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PSYB45H3 (1,061)
Chapter 4

Chapter 4

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University of Toronto Scarborough
Zachariah Campbell

Chapter 4 Reinforcement Reinforcement the process in which behavior is strengthened by the immediate consequence that reliably follows its occurrence When a behavior is strengthened, it is more likely to occur again in the future Thorndike (1911) law of effect; cat in cage cat is more likely to hit the lever because this behavior had resulted in an immediate consequence Defining Reinforcement When a behavior results in a favorable outcome, the behavior is more likely to be repeated in the future in similar consequences Reinforcement is: o The occurrence of a particular behavior o Is followed by an immediate consequence o That follows in the strengthening of behavior (person is more likely to engage in the behavior again in the future) Operant behavior a behavior that is strengthened through the process of reinforcement; acts on the environment to produce a consequence and is controlled by or occurs again in the future as a result of its immediate consequence Reinforcer the consequence that strengthens an operant behavior Frequency, duration and intensity of behavior may increase as a function of reinforcement *Table 4-1 (pg.76) Positive and Negative Reinforcement Both strengthen behavior increase probability that the behavior will occur in the future Positive reinforcement: o The occurrence of behavior followed by the addition of a stimulus (a reinforcer) or an increase in the intensity of a stimulus Negative reinforcement: o The occurrence of behavior followed by the removal of a stimulus (an aversive stimulus) or a decrease in the intensity of the stimulus www.notesolution.com
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