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Temporal Arrangements of CS and US. Simultaneous Conditioning:. The CS and US begin at the same time. CS. US. Temporal Arrangements of CS and US. Delay Conditioning:. The CS begins before the US and overlaps it. CS. US. Temporal Arrangements of CS and US. Trace Conditioning:.

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Temporal arrangements of cs and us l.jpg
Temporal Arrangements of CS and US

Simultaneous Conditioning:

The CS and US begin at the same time.

CS

US


Temporal arrangements of cs and us2 l.jpg
Temporal Arrangements of CS and US

Delay Conditioning:

The CS begins before the US and overlaps it.

CS

US


Temporal arrangements of cs and us3 l.jpg
Temporal Arrangements of CS and US

Trace Conditioning:

The CS begins and ends before the US begins.

CS

US


Temporal arrangements of cs and us4 l.jpg
Temporal Arrangements of CS and US

Key Variable: The CS-US Interval

This is the time between CS onset and US onset.

CS

US

For every situation, there is an optimal CS-US interval.

Intervals that are too short or too long give slower

conditioning.


Temporal arrangements of cs and us5 l.jpg
Temporal Arrangements of CS and US

Backward Conditioning:

The CS begins after the US begins.

CS

US


Temporal arrangements of cs and us6 l.jpg
Temporal Arrangements of CS and US

How these procedures rank in effectiveness:

Best

Delay Conditioning

Trace Conditioning

Backward Conditioning

Worst

Simultaneous Conditioning


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Temporal Arrangements of CS and US

Generally, the more useful a CS is as a predictor of the US, the more quickly it will be associated with the US.

The 4 procedures line up with intuition. For example, suppose they’re building a highway in the desert. It goes straight as an arrow for 30 miles and then…