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Vasconcelos, Marco; Urcuioli, Peter J. – Journal of the Experimental Analysis of Behavior, 2009
Zentall and Singer (2007a) hypothesized that our failure to replicate the work-ethic effect in pigeons (Vasconcelos, Urcuioli, & Lionello-DeNolf, 2007) was due to insufficient overtraining following acquisition of the high- and low-effort discriminations. We tested this hypothesis using the original work-ethic procedure (Experiment 1) and one…
Descriptors: Ethics, Enrollment, Evaluation Methods, Animals
Pizzo, Matthew J.; Kirkpatrick, Kimberly; Blundell, Pamela J. – Journal of the Experimental Analysis of Behavior, 2009
The differential reinforcement of low rate (DRL) schedule is commonly used to assess impulsivity, hyperactivity, and the cognitive effects of pharmacological treatments on performance. A DRL schedule requires subjects to wait a certain minimum amount of time between successive responses to receive reinforcement. The DRL criterion value, which…
Descriptors: Reaction Time, Hyperactivity, Learning, Reinforcement