1. Classical Conditioning
Ivan Pavlov

2. Ivan Pavlov’s Failure Early 19 hundreds Dog’s digestive track.
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.

3. 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.

4. 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

5. 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

6. Classical Conditioning
Theoretical Model (Dynamic)
Stage 1: US UR
Meat Saliva
Stage 2: US NS UR
Meat Bell Saliva
Stage 3: CS CR
Bell Saliva

7. Classical Conditioning
Methods for Associating
Repetition
Meat & Bell, over and over again
Profound Experience
Usually a trauma
Near death experience
“Our Song”

8. 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