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Galluccio, Llissa; Rovee-Collier, Carolyn – Learning and Motivation, 2006
A time window is a limited period after an event initially occurs in which additional information can be integrated with the memory of that event. It shuts when the memory is forgotten. The time window hypothesis holds that the impact of a manipulation at different points within the time window is nonuniform. In two operant conditioning…
Descriptors: Memory, Time, Operant Conditioning, Infants
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Stahlman, W. David; Blaisdell, Aaron P. – Learning and Motivation, 2011
Recent studies have demonstrated that the expectation of reward delivery has an inverse relationship with operant behavioral variation (e.g., Stahlman, Roberts, & Blaisdell, 2010). Research thus far has largely focused on one aspect of reinforcement--the likelihood of food delivery. In two experiments with pigeons, we examined the effect of two…
Descriptors: Reinforcement, Operant Conditioning, Rewards, Animals