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Human LearningTopic 3: Part 2 Respondent Conditioning Basics

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Excitatory Conditioning

The CS elicits activity related to the US

Without the US

Show fear in presence of furry creatures

Your system is ‘excited’

A response is added.

A connection added.

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Delay Conditioning

ISI < 1 minute

ISI typically 5-10 minutes

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Trace Conditioning

•Sometimes called a ‘trace interval’•Typically the ISI or TI is less than 1 minute

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Simultaneous

Seems to make sense – but it is not very effective

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How to measure CRs?

Magnitude

Strength, quantity

Probability

Likelihood that a CS CR

Latency

CS … or ……… CR

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Inhibitory Conditioning

Rather the devil you know, than the devil you don’t!

Predictability is powerful

Signaling the absence of a US.

Library no loud noises

Shelter no bitter cold wind

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The procedure

Present the CS as normal.

The CS+ (US) CR

Red light (danger) stopping

Present a second stimulus concurrently

CS+, CS- ______ The CS- signals

that no US will happen

Red light, cop signaling driving

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Another procedure

CS- is negatively correlated with a US.

Or predicts a long absence of the US

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Prevalence

Fear

Causal events

Food aversions

Emotions

Fertility

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Credits

www.sxc.hu

Electricity – gun4hire

Scale – saltoricco

Devil – vikush

Puzzle – lusi

Football hit – www.hulsestrength.com