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Striatum

Striatum
BrainCaudatePutamen.svg
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
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The striatum, also known as the neostriatum or striate nucleus, is one of the subcortical basal ganglia of the forebrain. The striatum is a critical component of the motor and reward systems. It receives mainly glutamatergic and dopaminergic inputs from different sources, and, along with the rest of the striatum, serves as the primary input to the rest of the basal ganglia nuclei. In primates there is a ventral part and a dorsal part of the striatum. The ventral part consists of the nucleus accumbens and the olfactory tubercle. The dorsal part consists of the caudate nucleus and the putamen. A white matter tract called the internal capsule in the dorsal striatum separates the caudate nucleus and the putamen. The striatum functions to coordinate multiple aspects of cognition, including motor and action planning, decision-making, motivation, reinforcement, and reward perception.the term striatum is used because of the striated appearance of gray matter passing through the internal capsule and connect the caudate nucleus to the putamen of the lentiform nucleus.

Sometimes the globus pallidus is included with the striatum when it is then known as the corpus striatum. The lentiform nucleus refers to the putamen together with the globus pallidus.


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Wikipedia

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