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Evaluation Of The Efficacy Of A Rat Agreement Based Reinforcement Procedure, Katherine B. Lalonde
Evaluation Of The Efficacy Of A Rat Agreement Based Reinforcement Procedure, Katherine B. Lalonde
Masters Theses
Since 2007, giant African pouched rats (Cricetomys gambianus) have been used successfullyfor detecting Tuberculosis (TB) positive patients.The rats are trained to detect TB-positive sputum samples through the use of operant conditioning techniques, in which an indicator response is rewarded with food. If the rats are to be used for first line screening of patients reinforcement could not be provided because the true status of the sample would be unknown. The present study evaluated the effects of a reinforcement-for-agreement procedure that could be used to reinforce indication responses when the true status of the sample is unknown. Four rats evaluated 100 …
Influences Of Tnt-Food Pairings On The Performance Of Mine Detection Rats In Early Training Stages, Timothy L. Edwards
Influences Of Tnt-Food Pairings On The Performance Of Mine Detection Rats In Early Training Stages, Timothy L. Edwards
Dissertations
Anti-Persoonsmijnen Ontmijnende Product Ontwikkeling (APOPO), a Belgian nongovernmental organization headquartered in Tanzania, trains giant African pouched rats (Cricetomys gambianus) to detect land mines and deploys the rats for operational use in countries afflicted with mines and explosive remnants of war. In the present study an evaluation of the influence of ongoing scent-food pairings on the performance of the rats in early mine detection training was conducted. Twenty young rats in APOPO’s mine detection rat program were divided into two groups and exposed to five daily stimulus-food pairing sessions each week. For the experimental group the stimulus was the …
Slope Of Change Through D-Cycloserine Facilitation Of Exposure Therapy In A Social Anxiety Population, Christina M. Sheerin
Slope Of Change Through D-Cycloserine Facilitation Of Exposure Therapy In A Social Anxiety Population, Christina M. Sheerin
Dissertations
The present study sought to add to a growing base of research investigating approaches that facilitate the therapeutic effects of exposure-based therapy for social anxiety disorders. In particular, the approach involves the use of medication adjuvants that work in conjunction with therapeutic learning. This work translates findings from preclinical work to further our understanding of the neurobiological mechanisms that impact extinction learning. Among others, a promising method has been found with the use of D-cycloserine (DCS), a partial NMDA receptor agonist. Evidence of its positive impact in preclinical work has led to its application to clinical populations who suffer from …
The Effects Of The Temporal Placement Of Feedback On Performance And Skill Acquisition Of A Medical Data Entry Task, Nathan Bechtel
The Effects Of The Temporal Placement Of Feedback On Performance And Skill Acquisition Of A Medical Data Entry Task, Nathan Bechtel
Masters Theses
This study was conducted in a laboratory, and compared the effects of the temporal placement of feedback on task performance and skill acquisition. Temporal placement offeedback refers to the timing offeedback delivery relative to performance. Two temporal placements were examined: feedback immediately after performance and feedback immediately prior toperformance. The experimental design utilized was a form of Latin square design that included a combination of one between-group and two within subjects factors. Participants were randomly assigned to one of three groups, which differed only in the phase order utilized. Participants performed a data entry task intended to replicate thejob of …
Sharing: Social Behavior In Situations Of Risk, Stephanie Theresia Stilling
Sharing: Social Behavior In Situations Of Risk, Stephanie Theresia Stilling
Dissertations
The present study will experimentally investigate human cooperation (sharing) in a laboratory foraging task that simulates environmental variability and resource scarcity (shortfall risk). Specifically, it investigates whether a risk-reduction model of sharing developed by evolutionary biologists (derived from a risk-sensitive optimization model known as the energy-budget rule) could predict human cooperative behavior. Participants respond to earn points exchangeable for money when point gains were unpredictable. Failures to acquire sufficient points result in a loss of accumulated earnings (a shortfall). Participants are given the choice between working alone or working with others. The difficulty of meeting the earnings requirement is manipulated …
Assessing The Generality Of A Bout Analysis In The Description Of Operant Behavior, J. Adam Bennett
Assessing The Generality Of A Bout Analysis In The Description Of Operant Behavior, J. Adam Bennett
Dissertations
Operant psychologists typically use response rate as a primary measure of behavior. Although response rate has proven a useful dependent measure resulting in the identification of many important behavioral regularities, many researchers have argued that the measure has significant limitations. Primarily, response rate treats all responses in the measured response class as functionally equivalent and distributed uniformly across time. This conceptualization of behavior is useful as long as all responses are affected similarly by different experimental manipulations. Research has shown, however, that certain manipulations differentially affect responses with relatively short or long interresponse times. This has led to a new …
Motivating Operations In Drug-Discrimination, Amin Duff Lotfizadeh
Motivating Operations In Drug-Discrimination, Amin Duff Lotfizadeh
Dissertations
Motivating operations (MO) play an important role in learning and performance. According to the behavior analytic conceptualization, MOs alter the probability of responses that lead to relevant reinforcers and alter the reinforcing “value” of those reinforcers (e.g., Michael, 1982, 1993). Recent research suggests that one way in which MOs influence stimulus control is by influencing the control of behavior by discriminative stimuli. Interestingly, in studies with nonhumans, such an effect is commonly observed when lights and tones are used as discriminative stimuli, but not when drugs are used. Procedural differences across studies involving the species studied, the measurement system used …
Using Behavioral Interventions Amongst Unionized Workers To Increase Attendance, Marlies Hagge
Using Behavioral Interventions Amongst Unionized Workers To Increase Attendance, Marlies Hagge
Masters Theses
Employees’ attendance is fundamentally relevant for running a successful business. However, in many companies absences far exceed the national average of about 3% and pose a significant problem to the company’s overall success. This study compares the effectiveness of different low-cost behavioral interventions in order to increase attendance and specifically decrease the amount of avoidable absences from 6.3% overall absenteeism during baseline. Participants include 45 unionized custodians in 6 groups at a large Midwestern university. Interventions were introduced for 4 of the groups while the remaining 2 groups served as a control. Treatments evaluated include public recognition for perfect attendance, …