Mirari Elcoro, Psychology, and co-authors presented a paper entitled "Effects of Delay of Reinforcement on Temporal Control" at the symposium "Temporal Organization of Behavior and Delayed Reinforcement" at the annual meeting of the Association for Behavior analysis in Phoenix, AZ, May, 2009.

Elcoro and co-authors also presented a paper entitled "Effects of Response-Reinforcer Dependency on Variable and Fixed-Interval Responding" at the symposium "Response-Reinforcer Dependency: Research and Application" at the annual meeting of the Association for Behavior Analysis in Phoenix, AZ, May, 2009.