Dopamine signaling in the dorsomedial striatum promotes compulsive behavior.

ABSTRACT: Compulsive behavior is a defining feature of disorders such as substance use disorders. Current evidence suggests that corticostriatal circuits control the expression of established compulsions, but little is known about the mechanisms regulating the development of compulsions. We hypothesized that dopamine, a critical modulator of striatal synaptic plasticity, could control alterations in corticostriatal circuits leading to the development of compulsions (defined here as continued reward seeking in the face of punishment). We used dual-site fiber photometry to measure dopamine axon activity in the dorsomedial striatum (DMS) and the dorsolateral striatum (DLS) as compulsions emerged. Individual variability in the speed with which compulsions emerged was predicted by DMS dopamine axon activ

SUBMITTER: Seiler JL 

PROVIDER: S-EPMC8930615 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature