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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Pharmacol Biochem Behav. 2018 Feb 24;167:50–59. doi: 10.1016/j.pbb.2018.02.003

Table 1.

Experimental groups and testing sequence

Experiment n Sex Procedure 1 Procedure 2 NTX dose Procedure 3 Data
1 8 Female DID (26 Weeks) SA training 0–10 mg/kg; SC PR testing Figure 2; Table 2
6 Male DID (26 Weeks) SA training 0–10 mg/kg; SC PR testing Figure 2; Table 2
2 8 Female CON & DID (16 weeks) Hormone assays 0 & 10 mg/kg; SC - Figures 1, 3, & 4
8 Male CON & DID (16 Weeks) Hormone assays 0 & 10 mg/kg; SC - Figures 1, 3, & 4

NTX, Naltrexone; DID, Modified drinking in the dark; CON, Control; SA, Self-administration; SC, Subcutaneous injection; PR, Progressive ratio.