Xu Zhenjie, Chen Hui, Wang Yingying
Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, Zhejiang, China.
Department of Psychology and Behavioral Sciences, Zhejiang University, Hangzhou 310028, Zhejiang, China.
Conscious Cogn. 2023 Aug;113:103556. doi: 10.1016/j.concog.2023.103556. Epub 2023 Aug 2.
Emerging evidence suggests a specialized mechanism supporting perceptual grouping of social entities. However, the stage at which social grouping is processed is unclear. Through four experiments, here we showed that participants' recognition of a visible face was facilitated by the presence of a second facing (thus forming a social grouping) relative to a nonfacing face, even when the second face was invisible. Using a monocular/dichoptic paradigm, we further found that the social grouping facilitation effect occurred when the two faces were presented dichoptically to different eyes rather than monocularly to the same eye, suggesting that social grouping relies on binocular rather than monocular neural channels. The above effects were not found for inverted face dyads, thereby ruling out the contribution of nonsocial factors. Taken together, these findings support the unconscious influence of social grouping on visual perception and suggest an early origin of social grouping processing in the visual pathway.
新出现的证据表明存在一种支持社会实体感知分组的特殊机制。然而，社会分组在哪个阶段进行处理尚不清楚。通过四项实验，我们在此表明，相对于非面对面的脸，当存在第二张面对面的脸（从而形成社会分组）时，即使第二张脸不可见，参与者对可见脸的识别也会得到促进。使用单眼/双眼视差范式，我们进一步发现，当两张脸以双眼视差的方式呈现给不同的眼睛而不是单眼呈现给同一只眼睛时，会出现社会分组促进效应，这表明社会分组依赖于双眼而非单眼神经通道。对于倒置的脸对未发现上述效应，从而排除了非社会因素的影响。综上所述，这些发现支持了社会分组对视觉感知的无意识影响，并表明社会分组处理在视觉通路中的早期起源。
