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Chapter 9

PSYC 3610H Chapter Notes - Chapter 9: Equivalence Class

Course Code
PSYC 3610H
Shawn Carter

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Chapter 9 Discrimination & Generalization
Stimulus Discrimination
Stimulus Control (Degree of correlation btwn a stimulus &
Stimulus Discrimination (emit a beh. in the presence of some
stimuli and not others)
o Stimulus discrimination training (teaching discrim)
Controlling Stimuli (Stimuli that control beh. due to
reinforcement in their presence and extinction in their absence)
o Aka Discriminative stimuli or SDs
Types of Controlling Stimuli
Discriminative Stimulus for Reinforcement (SD)
o Response has been reinforced only in presence of stimuli
o Cue that a particular response will pay off
Discriminative stimulus for extinction (SΔ)
o Response has been extinguished only in presence of a
particular stimuli
o Cue that a particular response will not pay off
A stimulus may be simultaneously an SD for 1 response and a
S^ for another
Stimulus Generalization
Responding the same way to a different, but similar stimuli
Unlearned stimulus generalization due to high physical
similarity (likely to perform a beh. in a new situation if it is
similar to when the beh. was learned)
Learned stimulus generalization due to low physical
similarity (have to learn the stimulus class/concept- set of
stimuli that have some common physical characteristic)
Learned stimulus generalization due to stimulus equivalence
class (set of completely dissimilar stimuli in which all members
of the class control the same response)
Ensuring Effectiveness of Stimulus Discrimination Training
Choose distinct signals
Minimize opportunities for errors
Maximize the number of trials (need multiple to learn beh)
Make use of rules; describe the contingencies (rules can speed
up learning)
Stimulus Discrimination Pitfalls
May inadvertently teach others to respond inappropriately to
particular cues
May inadvertently teach others not to respond appropriately to
particular cues
find more resources at oneclass.com
find more resources at oneclass.com
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