Sense of agency in joint action: influence of human and computer co-actors
Sense of agency in joint action: influence of human and computer co-actors
复制标题
DOI：
10.1007/s00221-011-2662-7
复制
发表时间：
2011-06-01
影响因子：
2
通讯作者：
Hall, Preston
中科院分区：
文献类型：
--
作者：
Obhi, Sukhvinder S.;Hall, Preston
有意约束是指自愿行动与其后果之间的时间缩短，被认为是对代理的一种隐含衡量。这种缩短与行动准备的基本过程有关，也受到运动后反馈的影响。在涉及两个人的联合行动任务中已经证明了有意的结合，但是不知道它是否发生在涉及与非人类伙伴一起工作的人类任务中。本实验研究了高水平反馈对代理体验的影响，以及在人机联合动作设置中是否会发生绑定。参与者参与了两个版本的行动任务，涉及另一个'代理'。在一个版本中，两个参与者（一个真正的参与者和一个同谋者）并排坐着，被一个帘子隔开，防止看到另一个人。在基线条件下，两名参与者都被指示进行自定步调的动作，并通过报告计算机屏幕上旋转时钟指针的位置来判断动作的时间。在其他基线条件下，参与者判断听觉音调的时间。在操作性条件下，参与者作出的行动和真正的参与者的行动后，200毫秒后，在每一个审判的音调。为了研究运动后信息对约束力和明确的机构判断的影响，在每次试验中都会提供一个颜色提示，告知参与者哪个人的动作引起了音调。在另一个版本的任务中，参与者与计算机配对，而不是人类合作者。运动后的信息影响了真正的参与者的明确的机构判断，但没有效果的故意约束，这总是发生。在人机版本中，参与者从未表现出约束力，即使他们明确判断自己的行为导致了这种语气。我们认为，人与人的伙伴关系的结果形成了一个新的“我们”的代理身份，但人机伙伴关系导致抑制的过程，调解前反射感的机构。
Intentional binding is the perceived shortening of the time between a voluntary action and its consequent effect and has been suggested as an implicit measure of agency. This shortening has been linked to processes underlying action preparation and is also affected by post-movement feedback. Intentional binding has been demonstrated in joint action tasks involving two humans, but it is unknown whether it occurs for tasks involving a human working alongside a non-human partner. This experiment investigated the influence of high-level feedback on the experience of agency and whether binding occurs in human-computer joint action settings. Participants were involved in two versions an action task involving another 'agent'. In one version, two participants (a genuine participant and a confederate) sat side by side, separated by a curtain that prevented vision of the other person. In baseline conditions, both participants were instructed to make a self-paced action and judge the time of the action by reporting the position of a rotating clock-hand on a computer screen. In other baseline conditions, participants judged the time of an auditory tone. In operant conditions, participants made actions and the genuine participant's action was followed 200 ms later by a tone on every trial. To examine the effect of post-movement information on binding and explicit agency judgments, a colour cue was presented on each trial informing participants about which person's action caused the tone. In another version of the task, participants were paired with a computer instead of a human co-actor. Post-movement information affected the genuine participant's explicit agency judgments but had no effect on intentional binding, which always occurred. In the human-computer version, participants never showed binding, even when they explicitly judged that their action had caused the tone. We suggest that human-human partnerships result in the formation of a new 'we' agentic identity, but that human-computer partnerships lead to inhibition of the processes that mediate the pre-reflective sense of agency.