Department of Linguistics, Cognitive Science and Semiotics, Aarhus University, Aarhus, Denmark.
Interacting Minds Centre, Aarhus University, Aarhus, Denmark.
Sci Rep. 2019 Oct 18;9(1):14967. doi: 10.1038/s41598-019-51134-8.
Human spatial representations are shaped by affordances for action offered by the environment. A prototypical example is the organization of space into peripersonal (within reach) and extrapersonal (outside reach) regions, mirrored by proximal (this/here) and distal (that/there) linguistic expressions. The peri-/extrapersonal distinction has been widely investigated in individual contexts, but little is known about how spatial representations are modulated by interaction with other people. Is near/far coding of space dynamically adapted to the position of a partner when space, objects, and action goals are shared? Over two preregistered experiments based on a novel interactive paradigm, we show that, in individual and social contexts involving no direct collaboration, linguistic coding of locations as proximal or distal depends on their distance from the speaker's hand. In contrast, in the context of collaborative interactions involving turn-taking and role reversal, proximal space is shifted towards the partner, and linguistic coding of near space ('this' / 'here') is remapped onto the partner's action space.
人类的空间表征是由环境提供的行动可能性塑造的。一个典型的例子是将空间组织为近体（可触及的）和远体（不可及的）区域，这与近端（这个/这里）和远端（那个/那里）的语言表达相对应。近/远体区分已在个体情境中得到广泛研究，但对于空间表征如何受到与他人互动的影响知之甚少。当空间、物体和动作目标共享时，空间的近/远编码是否会根据伙伴的位置进行动态调整？在两个基于新颖交互范式的预先注册实验中，我们表明，在不涉及直接协作的个体和社交情境中，语言对位置的近端或远端编码取决于它们与说话者手的距离。相比之下，在涉及轮流和角色转换的协作互动情境中，近端空间会向伙伴移动，近空间（“这个”/“这里”）的语言编码会重新映射到伙伴的动作空间。
