Table 2.

Comparison of the high (HA) and low anxiety (LA) groups with regard to responding to the unconditioned stimulus (US).

	High anxiety (n = 24) M (SD)	Low anxiety (n = 23) M (SD)	t	p
US unpleasantness rating	4.30 (1.06)	4.14 (0.87)	0.58	0.563
Startle-EMG magnitude	50.92 (7.14)	48.86 (3.72)	1.23	0.226
Startle-EMG probability	0.46 (0.30)	0.27 (0.22)*	2.36	0.023
GÜF	5.33 (2.43)	1.96 (1.85)	5.35	<0.001

Groups were compared with regard to subjective US unpleasantness, assessed in the MEG after the extinction phase. Electromyography (EMG) measured the startle fear response to the US, and groups were compared with regard to physiological sensitivity to the US, using Startle-EMG magnitude and probability. In addition, differences in self-reported sensitivity to noise (GÜF) between groups were assessed. Descriptive statistics for each group and measure, t-test statistics used for group comparison, and corresponding significance values are shown. Significant comparisons are marked in bold. *For probability analysis, one participant in the LA group with extreme value was excluded.