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A Systematic Investigation Of Warning Stimulus Modality Effects On Two-Way Active Shuttle Avoidance Performance In Rats, James Paul Villaume
A Systematic Investigation Of Warning Stimulus Modality Effects On Two-Way Active Shuttle Avoidance Performance In Rats, James Paul Villaume
Theses and Dissertations (Comprehensive)
Three students systematically investigated the hypothesis of Rosic, Frontali and Bignami (1969) that certain stimuli facilitate higher levels of avoidance performance (i.e., more correct responses) because of their ability to generate greater amounts of unconditioned motor activity during the stimulus presentation. Experiment I showed that buzzer, tone and light stimuli produce different amounts of unconditioned motor activity in rats, with the buzzer generating the most activity and the light generating the least. In Experiment II, the introduction of non-contingent shock resulted in a reduction in motor activity levels, but the buzzer still produced higher levels of activity than the light. …