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Human LearningTopic 3: Part 3 Respondent Conditioning Mechanisms and Function - continued

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Extinction

Passage of time has very little effect on strength of CR

Use extinction to remove or reduce the CR

Present the CS without the US

Remember predictability!

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Spontaneous Recovery

The response returns

Time between extinction trials will affect this

The larger the gap the larger the SR

On each trial you will see less and less SR

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Rapid Reacquisition

Acquisition – extinction – reacquisition

With each extinction/reacquisition the organism learns the CR quicker

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Credits

Earthrise – NASA

Jurassic Park Logo – alumni.utoronto.ca

www.sxc.hu

Light - iwd

Speaker – ba1969

Dinosaur - bwk

Express – gun4hire

Old woman - Luni