Fig. 2
From: Adaptation of cortical activity to sustained pressure stimulation on the fingertip
Cortical activation during pressure stimulation. Cortical activation patterns were investigated during 3 (a), 9 (b), and 15 s (c) pressure stimulation (group analysis with 21 participants, p (FWE) < 0.05, k > 5, bar: F-statistics). Significantly activated clusters at the contralateral postcentral gyrus and bilateral rolandic operculum were consistently appeared during 3 s stimulation as well as during the first stimulus segment (0–3 s) of 9 and 15 s stimulation (cortical activation for tactile perception). During 15 s pressure stimulation, activated regions became localized in the contralateral postcentral gyrus (c)