1. Temporal Arrangements of CS and US CS US Simultaneous Conditioning: The CS and US begin at the same time.

2. Temporal Arrangements of CS and US CS US Delay Conditioning: The CS begins before the US and overlaps it.

3. Temporal Arrangements of CS and US CS US Trace Conditioning: The CS begins and ends before the US begins.

4. Temporal Arrangements of CS and US CS US Key Variable: The CS-US Interval This is the time between CS onset and US onset. For every situation, there is an optimal CS-US interval. Intervals that are too short or too long give slower conditioning.

5. Temporal Arrangements of CS and US CS US Backward Conditioning: The CS begins after the US begins.

6. Temporal Arrangements of CS and US How these procedures rank in effectiveness: Best Worst Delay Conditioning Trace Conditioning Backward Conditioning Simultaneous Conditioning

7. 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…

8. Temporal Arrangements of CS and US US = CS