Fig 2.

Time courses of stimulus perception and global stimulus-evoked neuromagnetic activity. Time course of stimulus perception was continuously rated by thumb–index finger span of the left hand while the right hand was stimulated. One hundred percent is defined as maximal distance between fingers corresponding to worst tolerable pain. Time course of stimulus-evoked neuromagnetic activity was calculated as mean rectified signal of all sensors corrected to baseline. Rating and MEG signals were recorded separately under the same experimental conditions, except that during the MEG recordings no rating was required. Data were averaged across 4 and 10 subjects, respectively. Shaded areas indicate SEM.