Basolateral amygdala dopamine transmits emotional salience
Megan A. Brickner, William E. Szot, Amy R. Wolff, Mark J. Thomas, Benjamin T. Saunders · 2026
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Description
Megan A. Brickner and colleagues record, in a 2026 study, dopamine signals in the rat amygdala, the brain hub that tags experiences with emotional weight. Dopamine's role there was murky next to its fame in reward circuits elsewhere. The team watched dopamine release in living rats across several learning tasks. Cues ranged from reward and threat to safety and neutral signals, and their emotional intensity varied by design.
Dopamine rose with how intense a cue felt, not with its reward value or how strongly it had been learned. Reward cues actually evoked smaller signals as training went on, the reverse of classic reward teaching signals. Threat and safety cues produced the largest, longest responses. When rats juggled several associations at once, the signal rescaled to mark relative importance. The authors cast amygdala dopamine as a salience reporter, telling the brain what deserves attention.
Catalog record
| CREATOR | Megan A. Brickner, William E. Szot, Amy R. Wolff, Mark J. Thomas, Benjamin T. Saunders |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 90637 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |