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Full-Text Articles in Psychology

Effects Of Brief-Signal Number And Location On Responding Maintained By Delay Of Reinforcement, Firdavs Khaydarov Jan 2023

Effects Of Brief-Signal Number And Location On Responding Maintained By Delay Of Reinforcement, Firdavs Khaydarov

Graduate Theses, Dissertations, and Problem Reports

The purpose of the present series of experiments was to examine the effects of the number, type, and location of brief signal(s) occurring during, but not throughout, a delay period, on responding maintained by the delay of reinforcement. In each experiment, a tandem variable time (VT) 60-s fixed interval (FI) 9-s schedule was used as a baseline condition of an immediate reinforcement against which delay conditions were examined. For the delay conditions, a chained variable interval (VI) 60-s fixed time (FT) 9-s (delay period) schedule was used, and the imposition of the brief signal (blackout) during the delay period was …


Effects Of Aripiprazole Alone And In Combination With D-Amphetamine On Probability Discounting In Sprague-Dawley Rats, Paige Currie Jan 2023

Effects Of Aripiprazole Alone And In Combination With D-Amphetamine On Probability Discounting In Sprague-Dawley Rats, Paige Currie

Graduate Theses, Dissertations, and Problem Reports

Pharmaceuticals are helpful tools in aiding individuals with psychiatric diagnoses. Sometimes, the drug’s side effects can be more severe than the initial problem. Maladaptive behaviors, like pathological gambling, overeating, and substance abuse, are important to consider during the prescription of different pharmaceuticals, particularly those used to treat Attention-Deficit/Hyperactivity Disorder (ADHD) and autism spectrum disorder (ASD). Individuals with these diagnoses are often prescribed: stimulants, like d-amphetamine (d-AMP; for symptoms associated with ADHD), and antipsychotics, like aripiprazole (ARI; for symptoms associated with ASD). These drugs in combination could influence maladaptive behavior, including risky choice (probability discounting). The present study …


Evaluation Of Renewal During Differential Reinforcement With Asymmetrical Choices And A Context Fading Mitigation Technique, Kacey R. Finch Jan 2023

Evaluation Of Renewal During Differential Reinforcement With Asymmetrical Choices And A Context Fading Mitigation Technique, Kacey R. Finch

Graduate Theses, Dissertations, and Problem Reports

Successful clinical behavior analytic treatment often results in decreases in challenging behavior and increases in appropriate behavior. These reductions in challenging behavior are often achieved by implementing differential reinforcement of alternative behavior (DRA; Petscher et al., 2009). One variation of DRA to decrease challenging behavior is differential reinforcement with asymmetrical choices, which are two or more concurrently available response options associated with differential outcomes (Fisher & Mazur, 1997; Kestner et al., 2023). However, responding that was previously reduced sometimes reemerges. Specifically, renewal is the reemergence of a previously reduced response following a context change. The first two experiments evaluated renewal …


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 …


Response Maintenance By Mediated Reinforcement With Forced Alternation Of Reinforcement Opportunities, Kento Yasukawa Jan 2023

Response Maintenance By Mediated Reinforcement With Forced Alternation Of Reinforcement Opportunities, Kento Yasukawa

Graduate Theses, Dissertations, and Problem Reports

Three experiments were conducted to investigate the effects of mediated reinforcement –reinforcers delivered to either of two co-actors by the responses of the other co-actor, but independently of the responses of the co-actor receiving the reinforcer– on the maintenance of responding of the co-actors. In each experiment, using a discrete-trials procedure, responding and receiving reinforcers alternated between co-actors. In Experiment 1, the alternation followed each reinforcer. Also investigated in this experiment were the effects of the presence and absence of social stimuli and of the role of reinforcement delays on individual responding. The number of consecutive reinforcer deliveries to either …


The Effect Of Sequential Stimuli On Variable-Interval Schedule Performance And Resurgence, Amanda K. Miles Jan 2023

The Effect Of Sequential Stimuli On Variable-Interval Schedule Performance And Resurgence, Amanda K. Miles

Graduate Theses, Dissertations, and Problem Reports

Resurgence, or the recurrence of a previously established but not currently occurring response given a worsening of current conditions, is a systematic phenomenon with clinical implications; thus, understanding the variables that impact resurgence is important. Investigations into the impact of discriminative stimuli on resurgence have yielded mixed results about whether the stimuli associated with extinction mitigate or prevent resurgence. The current experiments were conducted with sequential stimuli, that is, two or more stimuli occurring in a fixed sequence, that allowed determination of the effect of discriminative stimuli across a continuum of reinforcement conditions (from most temporally distal to most proximal …