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| EAB 3 |
| Monday, May 31, 2004 |
| 3:30 PM–4:20 PM |
| Commonwealth |
| Area: EAB |
| Chair: James Kopp (University of Texas at Arlington) |
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| Theoretical Perspectives on Behavior Produced by Signaled Delay of Reinforcement Procedures |
| Domain: Applied Research |
| MARCO A. PULIDO (Universidad Intercontinental, Mexico), Nuria Lanzagorta Pnol (Universidad Ibroamericana), Mariana Rubi Gonzalez (Universidad Intercontinental, Mexico) |
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| Abstract: Behavior produced by signaled delay of reinforcement procedures has been accounted for in numerous and conflicting ways. The purpose of the present study was tu subdue theoretical disorder by examining the effects of four independent variables that are known to consistently modulate signal effects: 1. signal duration, 2. response-signal temporal separation, 3. reinforcement rate and 4. response-signal dependancy relations. Independent variable effects were assessed using both within and between subject designs; both response maintenance and acquisiton were used as dependent variables. Overall results suggest signals dramatically increase response efficency. Thus change in response-reinforcer ratio is offered as a new millstone for theoretical development on signaled delay of reinforcement effects. |
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| Computer Automated Shaping: Differential Reinforcement for Long Duration Responses using Three Common Shaping Algorithms |
| Domain: Applied Research |
| JAMES KOPP (University of Texas at Arlington), Denise Lott Arellano (University of Texas at Arlington) |
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| Abstract: Six laboratory rats were exposed to differential-reinforcement- of-long-barpress-duration schedules in daily 30 minute sessions for 25 days. The differentiation criterion for each session was calculated by adding 100 ms to either, 1) the mean of the 10 preceding response durations or, 2) the median of the 10 preceding response durations, or 3) the duration of the just preceding (“n-1”) response duration. During the first phase of the experiment, each algorithm was associated with a different light condition (different multiple schedule component) for five consecutive 30 minute sessions each in the order “n-1,” “mean,” “median.” In the second phase of the experiment, the same components were repeated in randomized blocks of five each for a total of 10 sessions. During the first phase, durations increased systematically from below one s to levels of from one to four s. During the second phase of the experiment, durations became stable across conditions for each animal at individual values ranging from 1 and 2.5 seconds irrespective of the method used to calculate the differentiation criterion. |
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