04/10/2023CEDP 324 Ryan Sain, Ph.D. 1

Human LearningTopic 7: Extinction Part 2

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