Table 3.

Proportion of facial signals with an onset before or after the start of a question (Q) or a response (R).

Signal	Stats	Onset Signal < Onset Utterance		Onset Signal > Onset Utterance
		Q	R	Q	R
Eyebrow frowns	%	53	37	47	63
	Mdn	−267	−329	230	601
	min	−12,495	−8757	0	0
	max	−1	−1	8695	14,134
Eyebrow raises	%	50	53	50	47
	Mdn	−200	−200	439	680
	min	−18,599	−10,647	0	0
	max	−1	−1	10,308	13,757
Eyebrow frown raises	%	54	47	46	53
	Mdn	−242	−346	340	788
	min	−6293	−5844	0	0
	max	−5	−14	4815	8988
Eyebrow unilateral raises	%	25	29	75	71
	Mdn	−156	−159	800	924
	min	−3146	−3485	0	0
	max	−1	−22	11,725	13,894
Eye widenings	%	48	38	52	62
	Mdn	−230	−180	319	434
	min	−6600	−2302	0	0
	max	−2	−1	7356	8139
Squints	%	45	31	55	69
	Mdn	−214	−324	362	968
	min	−8273	−6996	0	0
	max	−1	−2	8040	10,792
Blinks	%	25	23	75	77
	Mdn	−108	−111	688	960
	min	−1080	−1142	0	0
	max	−1	−1	12,960	17,694
Gaze shifts	%	55	59	45	41
	Mdn	−456	−528	344	563
	min	−7000	−12,418	0	0
	max	−1	−2	10,760	16,894
Nose wrinkles	%	41	41	59	59
	Mdn	−94	−185	198	403
	min	−1320	−1320	0	0
	max	−3	−2	2591	9656
Pressed lips	%	9	18	91	82
	Mdn	−360	−662	1048	496
	min	−1029	−2061	201	50
	max	−160	−266	4440	5200
Mouth corners down	%	29	26	71	74
	Mdn	−238	−333	1108	562
	min	−1320	−2304	0	0
	max	−5	−80	3937	6225
Smiles	%	58	63	42	37
	Mdn	−897	−881	588	672
	min	−12,840	−11,554	0	0
	max	−1	−1	7977	15,650

Note: % indicates the proportion of the signal (split between signals occurring with questions and those with responses) with an onset before the utterance onset (left two columns), or after the utterance onset (right two columns), Mdn = median, min = minimum, max = maximum (all in milliseconds).