Original ResearchPublished 28 August 2026Genetic modulation of oxycodone self-administration trajectories: from initiation to escalating burst patternsCaleb I. Hodges · Eamonn P. Duffy · Jonathan O. Ward · Luanne H. Hale · Cove C. Andrews · Laura M. Saba · Marissa A. Ehringer · Ryan K. BachtellFrontiers in Behavioral Neurosciencedoi 10.3389/fnbeh.2026.1913370