Table 1. Changes in percent freezing response in the tone control group.

	Baseline (Day 1)	Baseline (Day 2)	CuFC Training (Day 3)	CuFC Testing (Day 4)
Mean (n = 7)	4.38	4.22	6.14	4.52
S.E.M.	2.17	1.78	1.83	2.04
p value		0.95	0.55	0.96
F value (1,13)		0.003	0.38	0.002