Table 3.

Effects on pupil size for prosody and sounds.

		Null model comparsiona			Interaction			Emotion
Stimulus	Time steps	χ2	df	p	χ2	df	p	χ2	df	p
Prosody	0.5–1.5	9.86	5	0.079.		2
	1.5–2.5	5.56	5	0.351
	2.5–3.5	11.56	5	0.041∗	0.786	2	0.675	10.66	2	0.005∗∗
	3.5–4.5	11.82	5	0.037∗	1.63	2	0.444	9.108	2	0.011∗
	4.5–5.5	7.722	5	0.172
Sound	0.5–1.5	1.74	2	0.419
	1.5–2.5	4.29	2	0.117
	2.5–3.5	6.95	2	0.031∗
	3.5–4.5	12.81	2	0.002∗∗
	4.5–5.5	6.07	2	0.048∗

^aFor the sounds, the emotion effect is reflected by the null model comparison. Presented are the results of the model comparison for each time segments. Asterisks mark the significance level: ^∗p < 0.05, ^∗∗p < 0.01.