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Classical Conditioning Unit 6 Russian physiologist, psychologist, & physician. Research in digestion. Noticed the dog not only salivated when tasting food but also… at the sight of food. at the sight of the food dish. at the sight of the person delivering the food. at the sound of that person’s footsteps. Conducted experiments using classical conditioning. A type of associative learning in which one learns to link two or more stimuli and anticipate events. Salivation Food Bell + Bell Food Salivation Salivation Salivation (UR) Food (US) Unconditioned a stimulus that naturally and automatically triggers a response. Unconditioned Stimulus (US) Response (UR) the unlearned, naturally occurring response to the unconditioned stimulus. Bell (NS) Neutral + Food (US) Stimulus (NS) an irrelevant stimulus that does not trigger a natural response. becomes the conditioned stimulus. Salivation (UR) Bell (CS) Conditioned Stimulus (CS) an originally irrelevant stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response. Conditioned Salivation (CR) Response (CR) the learned response to a previously neutral (but now conditioned) stimulus. Food (US) Bell (NS) + Bell (CS) Salivation (UR) Food (US) Salivation (UR) Salivation (CR)