PSYC214 Chapter 4: Classical Conditioning - Mechanism
Document Summary
Conditioned stimulus (cs): does not elicit the conditioned response (cr) initially, but comes to do so as a results of becoming associated with the. Unconditioned stimulus (us): is effective in eliciting the unconditioned response (ur) from the outset without special training. Css and uss are relative to other stimuli - they depend on what other stimulus are/do. Novelty of conditioned (cs) and unconditioned stimuli (us) If the unconditioned stimulus (us) and conditioned stimulus (cs) is familiar, learning proceeds more slowly, than if they were novel. Interference with conditioning produced by repeated exposure to the. If the cs is highly familiar, it will not be readily associated with the us compared to a novel stimulus. Experiments on the latent-inhibition effect have 2 phases: Pre-exposure phase: subjects are given repeated presentations of the cs by itself. Classical conditioning trials: the cs is paired with a us. Result: the subjects are slower to acquire responding because of the cs-pre-exposure.
