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Unformatted text preview: Classical Conditioning
Classical Classical Cond.
Classical The simplest mechanism whereby
organisms learn about relations between
stimuli and alter their behavior
- Animals learn to approach signals for
food and salivate when they are about to
- Learning of emotional reactions such as
fear and pleasure to stimuli that initially
do not elicit these emotions.
do Basic Terms
Basic Unconditioned stimulus (US) – a stimulus
that naturally triggers a response.
that Conditioned stimulus (CS) – an originally
irrelevant stimulus that after association
with the US, comes to trigger a
conditioned Basic Terms
Basic Unconditioned response (UR) – the
naturally occurring response to the US
naturally Conditioned response (CR) – the learned
response to the previously neutral CS
US causes a UR
CS causes a CR
Homer gets mad (“Why you little . . .”)
Ned getting mad
Ned Historical Beginnings
Ivan Pavlov (1849-1936) and his dogs
1. Originally studied to learn about
2. Technicians noticed increase in
stomach juice secretion at sight of food
or even person who fed them
or Classical Cond. Terms
Classical Acquisition – the stage where the CS-US
relationship is being learned
1. Temporal contiguity – except taste
2. Spatial contiguity – except auditory
3. CS must precede US
4. Biology is a limiting factor Terms cont.
Terms Extinction – the diminishing of the CR –
accomplished by the CS not being
followed by the US
followed Terms cont.
Terms Generalization – the tendency for stimuli
similar to the CS to elicit similar
50 Hz tone
50 Hz tone
75 Hz tone
Salivation Terms cont.
Terms Second-order conditioning – the ability of stimuli
that predict the CS to elicit the CR
Salivation Blue Light Tone = Salivation Food
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This note was uploaded on 06/07/2011 for the course PSYC 101 taught by Professor Cusaac during the Spring '08 term at South Carolina.
- Spring '08
- Classical Conditioning