Institut des Sciences Cognitives-Marc Jeannerod, Unité Mixte de Recherche (UMR) 5229, Centre National de la Recherche Scientifique (CNRS).
Université Claude Bernard Lyon 1.
Psychol Sci. 2019 Oct;30(10):1483-1496. doi: 10.1177/0956797619867295. Epub 2019 Sep 18.
Humans can effectively search visual scenes by spatial location, visual feature, or whole object. Here, we showed that visual search can also benefit from fast appraisal of relations between individuals in human groups. Healthy adults searched for a facing (seemingly interacting) body dyad among nonfacing dyads or a nonfacing dyad among facing dyads. We varied the task parameters to emphasize processing of targets or distractors. Facing-dyad targets were more likely to recruit attention than nonfacing-dyad targets (Experiments 1, 2, and 4). Facing-dyad distractors were checked and rejected more efficiently than nonfacing-dyad distractors (Experiment 3). Moreover, search for an individual body was more difficult when it was embedded in a facing dyad than in a nonfacing dyad (Experiment 5). We propose that fast grouping of interacting bodies in one attentional unit is the mechanism that accounts for efficient processing of dyads within human groups and for the inefficient access to individual parts within a dyad.
人类可以通过空间位置、视觉特征或整体对象有效地搜索视觉场景。在这里，我们表明，视觉搜索也可以受益于对人类群体中个体之间关系的快速评估。健康成年人在非面对的对偶体中搜索面对（似乎相互作用）的身体对偶体，或在面对的对偶体中搜索非面对的对偶体。我们改变了任务参数，以强调对目标或干扰项的处理。面对的对偶体目标比非面对的对偶体目标更容易引起注意（实验 1、2 和 4）。面对的对偶体干扰项比非面对的对偶体干扰项更有效地被检查和拒绝（实验 3）。此外，当个体身体嵌入面对的对偶体中时，搜索个体身体变得更加困难（实验 5）。我们提出，快速将相互作用的身体分组到一个注意力单元中是解释在人类群体中高效处理对偶体以及在对偶体中低效访问个体部分的机制。
