TABLE 1

DISTRIBUTION OF AYSMMETRY FOR EACH ACTION UNIT BY MODE OF REQUEST, VERBAL DESCRIPTION VERSUS IMITATING A MODEL

AU 1 - INNER BROW RAISE

	Verbal	Visual	Combined
Left	-	12	-
Right	-	10	-
Symmetrical	-	9	-
Total Ss	-	31	-
Lf vs. Rt Prob.	-	n.s.	-

AU 2 - OUTER BROW RAISE

	Verbal	Visual	Combined
Left	-	8	-
Right	-	17	-
Symmetrical	-	7	-
Total Ss	-	32	-
Lf vs. Rt Prob.	-	n.s.	-

AU 1+2 - BROW RAISE

	Verbal	Visual	Combined
Left	9	8	9
Right	20	20	22
Symmetrical	4	4	2
Total Ss	33	32	33
Lf vs. Rt Prob.	.06	.04	.03

AU 4 - LOWER BROW

	Verbal	Visual	Combined
Left	14	14	18
Right	6	6	7
Symmetrical	12	11	7
Total Ss	32	31	32
Lf vs. Rt Prob.	n.s.	n.s.	.04

AU 6 - SQUINT

	Verbal	Visual	Combined
Left	5	-	-
Right	11	-	-
Symmetrical	13	-	-
Total Ss	29	-	-
Lf vs. Rt Prob.	n.s.	-	-

AU 7 - SQUINT

	Verbal (in squint)	Visual	Combined
Left	7	14	16
Right	10	9	10
Symmetrical	16	8	7
Total Ss	33	31	33
Lf vs. Rt Prob.	n.s.	n.s.	n.s.

AU 6+7 - SQUINT

	Verbal	Visual	Combined
Left	10	-	-
Right	10	-	-
Symmetrical	13	-	-
Total Ss	33	-	-
Lf vs. Rt Prob.	n.s.	-	-

AU 9 - WRINKLE NOSE

	Verbal	Visual	Combined
Left	4	6	6
Right	15	15	20
Symmetrical	12	9	6
Total Ss	31	30	32
Lf vs. Rt Prob.	.02	.08	.01

AU 10 - RAISE UPPER LIP

	Verbal	Visual	Combined
Left	12	9	14
Right	6	6	9
Symmetrical	4	1	2
Total Ss	22	16	25
Lf vs. Rt Prob.	n.s.	n.s.	n.s.

AU 12 - SMILE

	Verbal	Visual	Combined
Left	17	24	23
Right	11	6	10
Symmetrical	5	2	0
Total Ss	33	32	33
Lf vs. Rt Prob.	n.s.	.001	.04

AU 15 - LOWER LIP CORNERS

	Verbal	Visual	Combined
Left	-	4	-
Right	-	13	-
Symmetrical	-	8	-
Total Ss	-	25	-
Lf vs. Rt Prob.	-	.05	-

AU 16- LOWER LIP PULLED DOWN

	Verbal	Visual	Combined
Left	-	7	-
Right	-	9	-
Symmetrical	-	12	-
Total Ss	-	28	-
Lf vs. Rt Prob.	-	n.s.	-

AU 20 - LIP STRETCHED TO SIDES

	Verbal	Visual	Combined
Left	8	7	9
Right	10	19	20
Symmetrical	8	2	1
Total Ss	26	28	30
Lf vs. Rt Prob.	n.s.	.03	.06

AU 45 - WINK

	Verbal	Visual	Combined
Left	3	-	-
Right	4	-	-
Symmetrical	26	-	-
Total Ss	33	-	-
Lf vs. Rt Prob.	n.s.	-	-

Eyes Closed (during blink)

	Verbal	Visual	Combined
Left	7	-	-
Right	21	-	-
Symmetrical	5	-	-
Total Ss	33	-	-
Lf vs. Rt Prob.	.01	-	-

NOTE: All probabilities are two-tailed binomials, p=q, and are reported only if < .1. Combined scores were calculated by averaging scores for all the individual actions for both the verbal and visual requests, and are not totals or averages of the entries in the "Verbal" and "Visual" columns.

TABLE 2

DISTRIBUTION OF ASYMMETRY FOR EACH AU FOR FOUR MEASURES: BILATERAL ASYMMETRY, BETTER UNILATERAL CONTROL, FAVORED UNILATERAL SIDE, AND SIDE RATED EASIER

AU 1 - INNER BROW RAISE AU 2 - OUTER BROW RAISE

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	12	8	8	6
Right	10	10	7	14
Symmetrical	9	13	13	13
Total Ss	31	31	28	33
Lf vs. Rt Prob.	n.s.	n.s.	n.s.	n.s.

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	8	8	7	4
Right	17	16	17	12
Symmetrical	7	6	4	17
Total Ss	32	30	28	33
Lf vs. Rt Prob.	n.s.	n.s.	.06	.08

AU 1+2 - BROW RAISE

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	9	7	6	7
Right	22	19	18	12
Symmetrical	2	5	8	14
Total Ss	33	31	32	33
Lf vs. Rt Prob.	.03	.03	.02	n.s.

AU 4 - LOWER BROW

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	18	8	6	6
Right	7	4	3	15
Symmetrical	7	17	20	12
Total Ss	32	29	29	33
Lf vs. Rt Prob.	.04	n.s.	n.s.	.08

AU 6/7- SQUINT

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	10	15	15	7
Right	10	14	17	8
Symmetrical	13	4	1	18
Total Ss	33	33	33	33
Lf vs. Rt Prob.	n.s.	n.s.	n.s.	n.s.

AU 9 - NOSE WRINKLE

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	6	14	9	9
Right	20	9	17	11
Symmetrical	6	6	3	13
Total Ss	32	29	29	33
Lf vs. Rt Prob.	.01	n.s.	n.s.	n.s.

AU 10 - RAISE UPPER LIP

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	14	15	12	12
Right	9	9	15	13
Symmetrical	2	5	2	8
Total Ss	25	29	29	33
Lf vs. Rt Prob.	n.s.	n.s.	n.s.	n.s.

AU 12 - SMILE

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	23	17	12	6
Right	10	5	21	6
Symmetrical	0	11	0	21
Total Ss	33	33	33	33
Lf vs. Rt Prob.	.04	.02	n.s.	n.s.

AU 20 - LIP STRETCH TO SIDES

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	9	15	14	4
Right	20	6	17	5
Symmetrical	1	10	0	24
Total Ss	30	31	31	33
Lf vs. Rt Prob.	.06	.08	n.s.	n.s.

AU 45 - WINK/BLINK

	Bilateral Asymmetry	Better Unilateral	Favored Side	Rated Easier
Left	3	9	9	6
Right	4	9	24	9
Symmetrical	26	15	0	18
Total Ss	33	33	33	33
Lf vs. Rt Prob.	n.s.	n.s.	.01	n.s.

NOTE: Probability values are two-tailed binomials and are reported only when less than .1. See Figure 3 for definitions and discussion of scores.

TABLE 3

NUMBER OF REPETITIONS OF REQUESTED, BILATERAL ACTIONS RELATED TO THE PROPORTION OF ASYMMETRICAL ACTIONS AND THE PROPORTION OF ASYMMETRICAL ACTIONS THAT WERE LEFT STRONGER

TABLE 4

SUMMARY OF LATERALITY BY ACTION FOR EACH ASYMMETRY MEASURE

NOTE: In the column headed "Side", lower case denotes nominally more left (l) or right (r) subjects. Upper case denotes a difference with p<.1 (two-tailed binomial); nd denotes no difference in right vs left. In the columns headed "%L" and "%R" are the proportions of subjects who showed left and right asymmetry, respectively, of all subjects who showed the action. AUs 15, 16, and eye closure were not assessed in better unilateral, favored side, and ratings.

* p <.05 (two-tailed binomial)

+ AU 20 was significantly lateralized for the visual requests ( p < .05), but not when combined with the verbal requests ( p < .06).

TABLE 5

SIGNIFICANT CHANGES IN THE PROPORTION OF SUBJECTS WHO SHIFTED LATERALITY (RIGHT VS. LEFT) BETWEEN PAIRS OF ASYMMETRY MEASURES

TABLE 6

CORRELATIONS BETWEEN MEASURES OF ASYMMETRY

# The two actions requested which had the lowest variance in each condition are marked with #. This low variance could explain some of the low correlations, but not others.

NOTE: Probability values are reported only when less than .1. See Figure 3 for definitions of scores.

TABLE 7

NUMBER OF SIGNIFICANT CORRELATIONS BETWEEN DIFFERENT ASYMMETRY MEASURES IN TABLE 6, EXCLUDING TIMING OF EYELID CLOSURE
(maximum 10 posible in each cell)

	Better Unilateral	Rated Easier	Favored Side	Bilateral Asymmetry
Better Unilateral	-	7	7	6
Rated Easier	7	-	5	3
Favored Side	7	5	-	3
Bilateral Asymmetry	6	3	3	-
Totals	20	15	15	12

TABLE 8

FACTORS AND LOADINGS FOR TWO ANALYSES REGARDING ASYMMETRY OF BILATERAL AND UNILATERAL ACTIONS

TABLE 9

SIGNIFICANT CORRELATIONS BETWEEN DIFFERENT ACTION UNITS WITHIN EACH SET OF ASYMMETRY MEASURES

TABLE 10

FACTORS AND LOADINGS FOR EACH ACTION UNIT WITHIN FOUR ASYMMETRY MEASURES

TABLE 11

SIGNIFICANT CORRELATIONS BETWEEN DIFFERENT ACTION UNITS BETWEEN DIFFERENT SETS OF ASYMMETRY MEASURES