{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T23:56:17Z","timestamp":1768521377557,"version":"3.49.0"},"posted":{"date-parts":[[2025,3,24]]},"group-title":"Neuroscience","reference-count":72,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2025,3,24]],"date-time":"2025-03-24T00:00:00Z","timestamp":1742774400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.biorxiv.org\/about\/FAQ#license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2025,3,24]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:p>Descending projections from the medial habenula potently influence brainstem systems associated with reward and mood. Relatedly, the ventral, cholinergic segment of the nucleus has been linked to nicotine and cocaine addiction. Here we report that cocaine has no effect on baseline firing in the ventral medial habenula but entirely blocks the self-sustained activity initiated by endogenous acetylcholine. This effect was not altered by antagonists to dopamine receptors and thus presumably reflects a direct action on cholinergic receptors. Remarkably, cocaine had no effect on endogenous cholinergic activity in mice that had been extinguished from an induced cocaine preference. In all, the drug has potent effects, albeit through an exotic mode of action, on the medial habenula and these are eliminated by prior experience with the drug. These results describe a novel target for cocaine that is plausibly related to the psychological effects of the drug, and an unexpected consequence of earlier use.<\/jats:p>","DOI":"10.1101\/2025.03.20.644247","type":"posted-content","created":{"date-parts":[[2025,3,25]],"date-time":"2025-03-25T04:00:24Z","timestamp":1742875224000},"source":"Crossref","is-referenced-by-count":0,"title":["Cocaine Blocks Cholinergic Activity in the Medial Habenula Prior to But Not After Induced Preference for the Drug"],"prefix":"10.64898","author":[{"given":"Yousheng","family":"Jia","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenyi C.","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julie C.","family":"Lauterborn","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christine 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