Table 2.

Summary of Analyses of Variance (ANOVA) on participants' facial muscle responses for zygomaticus major, corrugator supercilii, and medial frontalis muscle regions^a.

Facial EMG Muscle Region Response
Source	Zygomaticus	Corrugator	Frontalis
GROUP (G)
F; p-value	5.07; 0.028	0.04; 0.85	0.18; 0.68
${\eta }_p^2$	0.09
MSE	5.36
df, dfe	1, 53
EMOTION (E)
F	27.53;<0.001	27.16;<0.001	27.3;<0.001
${\eta }_p^2$	0.34	0.34	0.34
MSE	2.3	1.56	1.08
df, dfe	2.06, 109.24	2.11, 109.73	2.6, 135
E × G
F	11.25;<0.001	2.46; 0.09	3.74; 0.017
${\eta }_p^2$	0.18		0.07
MSE	2.3		1.08
df, dfe	2.06, 109.24		2.6, 135
CHANNEL (C)
F	5.27; 0.007	0.57; 0.57	1.62; 0.20
${\eta }_p^2$	0.09
MSE	0.42
df, dfe	2, 106
E × C
F	1.76; 0.11	3.08; 0.002	4.13;<0.001
${\eta }_p^2$		0.06	0.07
MSE		0.25	0.32
df, dfe		8, 416	5.84, 303.77

${\eta }_p^2$, partial eta-squared; MSE, mean square error; df, degrees of freedom; dfe, degrees of freedom error.

^aStatistically significant F-tests (p < 0.05) are highlighted in boldface. The factors G × C and G × E × C were not significant for any analysis, and were not included in the table.