Table 1.

Participants' characteristics.

	ASD	Controls	χ 2 / t value	P value
N and DSM-IV diagnosis	7 Autistic Disorder  5 Asperger's  2 PDD-NOS	14
Age	14.5 ±2. 8	13.8 ±2. 8	0.66	0.52
Male/female	13/1	11/3	n/a	0.16
Handedness ∗	0.8 ±0.3	0.8 ±0.2	0.46	0.65
IQ	106.5 ±19.2	110.3 ±15.8	0.57	0.58
SRS ∗	104.6±21.5	n/a	n/a	n/a
SES ∗	48.2±10.5	49.2±9.2	0.23	0.82

∗ handedness scores were obtained using the Annett handedness questionnaire [38]; SRS (Social Responsiveness Scale) is a brief informant-based measurement of autism traits [40]; SES (Socioeconomic Status) scores based on the Barratt modified measure of social status [41].