Brain: supratentorial central nuclei and tracts.

This article deals with numerous gray and white matter components of the forebrain, excluding the cerebral cortex. The basal ganglia, amygdalae, and basal forebrain structures are discussed including their groupings and subdivisions, as are the thalami, hypothalamus, and other derivatives of the diencephalon. The white matter structures considered include the capsules, optic and auditory radiations, and bundles ending or arising in the hypothalamus; all the major commissural tracts; and several major long association bundles that may be accurately located even if not discretely visualized.