Table 3. Design of Experiment 3—paired vs unpaired noise-shock.

Group	Training treatment: 10 CS-US pairings(5 per day)	Testing treatment(2 on 1 day)
(1) Paired noise-shock (conditioning)	10 s noise→1 s shock	10 s noise
(2) Unpaired noise-shock	10 s noise and 1 s shock – unpaired	10 s noise
(3) Noise - CS only	10 s noise	10 s noise
(4) Shock only (pseudo conditioning)	1 s shock	10 s noise