School of Health Sciences, The University of Notre Dame Australia, Fremantle, Australia.
Institute for Health Research, The University of Notre Dame Australia, Fremantle, Australia.
Perception. 2024 Oct;53(10):688-703. doi: 10.1177/03010066241263052. Epub 2024 Aug 1.
Body image is a conscious representation of the body, encompassing how our body feels to us. Body image can be measured in a variety of ways, including metric and depictive measures. This study sought to assess body image at the trunk by investigating, and comparing, a metric and depictive measure. Sixty-nine healthy participants estimated their thorax, waist, and hip width by externally referencing mechanical calipers. Participants were also asked to select the true image of their trunk from a random display of nine images containing the true image and incrementally shrunken or enlarged images. Participants demonstrated evidence of thorax and waist width overestimation in the width perception task, with no evidence for hip misestimation. For the picture mapping task, the majority of participants were inaccurate. In participants who were inaccurate, approximately equal proportions underestimated and overestimated their trunk width. The two tasks were found to be independent of each other. Distortions, or inaccuracies, were apparent in a metric measure, and inaccuracies also present in a depictive measure, of body image at the trunk for healthy participants. An overestimation bias was apparent in the metric, but not depictive, task. No relationship was found between tasks..
身体意象是对身体的有意识的表现，包括我们对身体的感觉。身体意象可以通过多种方式进行测量，包括度量和描述性测量。本研究旨在通过调查和比较度量和描述性测量来评估躯干的身体意象。69 名健康参与者通过外部参考机械卡尺来估计他们的胸廓、腰部和臀部宽度。还要求参与者从随机显示的九个图像中选择真实的躯干图像，这些图像包含真实图像和逐步缩小或放大的图像。参与者在宽度感知任务中表现出胸廓和腰围高估的证据，没有臀部估计错误的证据。对于图片映射任务，大多数参与者都不准确。在不准确的参与者中，大约相等的比例低估和高估了他们的躯干宽度。发现这两个任务是相互独立的。在健康参与者的躯干的身体意象的度量测量中存在扭曲或不准确，在描述性测量中也存在不准确。在度量任务中出现了高估偏差，但在描述性任务中没有。两个任务之间没有发现关系。
