Corpus striatum

Striatum
purple=caudate and putamen, orange=thalamus
Details
Part of	Basal ganglia Reward system
Components	Ventral striatum Dorsal striatum
Identifiers
Latin	neostriatum
NeuroLex ID	Striatum
TA	A14.1.09.516
FMA	77616
Anatomical terms of neuroanatomy []

The striatum (also the neostriatum and the striate nucleus) is one of the nuclei in the subcortical basal ganglia of the forebrain. The striatum is a critical component of the motor and reward systems; receives glutamatergic and dopaminergic inputs from different sources; and serves as the primary input to the rest of the basal ganglia nuclei.

Functionally, the striatum coordinates multiple aspects of cognition, including motor- and action- planning, decision-making, motivation, reinforcement, and reward perception. Structurally, when the globus pallidus (pale globe) is included with the striatum, they form the corpus striatum structure. The lentiform nucleus refers to the putamen of the dorsal striatum and the globus pallidus.

In primates, the striatum is divided into ventral and dorsal subdivisions, based upon function and connections. The ventral striatum consists of the nucleus accumbens and the olfactory tubercle. The dorsal striatum consists of the caudate nucleus and the putamen. A white matter, nerve tract (the internal capsule) in the dorsal part separates the caudate nucleus and the putamen. Anatomically, the term striatum describes the striped (striated) appearance of the grey-and-white matter that composes said structure of the brain.