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Trial Spacing And The Conditioned Motivational Effects Of A Food-Predictive Cue, Gabrielle M. Sutton May 2023

Trial Spacing And The Conditioned Motivational Effects Of A Food-Predictive Cue, Gabrielle M. Sutton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Stimuli in the environment can come to influence motivation and behavior through a process known as Pavlovian conditioning. During Pavlovian conditioning, stimuli in the environment come to predict the availability of a reward. Two different procedures are used to investigate how stimuli can modify ongoing behavior and reward consumption, known as Pavlovian-instrumental transfer and potentiated feeding, respectively. In other procedures that investigate how stimuli modify behavior, certain time intervals during Pavlovian training can influence how much a stimulus can modify behavior. One of those intervals is the time between the presentation of a stimulus and the associated reward. This interval …


Effects Of Oxycodone And Methylphenidate On Self-Control With Aversive Outcomes, Jeremy Saul Langford Jan 2023

Effects Of Oxycodone And Methylphenidate On Self-Control With Aversive Outcomes, Jeremy Saul Langford

Graduate Theses, Dissertations, and Problem Reports

In the context of choice, one is said to show self-control under numerous conditions in which consideration is given to the delayed outcomes of each option. This can be difficult: both reinforcing and aversive outcomes become less effective as they are increasingly delayed. Several socially significant issues arise from a failure of delayed, aversive outcomes to impact choice, especially when immediate, reinforcing outcomes are available. Identifying the conditions under which choice is sensitive to delayed outcomes is critical to shifting choices toward alternatives in which contact with delayed, aversive outcomes is minimized. Two experiments were conducted with the aim of …