Table 1. Summary of means (SD) for each dependent measure as a function of condition during the acquisition and extinction phase.

	Acquisition				Extinction
Measure	CS+	GS1	GS2	GS3	CS+	GS1	GS2	GS3
Uneasiness rating	5.32 (2.34)	4.05 (2.19)	2.90 (1.92)	2.56 (1.68)	3.95 (2.88)	2.88 (1.94)	2.31 (1.68)	2.10 (1.52)
Square root transformed and z-scored SCR magnitude (μS)	0.15 (0.48)	0.14 (0.36)	-0.03 (0.36)	0.08 (0.34)	0.13 (0.36)	-0.04 (0.26)	-0.04 (0.33)	-0.28 (0.26)

Note: Uneasiness rating, 1 = not at all and 9 = extremely; SCR magnitude (μS), square root transformed and z-scored skin conductance magnitude measured in microSiemens