Enhancement of autonomic and psychomotor arousal by exposures to blue wavelength light: importance of both absolute and relative contents of melanopic component

Table 2 Repeated measures ANOVA of the effects of light color, session, and sex on heart rate and HRV indices

	Fixed effects								Post hoc multiple comparisons^a
	Color		Session		Color × session		Sex		Blue vs green		Blue vs white		Green vs white
	F _2,126	P	F _4,126	P	F _8,126	P	F _1,126	P	t ₁₂₆	P	t ₁₂₆	P	t ₁₂₆	P
Heart rate	8.56	0.0003	10.83	<0.0001	0.72	0.6	0.71	0.4	2.71	0.02	4.06	0.0003	1.36	0.5
LF power	6.64	0.001	2.82	0.02	0.47	0.8	0.28	0.5	−2.31	0.06	−3.59	0.004	−1.28	0.6
HF power	13.16	<0.0001	3.68	0.007	0.45	0.8	0.03	0.8	−3.56	0.001	−4.98	<0.0001	−1.42	0.4
LF/HF	0.64	0.5	0.16	0.8	0.44	0.8	0.29	0.5	1.13	0.7	0.60	1.0	−0.54	1.0

^aBonferroni adjustment
HF high-frequency component, LF low-frequency component, LF/HF LF-to-HF ratio in power

ISSN: 1880-6805