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<img class="aligncenter" src="https://scx1.b-cdn.net/csz/news/800a/2023/research-challenges-tr.jpg" alt="Research challenges traditional theory of mechanisms of cocaine self-administration" title="The cumulative record of injections (A), active lever presses (B), and the calculated levels of cocaine at the time of each event (C) during a representative session. Once rats acquired self-administration behavior on FR50 schedule, rats were on FR1/FR50 sessions in which the unit dose was one of […]
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