Mirror-touch synaesthesia changes representations of self-identity.
Mirror-touch synaesthesia changes representations of self-identity.
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DOI：
10.1016/j.neuropsychologia.2013.01.020
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发表时间：
2013-04
期刊：
影响因子：
2.6
通讯作者：
Tsakiris M
中科院分区：
文献类型：
--
作者：
Maister L;Banissy MJ;Tsakiris M
具有触觉通感（MTS）的人在观察另一个人被触摸时会体验到自己身体的触摸。虽然在MTS的体感处理已被广泛调查，在何种程度上观察到的触摸联觉的身体上的重新映射也可以导致自我的心理表征的变化仍然未知。我们采用了“贴脸错觉”的实验范式来量化联觉触摸导致的自我面孔识别的变化。MTS和控制参与者观察一个不熟悉的人的脸被触摸或没有，没有提供触摸参与者的脸。自我表征的变化进行了量化与自我人脸识别任务，使用“变形”的图像包含不同比例的参与者的脸和陌生的脸。这项任务是在暴露于另一张脸之前和之后进行的。虽然两组的自我识别性能是相似的，在预测试中，MTS个人表现出显着的变化，在自我识别性能后，观察触摸传递到另一张脸。具体来说，参与者最初认为包含等量自我和他人的图像在看到他人被触摸后更有可能被识别为自我。这些结果表明，观察触摸他人不仅eleveles一个有意识的触摸MTS的经验，但eleveles一个改变的心理表征的自我，模糊自我与他人的界限。这与自我的多感官解释是一致的，综合的多感官体验维持或更新自我表征。
Individuals with Mirror-Touch Synaesthesia (MTS) experience touch on their own bodies when observing another person being touched. Whilst somatosensory processing in MTS has been extensively investigated, the extent to which the remapping of observed touch on the synaesthete’s body can also lead to changes in the mental representation of the self remains unknown. We adapted the experimental paradigm of the ‘Enfacement Illusion’ to quantify the changes in self-face recognition as a result of synaesthetic touch. MTS and control participants observed the face of an unfamiliar person being touched or not, without delivering touch on the participant’s face. Changes in self-representation were quantified with a self-face recognition task, using ‘morphed’ images containing varying proportions of the participant’s face and the face of the unfamiliar other. This task was administered before and after the exposure to the other face. While self-recognition performance for both groups was similar during pre-test, MTS individuals showed a significant change in self-recognition performance following the observation of touch delivered to the other face. Specifically, the images that participants had initially perceived as containing equal quantities of self and other became more likely to be recognised as the self after viewing the other being touched. These results suggest that observing touch on others not only elicits a conscious experience of touch in MTS, but also elicits a change in the mental representation of the self, blurring self-other boundaries. This is consistent with a multisensory account of the self, whereby integrated multisensory experiences maintain or update self-representations.
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影响因子：
14.5
作者：
Blakemore, SJ;Bristow, D;Ward, J
通讯作者：
Ward, J
影响因子：
5.3
作者：
Banissy, Michael J.;Garrido, Lucia;Ward, Jamie
通讯作者：
Ward, Jamie
影响因子：
2
作者：
Banissy, Michael J.;Kadosh, Roi Cohen;Ward, Jamie
通讯作者：
Ward, Jamie
影响因子：
2.4
作者：
Northoff, Georg;Qin, Pengmin;Feinberg, Todd E.
通讯作者：
Feinberg, Todd E.
DOI：
10.1016/0926-6410(95)00038-0
发表时间：
1996-03-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
Rizzolatti, G;Fadiga, L;Fogassi, L
通讯作者：
Fogassi, L