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Chapter 7

Behavior Modification - chapter 7.docx

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Department
Psychology
Course
PSYB45H3
Professor
Konstantine Zakzanis
Semester
Summer

Description
Behavior ModificationChapter 7 Stimulus Control Discrimination and Generalization Operant Behavior is strengthened when it is followed by a reinforcing consequence it is weakened when the reinforcing consequence no longer follows the behavior extinctionA punishing consequence also weakens behaviorBecause operant behavior is controlled by its consequences behavior analysts analyze the events that follow the behavior to understand why is occurring and they manipulate the consequences of the behavior to modify itAntecedentsstimulus events that precede an operant response Antecedents of behavior are the stimuli events situations or circumstances that are present when it occurs or were present immediately before the behavior Why are antecedents of behavior importantWhen we understand the antecedants of behavior we have information on the circumstances in which behavior was reinforced and the circumstances in which the behavior was not reinforced or punished When its reinforced we continue to behave in the way in the same situations and when its not reinforced or punished we the behavior stops occurring in situations Examples of Stimulus Control Ex Jakes asks his mom for money and she usually gives him it but when he asks his dad he doesnt therefore he tends to ask his mom for money instead of his dad The behavior continues to occur in the situations where it is reinforcedo his moms presence is a antecedent for Jakes behavior of asking for casho he also only asks his mom for money when he needs it when an EO is presentGinny decides to go out and pick strawberries from the bushes in the backyardo She picks a bright one thats sweet and juicy and then picks another one that is still a little green and is sour and doesnt taste very goodo A red strawberry is an antecedent stimulusthe behavior of picking a red one is reinforcedo The presence of red strawberries has a stimulus control over Ginnys behavior of picking and eating the strawberrieso She only picks strawberries when the EO of being hungry is presentDefining Stimulus Control Stimulus controlthe behavior was more likelyoccur when a specific antecedent stimulus was present A behavior is said to be under stimulus control when there is an increased probability that behavior will occur in the presence of a specific antecedent stimulus or stimulus from a specific class What are some of your own behaviors that are under stimulus controlAsk yourself what behaviors occur in specific situations or in certain circumstancesLOOK AT TABLE 71Each example in the table shows a antecedent stimulus a behavior and a consequenceThe behavior occurs when the antecedent stimulus is presentthat is the only time that the behavior has been reinforced
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