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. 2024 Sep 13;241(12):2497–2511. doi: 10.1007/s00213-024-06678-7

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© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2024

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Fig. 2 — Heroin self-administration training in Context A. A Timeline of Exp. 2–3. B AT-201: Number of heroin infusions and lever presses during heroin self-administration in Context A (n = 53, 24 males, 29 females). C J-113397: Number of heroin infusions and lever presses during heroin self-administration in Context A (n = 54, 23 males, 31 females). All data are mean ± SEM