 This paper focuses on concurrent schedules of intravenous drug self-administration as a critical role in experimental analysis of psychoactive compounds like cocaine, specifically highlighting the evolution of drug choice procedures and subsequent preclinical literature to understand reinforcing stimulus effects. The paper proposes that choice schedules are underutilized in investigating drug reinforcement and concludes with potential future directions for scientific space exploration. This article was authored by Matthew L. Banks and S. Stevens Negus.