抑制解除还是再抑制:媒体形象对限制性饮食者进食的影响
Disinhibition or Reinhibition?The Effect of Media Image on Restrained Eaters'Actual Food Intake
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摘要: 主要考察了媒体形象对成功的限制性饮食者和失败的限制性饮食者进食行为的影响。通过控制屏幕比例来操纵媒体中人物的体形,考察了66名女性大学生在瘦体形条件下和正常体形条件下进食量的差异。结果表明,接触媒体中的瘦形象导致失败的限制性饮食者的过量进食行为;相反则导致了成功的限制性饮食者的抑制性进食行为。结果说明媒体形象对成功的限制性饮食者和失败的限制性饮食者饮食行为的影响是有差异的,解释了已有研究之间的不一致。Abstract: In the present experiment ,normal‐weight female students (N=66) were divided into successful restraint eaters and unsuccessful restraint eaters and exposed to a 30‐min movie clip featuring beautiful girls .After the end of the movie ,the participants were asked to complete several questionnaires about the manipulation checks and their actual food intake during movie‐watching was examined afterwards .An in‐teraction was found between screen size and restrained eating on actual food intake .Successful restraint eaters tended to eat less in the normal size condition compared to the average model condition ,w hereas un‐successful restraint eaters ate more in the thin model condition compared to the broad size condition .The findings suggested that successful and unsuccessful restrained eaters responded differentially w hen exposed to the thin model on the television .Future experimental studies on restricted eating should employ varied methodological strategies to elucidate the neural bases related to processing body size cues and fully identi‐fy the associated cognitive mechanisms .
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