Human Learning Topic 7: Extinction Part 2CEDP 324 Ryan Sain, Ph.D. 1 3/30/2012
Renewal cont. Drug treatments Phobia treatments Learning in one context generalizes Extinguishing may result in renewal Cycle Treatments extinguish in many contexts
Reinstatement Easy to relearn a once extinguished response Relearning is quicker than original learning Context specific CS = Blue squares US = loud noise CR = skin conductivity Reinstatement US presented Same room – response came back Different room – response remained extinguished
“And now…the rest of the story.” Extinction is clearly not permanent Doesn‟t completely erase Knowledge of reinforcer US – CS association We can improve it though
Presentations Many extinction trials Close together More effective than spreading them out Still get recovery
Reduce recovery Do repeated cycles of „rest and recovery‟ Present cues that were present during extinction
Reduce renewal Extinguish in different contexts Use extinction cues
Credits www.sxc.hu Building - freschje Sleeping cat – FlorinN Dresses - Twasa Renovated building - hbrinkman Paul Harvey – www.time.com Constitution – www.princetonol.com
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