although the alcoholics and controls had similar demographic features and mean brain weights , brains from the alcoholic group showed mild but consistent atrophy of the cerebral cortex ( 2.5 % to 4.2 % reductions in cross-sectional area at all five levels ) , moderate atrophy of cerebral white matter ( 6.1 % to 17.5 % reductions ) , and enlargement of the ventricular system ( 31.8 % to 71.9 % increases ) .
C0006104
brains
C0152295
cerebral white matter