Abstract
The distribution of ChE in human brains was studied with eight autopsy materials. The concentration of ChE in the white matter of cerebrum is less than one fifth of that in the grey matter of cerebrum.
Basal ganglions and cortex of cerebellum had larger content of ChE than the grey matter of cerebrum. Putamen and Ncl. caudatus had extraordinarily high concentration of ChE.
There is some slight variation of the ChE content among the similar portions of these eight brains, but the relationship between the ChE concentration in the brain and the disease of the patients was not clearly observed owing to the small number of test cases.