Department of Clinical Psychology and Psychobiology, University of Barcelona, Barcelona, Spain.
Department of Cognition, Development and Education Psychology, University of Barcelona, Barcelona, Spain.
Int J Eat Disord. 2019 Oct;52(10):1181-1190. doi: 10.1002/eat.23136. Epub 2019 Jul 13.
In the attentional bias (AB) phenomenon, eating disorder (ED) patients show a tendency to pay more attention to self-attributed unattractive body parts than to other body parts. However, little research has focused on gender differences in body-related attention, controlling for body dissatisfaction (BD). This study aimed to assess gender differences in AB toward specific weight- or nonweight-related body parts using a virtual reality (VR)-based embodiment technique and an eye-tracking AB assessment.
Forty-five women (23 with high BD and 22 with low BD) and 40 men (20 with high BD and 20 with low BD) were subsequently embodied in three virtual avatars, the first based on the participant's actual measurements, the second being larger than the participant, and the third being the same as the first avatar. The number of fixations and complete fixation time on weight-related areas of interest (W-AOIs) and nonweight-related areas of interest (NW-AOIs) were recorded for the three assessment time/avatars.
The results showed a statistically significant interaction between gender and time for total fixation time and number of fixations (p < .05). BD levels did not significantly affect the results. Overall, women paid more attention to the W-AOIs than men, who in turn paid more attention to the NW-AOIs. Furthermore, preliminary evidence was found for an AB toward muscular-related AOIs among men.
This study provides new information about gender differences and BD in gaze pattern behaviors. Future psychological ED assessments and treatments could take advantage of the possibilities of VR while real-time AB is objectively measured.
在注意偏向(AB)现象中,饮食失调(ED)患者表现出一种倾向,即比起其他身体部位,他们更容易关注与自身相关的不吸引人的身体部位。然而,很少有研究关注与身体相关的注意的性别差异,同时控制身体不满(BD)。本研究旨在使用基于虚拟现实(VR)的体现技术和眼动追踪 AB 评估来评估特定体重相关或非体重相关身体部位的 AB 中存在的性别差异。
随后有 45 名女性(23 名高 BD,22 名低 BD)和 40 名男性(20 名高 BD,20 名低 BD)被融入到三个虚拟化身中,第一个基于参与者的实际测量值,第二个比参与者大,第三个与第一个化身相同。在三个评估时间/化身中,记录了对体重相关兴趣区域(W-AOI)和非体重相关兴趣区域(NW-AOI)的注视点数量和总注视时间。
结果显示,总注视时间和注视点数量在性别和时间之间存在统计学上的显著交互作用(p < 0.05)。BD 水平对结果没有显著影响。总体而言,女性比男性更关注 W-AOI,而男性则更关注 NW-AOI。此外,初步证据表明男性存在对肌肉相关 AOIs 的 AB。
本研究提供了关于性别差异和 BD 在注视模式行为方面的新信息。未来的心理 ED 评估和治疗可以利用 VR 的可能性,同时客观地测量实时 AB。