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Visual motion assists in social cognition [Psychological and Cognitive Sciences]
Proceedings of the National Academy of Sciences of the United States of America ( IF 11.1 ) Pub Date : 2020-12-15 , DOI: 10.1073/pnas.2021325117
Arvid Guterstam 1, 2 , Michael S. A. Graziano 1
Affiliation  

Recent evidence suggests a link between visual motion processing and social cognition. When person A watches person B, the brain of A apparently generates a fictitious, subthreshold motion signal streaming from B to the object of B’s attention. These previous studies, being correlative, were unable to establish any functional role for the false motion signals. Here, we directly tested whether subthreshold motion processing plays a role in judging the attention of others. We asked, if we contaminate people’s visual input with a subthreshold motion signal streaming from an agent to an object, can we manipulate people’s judgments about that agent’s attention? Participants viewed a display including faces, objects, and a subthreshold motion hidden in the background. Participants’ judgments of the attentional state of the faces was significantly altered by the hidden motion signal. Faces from which subthreshold motion was streaming toward an object were judged as paying more attention to the object. Control experiments showed the effect was specific to the agent-to-object motion direction and to judging attention, not action or spatial orientation. These results suggest that when the brain models other minds, it uses a subthreshold motion signal, streaming from an individual to an object, to help represent attentional state. This type of social-cognitive model, tapping perceptual mechanisms that evolved to process physical events in the real world, may help to explain the extraordinary cultural persistence of beliefs in mind processes having physical manifestation. These findings, therefore, may have larger implications for human psychology and cultural belief.



中文翻译:

视觉运动有助于社会认知[心理与认知科学]

最近的证据表明视觉动作处理和社会认知之间的联系。当人A观看人B时,A的大脑显然会产生一个虚构的,低于阈值的运动信号,该信号从B流到B的注意力对象。这些先前的研究是相关的,无法为虚假运动信号建立任何功能性作用。在这里,我们直接测试了亚阈值运动处理是否在判断其他人的注意力方面发挥了作用。我们问,如果我们使用从代理到对象的亚阈值运动信号来污染人们的视觉输入,是否可以操纵人们对代理的注意力的判断?参加者查看了包括面部,对象和隐藏在背景中的亚阈值运动的显示。隐藏的运动信号大大改变了参与者对面部注意状态的判断。亚阈值运动从其流向对象的面部被判断为对该对象更加关注。对照实验表明,这种效果是特定于主体到对象的运动方向的,并且可以判断注意力,而不是动作或空间方向。这些结果表明,当大脑为其他人建模时,它会使用一个阈值以下的运动信号,该信号从一个人流到一个对象,以帮助表示注意力状态。这种类型的社会认知模型利用了演变为处理现实世界中的物理事件的感知机制,可以帮助解释对具有物理表现形式的思维过程中信念的非凡的文化持久性。因此,这些发现

更新日期:2020-12-16
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