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首页> 外文期刊>Cortex: A Journal Devoted to the Study of the Nervous System and Behavior >Influence of the body schema on mirror-touch synesthesia
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Influence of the body schema on mirror-touch synesthesia

机译：身体模式对镜触义义的影响

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Individuals with mirror-touch synesthesia (MTS) report feeling touch on their own body when seeing someone else being touched. We examined how the body schema an online representation of body position in space is involved in mapping touch from a viewed body to one's own body. We showed 45 mirror-touch synesthetes videos of a hand being touched, varying the location of the viewed touch by hand (left, right), skin surface (palmar, dorsal) and finger (index, ring). Participant hand posture was either congruent or incongruent with the posture of the viewed hand. After seeing the video, participants were asked to report whether they felt touch on their own body and, if so, the intensity and location of their percepts. We found that participants reported more frequent and more veridical (i.e., felt at the same somatotopic location as the viewed touch) mirror-touch percepts on posturally congruent versus posturally incongruent trials. Furthermore, participant response patterns varied as a function of postural congruence. Some participants consistently felt sensations on the hand surface that was stimulated in the video even if their hands were in the opposite posture. Other participants' responses were modulated based on their own hand position, such that percepts were more likely to be felt on the upright, plausible hand surface in the posturally incongruent condition. These results provide evidence that mapping viewed touch to one's own body involves an on-line representation of body position in space. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在看到被触及的人时，有镜面触摸髁（MTS）报告在自己的身体上感觉触摸。我们检查了身体模式如何在空间中的身体位置在线表示涉及从被观察的身体到一个人自己的身体绘制触摸。我们展示了45个镜面触控曲目，手工触摸，用手（左，右），皮肤表面（Palmar，Dorsal）和手指（指数，环）而改变所观看的触摸的位置。参与者手势是一致或不一致的姿势。在查看视频后，请参与者报告他们是否触摸自己的身体，如果是的话，他们的灵感和位置。我们发现参与者报告了更频繁，更明显的（即，在与观察触摸的相同躯体位置感觉到的镜头地点相同）镜面 - 触摸感染者在后一批与后期不一致的试验中。此外，参与者的响应模式随着姿势一致而变化。一些参与者在视频中刺激的手表面上持续感受到的感觉，即使他们的手在相反的姿势中也是如此。其他参与者的反应是根据自己的手势调制的，使得在后期不一致的情况下，更有可能感受到直立，可粘性的手表面上的感觉。这些结果提供了证据，即映射对自己的身体的绘制触摸涉及空间中身体位置的在线表示。 （c）2016 Elsevier Ltd.保留所有权利。

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