"This study was technically novel because it used a noninvasive brain imaging technique, MRS, to measure brain GABA levels,"
John Krystal, M.D., chair of psychiatry at Yale University and editor of Biological Psychiatry, told Psychiatric News. "GABA levels are low relative to other brain chemicals that potentially confound its measurement. Measuring GABA levels in
the brain with spectroscopy is a bit like measuring the number of shirts in a pile of laundry. Thus, the ability to reliably
measure GABA levels in the frontal cortex, as Dr. Boy and his colleagues have done, is a technical achievement."