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Direct linkAtlas, Lauren Y.; Phelps, Elizabeth A. – Learning & Memory, 2018
Fear-relevant stimuli such as snakes and spiders are thought to capture attention due to evolutionary significance. Classical conditioning experiments indicate that these stimuli accelerate learning, while instructed extinction experiments suggest they may be less responsive to instructions. We manipulated stimulus type during instructed aversive…
Descriptors: Fear, Stimuli, Hypothesis Testing, Visual Stimuli
Melchers, Klaus G.; Lachnit, Harold; Shanks, David R. – Learning and Motivation, 2004
In two human skin conductance conditioning experiments we investigated whether processing of stimulus compounds can be influenced by past experience. Participants were either pre-trained with a discrimination problem that could be solved elementally (A+, B-, AB+, C- in Experiment 1 and A+, AB+, C-, CB- in Experiment 2) or one that required a…
Descriptors: Experiential Learning, Stimulation, Classical Conditioning, Learning Processes
