Module 15Classical Conditioning

Chapter 5, Pages 176-186Essentials of Understanding Psychology- Sixth Edition

PSY110 Psychology

© Richard Goldman

October 18, 2006

Classical Conditioning

Learned Response - learned by paring a neutral stimuli with a natural stimuli (Unconditioned Stimuli)

Discovered by Ivan Pavlov while studying digestion

Ivan Pavlov (1849 - 1946)

Classical Condition - Pavlov’s Experiment

Neutral Stimulus: Bell Rings (neutral stimulus) Gets Dog’s Attention

(unrelated to meat)

Unconditioned Stimulus Dog Shown Meat (UCS

Unconditioned Stimulus) Dog Salaivates (UCR

Unconditioned Response)

During Conditioning Neutral Stimulus:

Bell Rings Unconditioned Stimulus

Shown Meat Unconditioned Response

Dog Salivates

After Conditioning

Conditioned Stimulus: Bell Rings

(Unconditional Stimulus removed) (no meat shown)

Conditioned Response Dog Salivates

Before Conditioning

Before Conditioning

Extinction

Extinction of Conditioned Response Un-learning a conditioned response The strength of a conditioned response

diminishes if not reinforced. Spontaneous Recovery

Immediate reemergence of CR Single paring of CS with CR

Stimulus Generalization

Responding similar stimuli as though it were the Conditioned Stimuli

Stimulus Discrimination

Ability to differentiate between stimuli