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Human Brain Mapping
Article . 2011 . Peer-reviewed
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Seeing touch in the somatosensory cortex: A TMS study of the visual perception of touch

Authors: BOLOGNINI, NADIA; ROSSETTI, ANGELA; MARAVITA, ANGELO; Miniussi, C.;

Seeing touch in the somatosensory cortex: A TMS study of the visual perception of touch

Abstract

AbstractRecent studies suggest the existence of a visuo‐tactile mirror system, comprising the primary (SI) and secondary (SII) somatosensory cortices, which matches observed touch with felt touch. Here, repetitive transcranial magnetic stimulation (rTMS) was used to determine whether SI or SII play a functional role in the visual processing of tactile events. Healthy participants performed a visual discrimination task with tactile stimuli (a finger touching a hand) and a control task (a finger moving without touching). During both tasks, rTMS was applied over either SI or SII, and to the occipital cortex. rTMS over SI selectively reduced subject performance for interpreting whether a contralateral visual tactile stimulus contains a tactile event, whereas SII stimulation impaired visual processing regardless of the tactile component. These findings provide evidence for a multimodal sensory‐motor system with mirror properties, where somatic and visual properties of action converge. SI, a cortical area traditionally viewed as modality‐specific, is selectively implicated in the visual processing of touch. These results are in line with the existence of a sensory mirror system mediating the embodied simulation concept. Hum Brain Mapp, 2011. © 2011 Wiley Periodicals, Inc.

Country
Italy
Keywords

Male, Brain Mapping, crossmodal; mirror neuron system; rTMS; primary somatosensory cortex; visual processing; tactile observation; sensorimotor, Somatosensory Cortex, TMS, somatosensory cortex, mirror system, Transcranial Magnetic Stimulation, Young Adult, Touch Perception, Crossmodal; Mirror neuron system; Primary somatosensory cortex; RTMS; Sensorimotor; Tactile observation; Visual processing;, Visual Perception, Humans, Female, Mirror Neurons

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    influence
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
73
Top 10%
Top 10%
Top 10%
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gold