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Direct linkMcDowell, J. J.; Popa, Andrei; Calvin, Nicholas T. – Journal of the Experimental Analysis of Behavior, 2012
Virtual organisms animated by a selectionist theory of behavior dynamics worked on concurrent random interval schedules where both the rate and magnitude of reinforcement were varied. The selectionist theory consists of a set of simple rules of selection, recombination, and mutation that act on a population of potential behaviors by means of a…
Descriptors: Reinforcement, Intervals, Experiments, Predictor Variables
Urcuioli, Peter J.; Swisher, Melissa – Journal of the Experimental Analysis of Behavior, 2012
Pigeons trained on successive AB symbolic matching show emergent BA antisymmetry if they are also trained on successive AA oddity and BB identity (Urcuioli, 2008, Experiment 4). In other words, when tested on BA probe trials following training, they respond more to the comparisons on the reverse of the nonreinforced AB baseline trials than on the…
Descriptors: Animals, Animal Behavior, Experiments, Stimuli
Tanno, Takayuki; Silberberg, Alan; Sakagami, Takayuki – Journal of the Experimental Analysis of Behavior, 2012
In Experiment 1, food-deprived rats responded to one of two schedules that were, with equal probability, associated with a sample lever. One schedule was always variable ratio, while the other schedule, depending on the trial within a session, was: (a) a variable-interval schedule; (b) a tandem variable-interval,…
Descriptors: Animals, Animal Behavior, Experiments, Reinforcement
Elliffe, Douglas; Davison, Michael; Landon, Jason – Journal of the Experimental Analysis of Behavior, 2008
One assumption of the matching approach to choice is that different independent variables control choice independently of each other. We tested this assumption for reinforcer rate and magnitude in an extensive parametric experiment. Five pigeons responded for food reinforcement on switching-key concurrent variable-interval variable-interval…
Descriptors: Criteria, Statistical Analysis, Reinforcement, Models
Shahan, Timothy A.; Podlesnik, Christopher A.; Jimenez-Gomez, Corina – Journal of the Experimental Analysis of Behavior, 2006
Attempts to examine the effects of variations in relative conditioned reinforcement rate on choice have been confounded by changes in rates of primary reinforcement or changes in the value of the conditioned reinforcer. To avoid these problems, this experiment used concurrent observing responses to examine sensitivity of choice to relative…
Descriptors: Reinforcement, Predictor Variables, Intervals, Conditioning
Shull, Richard L.; Grimes, Julie A. – Journal of the Experimental Analysis of Behavior, 2006
Rats obtained food-pellet reinforcers by nose poking a lighted key. Experiment 1 examined resistance to extinction following single-schedule training with different variable-interval schedules, ranging from a mean interval of 16 min to 0.25 min. That is, for each schedule, the rats received 20 consecutive daily baseline sessions and then a session…
Descriptors: Training, Positive Reinforcement, Intervals, Animals
