Angle Orthod. 2018 May;88(3):329-337. doi: 10.2319/080717-528.1. Epub 2018 Jan 29.
To examine the changes in visual attention influenced by facial angles and smile during the evaluation of facial attractiveness.
Thirty-three young adults were asked to rate the overall facial attractiveness (task 1 and 3) or to select the most attractive face (task 2) by looking at multiple panel stimuli consisting of 0°, 15°, 30°, 45°, 60°, and 90° rotated facial photos with or without a smile for three model face photos and a self-photo (self-face). Eye gaze and fixation time (FT) were monitored by the eye-tracking device during the performance. Participants were asked to fill out a subjective questionnaire asking, "Which face was primarily looked at when evaluating facial attractiveness?"
When rating the overall facial attractiveness (task 1) for model faces, FT was highest for the 0° face and lowest for the 90° face regardless of the smile ( P < .01). However, when the most attractive face was to be selected (task 2), the FT of the 0° face decreased, while it significantly increased for the 45° face ( P < .001). When facial attractiveness was evaluated with the simplified panels combined with facial angles and smile (task 3), the FT of the 0° smiling face was the highest ( P < .01). While most participants reported that they looked mainly at the 0° smiling face when rating facial attractiveness, visual attention was broadly distributed within facial angles.
Laterally rotated faces and presence of a smile highly influence visual attention during the evaluation of facial esthetics.
探讨面部角度和微笑对面部吸引力评估中视觉注意的变化。
33 名年轻成年人被要求通过观看多个面板刺激物来评估整体面部吸引力（任务 1 和 3）或选择最有吸引力的面孔（任务 2），这些面板刺激物由 0°、15°、30°、45°、60°和 90°旋转的带有或不带有微笑的面部照片以及三张模特面部照片和一张自拍照（自拍照）组成。在执行任务期间，通过眼动追踪设备监测眼动和注视时间（FT）。参与者被要求填写一份主观问卷，询问“在评估面部吸引力时，主要看哪张脸？”
当对模特的整体面部吸引力（任务 1）进行评分时，无论微笑与否，FT 最高的是 0°面，最低的是 90°面（P<.01）。然而，当要选择最有吸引力的面孔时（任务 2），0°面的 FT 减少，而 45°面的 FT 显著增加（P<.001）。当使用结合面部角度和微笑的简化面板评估面部吸引力（任务 3）时，0°微笑面的 FT 最高（P<.01）。虽然大多数参与者报告说在评估面部吸引力时主要看 0°微笑面，但视觉注意力在面部角度内广泛分布。
侧面旋转的面部和微笑的存在对面部美学评估中的视觉注意力有很大影响。
