Figure 3
From: Encoding of menstrual pain experience with theta oscillations in women with primary dysmenorrhea
Correlation between cortical theta activity and pain experience in PDM group. The left panels of (a) and (b) illustrate the brain regions showing an increase in theta activity, as derived from between-group comparisons (as listed in Table 3). The pain rating scores are positively correlated with theta activity in the right parahippocampal gyrus during the painful state (MENS) (right panel in (a)) and at the left middle cingulate gyrus during the pain-free state (POV) (right panel in (b)). PDM, primary dysmenorrhea; CON, healthy controls; MENS, menstruation; POV, periovulatory; PRI, pain rating index.
