Table 5. ANOVA time effects (df = 4,60 or 2,44) and paired t-tests (df = 15 or 22) measuring reduction in additional respiration-uncorrected and corrected RSA indices during Still-Face Test 1 and 2.

	ANOVA time effect			P vs. SF1		P vs. SF2
	F	p	ηp2	t	p	t	p
Test 1 (n = 23)
logRSA (log ms)	6.06	.009	.216	4.84	.001
RSAc (ms)	3.52	.058	.138	4.12	.001
logRSAc (log ms)	5.95	.008	.213	4.52	.001
RSA/VT (ms/mL)	11.75	.001	.348	4.26	.001
logRSA/VT (log ms/mL)	14.14	.001	.391	5.18	.001
RSA/VTc (ms/mL)	11.44	.001	.342	4.15	.001
Test 1 and 2 (n = 16)
logRSA (log ms)	6.76	.003	.311	3.90	.001	4.90	.001
RSAc (ms)	7.93	.002	.346	4.09	.001	4.69	.001
logRSAc (log ms)	7.62	.002	.337	3.77	.004	5.05	.001
RSA/VT (ms/mL)	6.74	.002	.310	4.72	.001	4.06	.001
logRSA/VT (log ms/mL)	8.13	.001	.352	4.98	.001	4.54	.001
RSA/VTc (ms/mL)	6.87	.002	.315	4.53	.001	4.06	.001

Note: V_T = tidal volume; RSA = respiratory sinus arrhythmia; T_TOT = total respiratory cycle time; HR = heart rate; RSA/V_T = RSA normalized by V_T; c = adjusted for total respiratory cycle time; logRSA = logarithm(RSA+1); logRSA/V_T = logarithm(RSA/V_T)+1.

p-level of both tests Bonferroni-adjusted for all indices.