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Full-Text Articles in Psychology
Serial Conditioning As A Function Of Stimulus, Response, And Temporal Dependencies, William L. Palya, Rick A. Bevins
Serial Conditioning As A Function Of Stimulus, Response, And Temporal Dependencies, William L. Palya, Rick A. Bevins
Research, Publications & Creative Work
Six experiments were used to examine the effects of explicit response, stimulus, and temporal dependencies on responding in an interfood interval. The first two experiments demonstrated that 10- segment 60-s interfood clocks controlled similar distributions of key pecking in pigeons regardless of whether response-reinforcement contiguity was required, allowed, or precluded. The third and fourth experiments found that in the absence of an explicit response-reinforcement dependency, systematic explicit stimuli in an interfood interval were sufficient to establish and maintain the characteristic distribution of key pecking and that an interval without an explicit clock failed to establish or maintain key pecking. The …
Sign-Tracking With An Interfood Clock, William L. Palya
Sign-Tracking With An Interfood Clock, William L. Palya
Research, Publications & Creative Work
Food was presented to pigeons, irrespective of their behavior. The fixed 60-s interfood interval was segmented into ten 6-s periods, each signaled by a distinctive stimulus color, ordered by wavelength. This "interfood clock" reliably generated and maintained successively higher rates of key pecking at stimuli successively closer to food. Under extinction, key pecking ceased. When the standard stimulus sequence was changed to a different sequence for each bird, accelerated responding again emerged and was sustained under each of the new color sequences. However, responding was neither maintained nor acquired when each successive interfood interval provided a different random sequence of …