Dopamine release at the time of a predicted aversive outcome causally controls the trajectory and expression of conditioned behavior

Munir Gunes Kutlu, Jennifer Tat, Brooke A. Christensen, Jennifer E. Zachry, Erin S. Calipari

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Dopamine release in the nucleus accumbens (NAc) is causally linked to adaptive aversive learning, and its dysregulation is a core phenotype in anxiety and stress disorders. Here, we record NAc core dopamine during a task where mice learn to discriminate between cues signaling two types of outcomes: (1) footshock presentation and (2) footshock omission. We show that dopamine release is evoked by footshock omission. This dopamine response is largest when the omission is unexpected and decreases over learning, and artificially increasing this signal disrupts discrimination learning. Conversely, optogenetic inhibition of dopamine responses to the footshock itself impairs learning. Finally, theory-driven computational modeling suggests that these effects can be explained by dopamine signaling the perceived saliency of predicted aversive events. Together, we elucidate the role of NAc dopamine in aversive learning and offer potential avenues for understanding the neural mechanisms involved in anxiety and stress disorders.

Original languageEnglish (US)
Article number112948
JournalCell Reports
Volume42
Issue number8
DOIs
StatePublished - Aug 29 2023
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Biochemistry, Genetics and Molecular Biology

Fingerprint

Dive into the research topics of 'Dopamine release at the time of a predicted aversive outcome causally controls the trajectory and expression of conditioned behavior'. Together they form a unique fingerprint.

Cite this