000206930 001__ 206930
000206930 005__ 20190317000134.0
000206930 0247_ $$2doi$$a10.1093/scan/nsv031
000206930 022__ $$a1749-5024
000206930 02470 $$2ISI$$a000365544900002
000206930 037__ $$aARTICLE
000206930 245__ $$aDistinct contributions of Brodmann areas 1 and 2 to body ownership
000206930 260__ $$bOxford University Press$$c2015$$aOxford
000206930 269__ $$a2015
000206930 300__ $$a11
000206930 336__ $$aJournal Articles
000206930 520__ $$aAlthough body ownership – i.e. the feeling that our bodies belong to us – modulates activity within the primary somatosensory cortex (S1), it is still unknown whether this modulation occurs within a somatotopically defined portion of S1. We induced an illusory feeling of ownership for another person's finger by asking participants to hold their palm against another person's palm and to stroke the two joined index fingers with the index and thumb of their other hand. This illusion (numbness illusion) does not occur if the stroking is performed by the other person. We combined this somatosensory paradigm with ultra-high field fMRI finger mapping to study whether illusory body ownership modulates activity within different finger-specific areas of S1. The results revealed that the numbness illusion is associated with activity in Broadman area (BA) 1 within the representation of the finger stroking the other person's finger and in BA 2 contralateral to the stroked finger. These results show that changes in bodily experience modulate the activity within certain subregions of S1, with a different topographical selectivity between the representations of the stroking and of the stroked hand, and reveal that the high degree of somatosensory specialization in S1 extends to bodily self-consciousness.
000206930 6531_ $$asomatotopy
000206930 6531_ $$aownership
000206930 6531_ $$aself
000206930 6531_ $$a touch
000206930 6531_ $$a7T fMRI
000206930 700__ $$0244850$$g158972$$uEcole Polytech Fed Lausanne, Sch Life Sci, Ctr Neuroprosthet, CH-1015 Lausanne, Switzerland$$aMartuzzi, Roberto
000206930 700__ $$0243732$$g176249$$aVan Der Zwaag, Wietske
000206930 700__ $$0244844$$g175936$$uEcole Polytech Fed Lausanne, Sch Life Sci, Brain Mind Inst, Lab Cognit Neurosci, CH-1015 Lausanne, Switzerland$$aDieguez, Sebastian
000206930 700__ $$0246654$$g229807$$uEcole Polytech Fed Lausanne, Sch Life Sci, Ctr Neuroprosthet, CH-1015 Lausanne, Switzerland$$aSerino, Andrea
000206930 700__ $$0243712$$g161735$$uEcole Polytech Fed Lausanne, Ctr Imagerie Biomed Lausanne, CH-1015 Lausanne, Switzerland$$aGruetter, Rolf
000206930 700__ $$g165806$$uEcole Polytech Fed Lausanne, Sch Life Sci, Ctr Neuroprosthet, CH-1015 Lausanne, Switzerland$$aBlanke, Olaf$$0240593
000206930 773__ $$j10$$tSocial Cognitive and Affective Neuroscience$$k11$$q1449-1459
000206930 8564_ $$uhttps://infoscience.epfl.ch/record/206930/files/Martuzzi_SCAN_2015.pdf$$zPublisher's version$$s668351$$yPublisher's version
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000206930 937__ $$aEPFL-ARTICLE-206930
000206930 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000206930 980__ $$aARTICLE