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Chapter 8

PSYB45H3 Chapter Notes - Chapter 8: Stim, Compulsive Buying Disorder, Stimulus Control

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Amanda Uliaszek

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Chapter 8: Antecedents Stimulus Control
Setting the Occasion for Behaviour:
Antecedents cues that precede and set the occasion for a behaviour
Learn cues that tell us when and where to perform or not perform certain responses by linking
the cues with the behv and its consequences
Types of Antecedents:
Behv happens in a context includes objects, o/ ppl, internal events (anything in the context
that arouses behv is a stimulus)
Overt and Covert Antecedents:
Overt antecedents: directly observable through our senses
Covert internal and not open to observation
Most common conseq of compulsive buying = neg reinforcements (gaining relief- escaping neg
feeling of anxiety)
Immediate and Distant Antecedents:
Most antecedents present shortly before behv occurs Immediate antecedents
Most are discrete events (have a start and a end, usually in short period of time)
o BUT can be continuing/ ongoing conditions too
Ex: elderly patients communicated more when environmental changes were
made by rearranging furniture to sit around small tables and served meals in
buffet style
Sometimes antecedents precede behv by several minutes, hours, or much longer amounts of
time Distant antecedents
o Ex: strong emotional and covert components of woman physically abused (influenced
for weeks/ years)
o Behv analysts need to identify existing antecedents by making systematic observations
of targ behv
o Overt and immediate easy to identify
o Covert and distant relatively difficult
Antecedent Functions:
Antecedents2 diff functions:
o 1. Motivational affects the effectiveness of a consequence for a behv
Ex: thirsty not hungry water more effective reinforcer
o 2. Discriminative stimulus that you can distinguish from many other objs
Ex: seeing the water fountain
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