Sub-Cortical Structures, Networks, & Cognition

Question 1

What components is the STRIATUM comprised of?

Answer 1

The striatum, also known as the neostriatum or striate nucleus, is a subcortical part of the forebrain and a critical component of the reward system.

It receives glutamatergic and dopaminergic inputs from different sources and serves as the primary input to the rest of the basal ganglia system.

Question 2

What parts make up the VENTRAL STRIATUM?

Answer 2

The ventral striatum is composed of the nucleus accumbens and olfactory tubercle in primates.

Question 3

What (broadly conceived) is the function of the STRIATUM?

Answer 3

Functionally, the striatum receives SENSORY INPUT and has a role in coordinating multiple aspects of cognition, including motor and action planning, decision-making, motivation, reinforcement, and reward perception.

Question 4

What parts make up the DORSAL STRIATUM?

Answer 4

In all primates, the dorsal striatum is divided by a white matter tract called the internal capsule into two sectors called the caudate nucleus and the putamen.