The document discusses different aspects of extinction in human learning, including renewal where a response can reemerge in a new context, reinstatement where presenting the unconditioned stimulus can cause relearning, and ways to reduce recovery of the extinguished response such as using multiple extinction trials close together or presenting extinction cues in different contexts. It also notes that extinction is not permanent and does not completely erase the association between the conditioned and unconditioned stimuli.

1. Human Learning
Topic 7: Extinction Part 2
CEDP 324 Ryan Sain, Ph.D. 1 3/30/2012

2. Renewal cont.
 Drug treatments
 Phobia treatments
 Learning in one context
generalizes
 Extinguishing may result
in renewal
 Cycle
 Treatments  extinguish
in many contexts

3. 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

4. “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

5. Presentations
 Many
extinction
trials
 Close
together
 More
effective than
spreading
them out
 Still get
recovery

6. Reduce recovery
 Do repeated cycles of „rest and recovery‟
 Present cues that were present during extinction

7. Reduce renewal
 Extinguish in different contexts
 Use extinction cues

8. Credits
 www.sxc.hu
 Building - freschje
 Sleeping cat – FlorinN
 Dresses - Twasa
 Renovated building - hbrinkman
 Paul Harvey – www.time.com
 Constitution – www.princetonol.com