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Classical Conditioning. Ivan Pavlov. Ivan Pavlov’s Failure. Early 19 hundreds No restrictions on the type of research you could do. (PETA, IRB,…) Dog’s digestive track. Tube inserted into the dog’s stomach Given food, then saliva collected in a jar
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Classical Conditioning Ivan Pavlov
Ivan Pavlov’s Failure • Early 19 hundreds • No restrictions on the type of research you could do. (PETA, IRB,…) • Dog’s digestive track. • Tube inserted into the dog’s stomach • Given food, then saliva collected in a jar • Timed the processing from start to finish. • Complete Failure • Dog’s would salivate all the time.
Ivan Pavlov’s Background • Classically Educated Scientist • Philosophy of Aristotle • Learn through similarities • Learn through differentiation • Learn through contiguity • One object is associated with another • No logical relationship • Objects are just PAIRED together.
Classical Conditioning • Theoretical Model (Static) • Stimulus Response • Causal relationship between events • Cookies baking smell hunger pangs • Stimuli • Cause of the response • Types of Stimulus • Unconditioned Stimulus (US) • Natural cause of the response • Conditioned Stimulus (CS) • Unnatural cause of the response • Neutral Stimulus (NS) • Causes nothing
Classical Conditioning • Responses • Natural reaction to stimulus • Characteristics of C.C. responses • Involuntary • Physiological • Reflex • Types of Responses • Unconditioned Response (UR) • Natural reaction to a stimulus • Conditioned Response (CR) • Unnatural reaction to a stimulus
Classical Conditioning • Theoretical Model (Dynamic) • Stage 1: US UR Meat Saliva • Stage 2: USNSUR Meat Bell Saliva • Stage 3: CSCR Bell Saliva
Classical Conditioning • Methods for Associating • Repetition • Meat & Bell, over and over again • Profound Experience • Usually a trauma • Near death experience • “Our Song”
Classical Conditioning • Features of Classical Conditioning • Generalization • Stimulus is close enough to CS that it causes a CR. • Glass clinking causes dogs to salivate • Discrimination • Stimulus is different enough from CS that it doesn’t cause a CR. • Key chain does not cause dogs to salivate • Extinction • Continued presentation of the CS without the US