Table 1.

Measures of heart rate variability. All values are mean ± SD

	EYT-A: ‘I Think The Saying’
	EYT-A	CE1-A	CE2-A	Rest-A
RR [ms]***	739 ± 82	731 ± 73	744 ± 97	847 ± 109a,b,c
SDNN [ms]***	61 ± 25	54 ± 22	44 ± 16a,d	67 ± 36
VLF [ln ms2]	6.68 ± 0.67	6.62 ± 0.80	6.42 ± 0.67	6.92 ± 0.75
LF [ln ms2]***	7.31 ± 0.84b,c,d	6.98 ± 0.90	6.52 ± 0.87	6.94 ± 1.09
HF [ln ms2]**	5.51 ± 1.00	5.44 ± 0.90	5.04 ± 0.88	6.17 ± 1.08b,c
Peak osc. VLF [Hz]**	0.019 ± 0.008	0.028 ± 0.013c,d	0.013 ± 0.008	0.016 ± 0.011
Peak osc. LF [Hz]	0.081 ± 0.020	0.078 ± 0.027	0.079 ± 0.020	0.090 ± 0.025
Peak osc. HF [Hz]*	0.178 ± 0.037c	0.208 ± 0.063	0.238 ± 0.081	0.226 ± 0.062
	EYT-B: ‘Migraine B’
	EYT-B	CE1-B	CE2-B	Rest-B
RR [ms]***	774 ± 100c	730 ± 96	620 ± 117	878 ± 109b,c
SDNN [ms]***	138 ± 43	118 ± 46	33 ± 14a,b,d	73 ± 36a
VLF [ln ms2]***	9.32 ± 0.82b,c,d	6.31 ± 0.75	6.04 ± 0.80	7.05 ± 1.39
LF [ln ms2]***	7.91 ± 1.00	8.98 ± 1.12d	5.47 ± 1.29a,b	6.97 ± 1.07
HF [ln ms2]***	6.68 ± 1.04	6.56 ± 1.05	3.82 ± 1.39a,b,d	6.39 ± 1.07
Peak osc. VLF [Hz]***	0.026 ± 0.004c,d	0.018 ± 0.013	0.008 ± 0.007	0.012 ± 0.009
Peak osc. LF [Hz]**	0.058 ± 0.021d	0.070 ± 0.011	0.072 ± 0.025	0.090 ± 0.030
Peak osc. HF [Hz]**	0.185 ± 0.048	0.185 ± 0.041	0.206 ± 0.075	0.236 ± 0.058a,c

‘Peak osc.’ denotes the peak oscillation in the respective frequency band

* p_Friedman < 0.05, ** p_Friedman < 0.01, *** p_Friedman < 0.001

^a p < 0.05 vs. EYT, ^b p < 0.05 vs. CE1, ^c p < 0.05 vs. CE2, ^d p < 0.05 vs. Rest