Fig 2.

Proton MRS spectra from the midfrontal gray matter region in a control subject (age, 23 years) and an MDMA user (cumulative lifetime exposure, 200 tablets; age, 26 years). The spectrum in the MDMA user is representative for the whole group and shows a reduction in NAA levels, with Cr levels similar to those in the control subject. Note that MI levels are elevated in this specific MDMA user, although for the group as a whole, mean MI measures in MDMA users did not statistically differ from those of control subjects.