Download Salivation

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)