartile range. * = p<.05, ** = p<.01 Scatter charts of change in body satisfaction (post – pre-illusion BISS scores) and eating disorder psychopathology (EDE-Q score) for large (e) and small (f) body conditions. Scores of male participants are depicted by open triangles and females by filled circles. A significant relationship was only found for the large body condition (p = .012).