{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T17:16:16Z","timestamp":1792862176411,"version":"4.5.0"},"reference-count":76,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2012,3,16]],"date-time":"2012-03-16T00:00:00Z","timestamp":1331856000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Human Brain Mapping"],"published-print":{"date-parts":[[2013,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Observing another person being touched activates our own somatosensory system. Whether the primary somatosensory cortex (S1) is also activated during the observation of passive touch, and which subregions of S1 are responsible for self\u2010 and other\u2010related observed touch is currently unclear. In our study, we first aimed to clarify whether observing passive touch without any action component can robustly increase activity in S1. Secondly, we investigated whether S1 activity only increases when touch of others is observed, or also when touch of one's own body is observed. We were particularly interested in which subregions of S1 are responsible for either process. We used functional magnetic resonance imaging at 7 Tesla to measure S1 activity changes when participants observed videos of their own or another's hand in either egocentric or allocentric perspective being touched by different pieces of sandpaper. Participants were required to judge the roughness of the different sandpaper surfaces. Our results clearly show that S1 activity does increase in response to observing passive touch, and that activity changes are localized in posterior but not in anterior parts of S1. Importantly, activity increases in S1 were particularly related to observing another person being touched. Self\u2010related observed touch, in contrast, caused no significant activity changes within S1. We therefore assume that posterior but not anterior S1 is part of a system for sharing tactile experiences with others. Hum Brain Mapp, 2013. \u00a9 2012 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/hbm.22031","type":"journal-article","created":{"date-parts":[[2012,3,16]],"date-time":"2012-03-16T05:17:16Z","timestamp":1331875036000},"page":"1882-1895","source":"Crossref","is-referenced-by-count":46,"title":["Judging roughness by sight\u2014A 7\u2010tesla fMRI study on responsivity of the primary somatosensory cortex during observed touch of self and 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