Table 1.

The mean, median, max, min and standard deviation (SD) of participants (n = 40) for SCL and HF HRV, baseline measures were computed from second 150–270, recovery measures were computed over the whole recovery period.

Period	Sound	Statistic (N = 40)
		Mean	Median	Max	Min	SD
	Skin conductance level (SCL), μS
Baseline	Silence	0.55	0.53	2.01	0.09	0.39
Recovery	Nature	0.82	0.84	1.84	0.25	0.36
	High Noise	0.87	0.90	1.49	0.25	0.35
	Low noise	0.84	0.86	1.69	0.17	0.39
	Ambient	0.85	0.84	1.80	0.28	0.38
	High frequency heart rate variability (HF HRV), ms2/Hz
Baseline	Silence	0.60	0.55	1.08	0.29	0.21
Recovery	Nature	0.59	0.58	0.91	0.27	0.18
	High Noise	0.60	0.57	1.01	0.31	0.20
	Low noise	0.60	0.53	1.07	0.25	0.21
	Ambient	0.61	0.57	1.04	0.32	0.19