The sense of agency shapes body schema and peripersonal space.

The sense of agency shapes body schema and peripersonal space.
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DOI:
10.1038/s41598-018-32238-z
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发表时间:
2018-09-14
期刊:
影响因子:
4.6
通讯作者:
Frassinetti F
Frassinetti F
中科院分区:
综合性期刊3区
文献类型:
--
作者:
D'Angelo M;di Pellegrino G;Seriani S;Gallina P;Frassinetti F

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身体图式是一种用于规划和执行动作的身体感觉运动表征,它是可塑的,因为它通过使用工具来达到远处的物体。对周边空间的修改,即,一个功能性的表示达到空间,通常共同出现的身体图式的变化。在这里,我们假设这种可塑性变化取决于通过自己的行为控制空间事件过程的经验,即,代理的感觉。在两个实验中,身体图式和近个人空间被评估之前和之后,参与者的代理感在一个虚拟的手被操纵。身体图式和近个人空间的扩大或缩小取决于虚拟手是在远空间,还是比真实的手更接近被试的身体。这些研究结果表明,身体图式和近个人空间之间的动态映射有意的身体动作和预期的结果在空间的影响。
Body schema, a sensorimotor representation of the body used for planning and executing movements, is plastic because it extends by using a tool to reach far objects. Modifications of peripersonal space, i.e., a functional representation of reach space, usually co-occur with body schema changes. Here, we hypothesized that such plastic changes depend on the experience of controlling the course of events in space trough one’s own actions, i.e., the sense of agency. In two experiments, body schema and peripersonal space were assessed before and after the participants’ sense of agency over a virtual hand was manipulated. Body schema and peripersonal space enlarged or contracted depending on whether the virtual hand was presented in far space, or closer to the participants’ body than the real hand. These findings suggest that body schema and peripersonal space are affected by the dynamic mapping between intentional body movements and expected consequences in space.
DOI: 10.1016/j.cognition.2017.04.005
发表时间: 2017-08-01
期刊: COGNITION
影响因子: 3.4
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