PSYB45H3 Chapter 5: PSYB45 Chapter 5 Detailed notes
16 Feb 2012
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Defining extinction: extinction: behavior that had been reinforced for period of time was no longer reinforced and behavior stopped occurring. Behavior that has been previously reinforced: 2. No longer results in reinforcing consequences: 3. Therefore, behavior stops occurring in future: as long as behavior is reinforced, it will continue to occur. Extinction burst, involves increase in unreinforced behavior or occurrence of novel behaviors for brief period of time, is natural reaction to termination of reinforcement. Increased frequency, duration or intensity of unreinforced behavior or novel behaviors that occur during extinction may be reinforced: extinction burst serves valuable purpose. Spontaneous recovery: behavior may occur again even after it has not occurred for some time: natural tendency for behavior to occur again in situations that are similar to those in which it occurred before extinction. If extinction is still in place when spontaneous recovery occurs if no reinforcement behavior will not continue for long.
