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EnglishRecent 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.
Seeing touch in the somatosensory cortex: a TMS study of the visual perception of touch / N., Bolognini; A., Rossetti; A., Maravita; Miniussi, Carlo. - In: HUMAN BRAIN MAPPING. - ISSN 1065-9471. - 2011, 32:12(2011), pp. 2104-2114.
| Titolo: | Seeing touch in the somatosensory cortex: a TMS study of the visual perception of touch |
| Autori: | N., Bolognini; A., Rossetti; A., Maravita; Miniussi, Carlo |
| Autori Unitn: | |
| Titolo del periodico: | HUMAN BRAIN MAPPING |
| Anno di pubblicazione: | 2011 |
| Numero e parte del fascicolo: | 12 |
| Codice identificativo Scopus: | 2-s2.0-81055140615 |
| Codice identificativo ISI: | WOS:000297918500007 |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/hbm.21172 |
| Handle: | http://hdl.handle.net/11572/145578 |
| Citazione: | Seeing touch in the somatosensory cortex: a TMS study of the visual perception of touch / N., Bolognini; A., Rossetti; A., Maravita; Miniussi, Carlo. - In: HUMAN BRAIN MAPPING. - ISSN 1065-9471. - 2011, 32:12(2011), pp. 2104-2114. |
| Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| HBM_Bolognini_11.pdf | Post-print referato (Refereed author’s manuscript) | Tutti i diritti riservati (All rights reserved) | Open Access Visualizza/Apri |
http://hdl.handle.net/11572/145578
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