“sense of self ownership” is one of the things that makes the right insula light up; (or visa versa); I started noticing studies involving the “feel of soft things” and light skin stroking; one of the studies (not this one) started looking a little suspicious (inner thigh stroking of female college students? really bro?) but this one’s a little safer; palm and arm but it has the same results.
_Seeking pleasant touch: neural correlates of behavioral preferences for skin stroking_
Both arm and palm runs were included in the general linear model. Results revealed activation in right dlPFC (35, 39, 6) and right posterior insula (29, −26, 9).
https://www.frontiersin.org/articles/10.3389/fnbeh.2015.00008/full