Both your intention and mine are reflected in the kinematics of my reach-to-grasp movement
Both your intention and mine are reflected in the kinematics of my reach-to-grasp movement
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DOI：
10.1016/j.cognition.2007.05.004
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发表时间：
2008-02-01
期刊：
影响因子：
3.4
通讯作者：
Castiello, Umberto
中科院分区：
文献类型：
--
作者：
Becchio, Cristina;Sartori, Luisa;Castiello, Umberto
本研究的目的是确定在社会环境中运动学参数是否受到参与者姿态的影响。特别是，我们考虑了两种基本的社会认知模式，即合作和竞争。天真的受试者被要求与一个合作伙伴（一个职业女演员）合作或竞争，其态度可能与任务指示一致或不一致。因此，在一致的条件下，受试者与表现出一致的合作或竞争态度的伙伴合作或竞争。在不一致试验中，被试者的态度明显与指示相反：对合作任务采取竞争态度，对竞争任务采取合作态度。我们假设这种伙伴的态度和指令的不匹配会产生一种意想不到的社会情境，影响代理执行的伸手抓握运动的运动学。如果合作和竞争的运动模式对伴侣的态度敏感，那么我们应该期望不一致的态度有潜力决定运动模式的逆转。结果表明，在不一致实验中，根据模型行为人的不一致态度对不一致条件下特定的合作与竞争运动模式进行了修正。我们认为，这种“态度”传染是一个复杂系统的一部分，它使我们能够推断出在社会环境中行动的意图。(C) 2007 Elsevier B.V.版权所有
The aim of the present study is to ascertain whether in a social context the kinematic parameters are influenced by the stance of the participants. In particular, we consider two basic modes of social cognition, namely cooperation and competition. Naive subjects were asked either to cooperate or to compete with a partner (a professional female actor), whose attitude could be either congruent or incongruent with the task instructions. Thus, on congruent conditions, subjects cooperated or competed with a partner showing a congruent cooperative or competitive attitude. On incongruent trials, the partner assumed an attitude that was manifestly in contrast with the instruction: competitive for the cooperative task, cooperative for the competitive task. We hypothesized that this mismatch between partner's attitude and instruction would produce a sort of unexpected social situation, affecting the kinematics of reach-to-grasp movement performed by the agents. If cooperative and competitive kinematic patterns are sensitive to the partner's attitude, then we should expect that an incongruent attitude have the potency to determine a reversal in kinematic patterning. Results revealed that for the incongruent trials the specific kinematic patterns for cooperation and competition found for the congruent conditions where modified according to the incongruent attitude assumed by the model actor. We suggest that this 'attitude' contagion is part of a sophisticated system that allows us to infer about the intention to act in a social context. (C) 2007 Elsevier B.V. All rights reserved.