Dataset for "The relevance to social interaction modulates bistable biological-motion perception"

This dataset comprises of the data presented in the publication "The relevance to social interaction modulates bistable biological-motion perception" (Han et al., 2021) and the codes for data analyses.Social interaction, the process through which individuals act and react toward each other, is arguably the building block of society. As the very first step for successful social interaction, we need to derive the orientation and immediate social relevance of other people: a person facing toward us is much more likely to initiate communications than a person who is back to us. Reversely, however, it remains elusive whether the relevance to social interaction modulates how we perceive the other's orientation. Here, we adopted the bistable point-light walker (PLW) which is ambiguous in its in-depth orientation. Participants were asked to report the orientation (facing the viewer or facing away from the viewer) of the PLWs. Three factors that are task-irrelevant but critically pertinent to social interaction, the distance, the speed, and the size of the PLW, were systematically manipulated. The nearer a person is, the more likely it initiates interactions with us. The larger a person is, the larger influence it may exert. The faster a person is, the shorter time is left for us to respond. Results revealed that participants tended to perceive the PLW as facing them more frequently than facing away when the PLW was nearer, faster, or larger. These same factors produced different patterns of effects on a non-biological rotating cylinder. These findings demonstrate that the relevance to social interaction modulates the visual perception of biological motion and highlight that bistable biological motion perception not only reflects competitions of low-level features but is also strongly linked to high-level social cognition.For details of the dataset, please see "data illustration.pdf" in the root directory after unzipping. For details of the study, please refer to:Han, Q., Wang, Y., Jiang, Y., & Bao, M. (2021). The relevance to social interaction modulates bistable biological-motion perception. Cognition, 209, 104584. https://doi.org/10.1016/j.cognition.2021.104584.

本数据集包含发表于论文"《社会互动相关性调控双稳态生物运动知觉》"（Han等人，2021）中的实验数据，以及配套的数据分析代码。社会互动是个体间相互作用与反应的过程，堪称社会构成的基石。作为成功社会互动的首要环节，我们需要识别他人的朝向与即时社会相关性：相较于背向我们的个体，面向我们的个体更易发起交流。然而与之相反的是，社会互动相关性是否会调控我们对他人朝向的知觉，这一问题仍未明晰。本研究采用了在深度朝向上具有歧义的双稳态点光步行者（point-light walker, PLW）作为实验刺激，要求被试报告PLW的朝向（面向观察者或背向观察者）。我们系统操控了三个与实验任务无关但与社会互动高度相关的因素：PLW的距离、运动速度与体型大小。个体距离越近，发起互动的可能性越高；体型越大，对我们的影响可能越强；运动速度越快，我们可用于反应的时间越短。实验结果显示，当PLW距离更近、运动速度更快或体型更大时，被试更倾向于将其知觉为面向自身。上述相同因素对非生物旋转圆柱体的知觉并未产生此类效应模式。本研究结果表明，社会互动相关性可调控生物运动的视觉知觉，同时揭示双稳态生物运动知觉不仅反映低层次特征的竞争过程，还与高层次社会认知存在紧密关联。数据集详细信息请查看解压后根目录下的"data illustration.pdf"文件。本研究的详细内容可参考：Han, Q., Wang, Y., Jiang, Y., & Bao, M. (2021). 社会互动相关性调控双稳态生物运动知觉. 《认知》(Cognition), 209, 104584. https://doi.org/10.1016/j.cognition.2021.104584.