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. Author manuscript; available in PMC: 2023 May 1.
Published in final edited form as: Addict Biol. 2022 May;27(3):e13162. doi: 10.1111/adb.13162

FIGURE 4.

FIGURE 4

Cocaine and saline intravenous self-administration (IVSA), averaged in the last three sessions. (A) Strain means for cocaine and saline IVSA in the last three sessions. Both cocaine and saline demonstrated heritable variation, with a broad range of intake across strains (error bars = SEM, scatter points = individual mouse values). An * below the strain name on the X-axis indicates that intake of cocaine or saline was significantly different for that strain. (B) Scatterplot of strain means for cocaine and saline IVSA in the last three sessions. There was a modest genetic correlation between saline and cocaine taking