Galazka Martyna A, Roché Laëtitia, Nyström Pär, Falck-Ytter Terje
Uppsala Child and Babylab, Department of Psychology, Uppsala University, Uppsala, Sweden.
Institut National de la Santé et de la Recherche Médicale (INSERM), Unit 930, Tours, France; University François-Rabelais of Tours, Unit 930 'Imaging et Brain' - Team 1 Autism, Tours, France.
PLoS One. 2014 Nov 19;9(11):e112432. doi: 10.1371/journal.pone.0112432. eCollection 2014.
Do infants perceive other people's interactions by means of a mechanism that integrates biological motion information across the observed individuals? In support of this view, the present study demonstrates that infants (N = 28, Age = 14 months) discriminate between point light displays representing disrupted and non-disrupted interactions between people, even though the two interaction types are identical at the level of individual point light agents. Moreover, a second experiment (sample 2: N = 28, Age = 14 months) indicated that visual preference in this context is influenced by an audiovisual integration processes that takes into account the presence of an interaction between people. All these results were found exclusively for upright displays--when stimuli were shown upside-down (disrupting biological motion processing), performance was random. Collectively, these findings point to an important role for biological motion in social perception in human infants.
婴儿是否通过一种整合观察到的个体间生物运动信息的机制来感知他人的互动？为支持这一观点，本研究表明，婴儿（N = 28，年龄 = 14个月）能够区分代表人们之间被打乱和未被打乱互动的点光显示，尽管这两种互动类型在个体点光元素层面是相同的。此外，第二个实验（样本2：N = 28，年龄 = 14个月）表明，在这种情况下的视觉偏好受视听整合过程影响，该过程会考虑人与人之间互动的存在。所有这些结果仅在直立显示时被发现——当刺激以倒置方式呈现时（干扰生物运动处理），表现是随机的。总体而言，这些发现表明生物运动在人类婴儿的社会感知中起着重要作用。
