Table 1. Demographic data of the participants.

Measure	Female	Male	p value
	(n = 42)	(n = 43)
Age (SD)	22.4 (4.2)	23.8 (3.9)	0.12
(range)	(18–39)	(19–35)
Handedness: Right / Left a	42/0	43/0	-
RMS Mean Displacement (mm)	0.03	0.03	0.77
SD	0.01	0.01
Mean FD (mm)	0.13	0.13	0.46
SD	0.05	0.04
Autism spectrum traits
Total AQ (SD)	15.0 (6.5)	17.5 (5.8)	0.07
Social interaction (SD)	11.3 (6.1)	13.7 (5.2)	0.06
Social skills (SD)	2.5 (2.3)	3.3 (1.9)	0.11
Communication (SD)	2.7 (2.3)	2.5 (1.9)	0.66
Attention switching (SD)	4.1 (2.1)	4.4 (1.8)	0.59
Imagination (SD)	1.9 (1.1)	3.5 (1.6)	< 0.001*
Attention to detail (SD)	3.6 (2.3)	3.8 (1.9)	0.84

AQ, autism spectrum quotient; FD, frame-wise displacement; RMS, root mean square;

^a Assessed by the Edinburgh handedness inventory.

All participants were right-handed.

*p < 0.01, with independent-samples t-test.