Table 4.

Correlations of action units across the face for each participant

Case	Upper face		Lower face		Between upper and lower
	Action units	r	Action units	r	Action units	r
A	1 & 2	.88	10 & 12	−.26	1 & 10, 18, 20, 23	.21 – .43
	2 & 43	.24	10 & 20	.65	2 & 10, 18, 20, 23	.25 – .45
	4 & 1, 2, 5, 43	−.56 − −.23	12 & 20	−.29	4 & 12	−.58
	5 & 1, 2	.61			4 & 20	−.25
	5 & 43	−.21			5 & 10	.48
	6 & 1, 2, 4, 5	−.31 − −.23			5 & 20	.76
					6 & 12	.65
B	1 & 2	.96	N/A		12 & 1, 2, 5, 6	.24 – .55
	1 & 5	.77
	2 & 5	.80
	6 & 1, 2, 5, 43	.30 – .50
C	1 & 2, 4, 6, 7	.53 – .97	12 & 14	−.69	1 & 14, 17, 28	−.30 − −.25
	2 & 4, 6, 7	.48 – .69	14 & 28	−.33	2 & 14, 17, 28	−.29 − −.24
	4 & 6	.40	17 & 28	.71	6 & 14	.44
	4 & 7	.76			6 & 17, 28, 37	−.52 − −.22
	6 & 7	. 53			7 & 17, 28	−.20
					12 & 1, 2, 4, 7	.43–.59
D	1 & 2	.99	12 & 17	−.24	1 & 17	.89
			14 & 18	.21	2 & 17	.90
					6 & 12	.73
					12 & 1, 2	−.23
E	1 & 2	.61	N/A		6 & 12	.94
	2 & 4	.56
F	1 & 2	.83	N/A		4 & 17	−.34
	1 & 4	−.37
	1 & 6	−.26
	1 & 45	.30
	2 & 4	−.43
	2 & 6	−.20
	2 & 45	.36
	4 & 6	.66
	4 & 45	−.20
G	1 & 2	.87	N/A		6 & 12	.72
H	N/A		12 & 17	−.23	N/A

Notes: In the action unit columns numbers reported refer to the specific AUs: 1 = inner brow raise, 2 = outer brow raise, 4 = brow lowerer, 5 = upper lid raiser, 6 = cheek raise, 7 = lids tight, 10 = upper lip raiser, 12 = lip corner puller, 14 = dimpler, 17 = chin raiser, 20 = lip stretch, 28 = lip suck, 45 = blink. N/A indicates there were no correlations in that region of the face. Ranges are given when action units are correlated with three or more other action units in that region of the face in the same direction. All correlations have an n = 600 and p < .00001.