Determination of calcium, copper, magnesium, and zinc content of identical areas in human cerebral hemispheres of normals.

The distribution of calcium, copper, magnesium and zinc in five anatomical regions of both hemispheres of the human brain were investigated. No asymmetry was observed with the exception of the distribution of copper in the white matter. The concentrations of these elements in the substantia nigra from both sides of the midbrain were also measured.