A researcher conducts a fear conditioning study with three phases. In this study, participants listen to sounds while hooked up to a machine that can deliver unpleasant electric shocks. In Phase 1, participants complete 60 trials where a bell sound is paired with an unpleasant electric shock a moment later. In Phase 2, participants hear the bell for 60 trials but receive no shocks. In Phase 3, participants hear the bell and receive a shock on the first trial, then hear the bell for 60 trials without any shocks. Classifying responses as weak or strong, predict the skin conductance response to the bell sound that you would expect at (a) the first trial of Phase 2, (b) the last trial of Phase 2, (c) the second trial of Phase 3.
(d) At what point in the study does "spontaneous recovery of the extinguished response" occur?

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In classical fear conditioning studies like this the skin conductance response SCR tends to reflect ... View the full answer