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• W2548456423 abstract "Appetitive extinction receives attention as an important model for the treatment of psychiatric disorders. However, in humans, its underlying neural correlates remain unknown. To close this gap, we investigated appetitive acquisition and extinction with fMRI in a 2-day monetary incentive delay paradigm. During appetitive conditioning, one stimulus (CS+) was paired with monetary reward, while another stimulus (CS-) was never rewarded. Twenty-four hours later, subjects underwent extinction, in which neither CS was reinforced. Appetitive conditioning elicited stronger skin conductance responses to the CS+ as compared with the CS-. Regarding subjective ratings, the CS+ was rated more pleasant and arousing than the CS- after conditioning. Furthermore, fMRI-results (CS+ - CS-) showed activation of the reward circuitry including amygdala, midbrain and striatal areas. During extinction, conditioned responses were successfully extinguished. In the early phase of extinction, we found a significant activation of the caudate, the hippocampus, the dorsal and ventral anterior cingulate cortex (dACC and vACC). In the late phase, we found significant activation of the nucleus accumbens (NAcc) and the amygdala. Correlational analyses with subjective ratings linked extinction success to the vACC and the NAcc, while associating the dACC with reduced extinction. The results reveal neural correlates of appetitive extinction in humans and extend assumptions from models for human extinction learning." @default.
• W2548456423 created "2016-11-11" @default.
• W2548456423 creator A5021437905 @default.
• W2548456423 creator A5058187324 @default.
• W2548456423 creator A5061507458 @default.
• W2548456423 date "2016-10-31" @default.
• W2548456423 modified "2023-10-14" @default.
• W2548456423 title "Neural correlates of appetitive extinction in humans" @default.
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• W2548456423 doi "https://doi.org/10.1093/scan/nsw157" @default.
• W2548456423 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5537618" @default.
• W2548456423 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27803289" @default.
• W2548456423 hasPublicationYear "2016" @default.
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