Table 1. Sample Description.

	Placebo	Propranolol	CRA	MMSS
	(n = 19)	(n = 20)	(n = 20)	(n = 20)
					F	p
age (mean/SD)	23.89 (3.06)	25.50 (3.71)	24.80 (6.15)	26.65 (7.42)	.97	.442
years of education (mean/SD)	11.78 (.63)	11.90 (.45)	11.60 (.82)	11.45 (.99)	1.13	.251
US characteristics
Shock Intenstity (mA) (mean/SD)	15.73 (8.67)	13.60 (7.27)	17.30 (7.21)	17.20 (8.14)	.97	.411
Trait Anxiety Assessment
Spider Fear (mean/SD)	5.21 (8.21)	7.65 (8.49)	7.50 (11.19)	8.70 (12.26)	.40	.753
Snake Fear (mean/SD)	5.00 (5.02)	4.20 (3.16)	3.55 (2.94)	5.25 (3.14)	.89	.446
Trait Anxiety (mean/SD)	29.11 (5.09)	31.70 (5.85)	30.45 (5.78)	31.45 (5.94)	.83	.479
US Evaluation
Day 1 (mean/SD)	-2.78 (1.68)	-3.50 (1.05)	-3.05 (1.76)	-3.30 (1.26)
Day 3 (mean/SD)	-2.94 (1.22)	-2.45 (1.63)	-2.45 (1.79)	-2.80 (0.95)
State Anxiety Assessment
day 1: state anxiety pre	29.16 (4.72)	32.52 (6.26)	31.70 (4.69)	32.50 (6.27)
day 1: state anxiety post	31.63 (10.05)	35.35 (8.91)	33.20 (7.73)	32.40 (6.56)
day 2: state anxiety pre	30.05 (6.28)	32.70 (8.19)	30.40 (5.24)	32.00 (6.74)
day 2: state anxiety post	28.52 (4.71)	31.80 (6.21)	28.25 (6.27)	30.60 (6.23)
day 3: state anxiety pre	29.62 (7.04)	34.15 (8.79)	31.60 (7.71)	31.35 (7.82)
day 3: state anxiety post	30.42 (7.17)	33.75 (7.06)	31.85 (9.41)	33.70 (8.37)