straɪˈætəm

Definitions

1. noun

a region of the brain that plays a key role in reward, motivation, and movement

“The striatum is a complex neural structure that is involved in the regulation of motor function.”

2. noun

a layer of the brain in certain invertebrates, such as mollusks, that is involved in sensory processing

“In mollusks, the striatum is a layer of neurons that is responsible for processing sensory information.”