Table 1.

Demographic and cognitive characteristics of the participants

Subject	Hand	IQ			Subject	Hand	IQ			ADI-R			ADOS
		Verbal	Perf.	Full			Verbal	Perf.	Full	Social (10)	Com. (8)	RSB (3)	Social (4)	Com. (2)
C1	R	111	126	118	A1	R	124	93	111	16	21	7	5	2
C2	R	139	122	132	A2	R	114	123	118	24	17	9	12	4
C3	R	107	114	110	A3	R	108	122	114	30	26	12	9	6
C4	R	99	93	97	A4	R	100	69	86	25	23	7	3•	3
C5	R	116	126	121	A5	R	119	122	121	25	17	5	9	3
C6	R	111	108	110	A6	R	108	83	97	21	22	8	6	6
C7	R	86	99	91	A7	R	85	95	89	30	20	12	13	4
C8	R	114	112	113	A8	R	101	105	103	21	20	7	6	4
C9	R	130	97	116	A9	R	109	103	106	27	23	12	6	3
C10	R	130	123	128	A10	R	125	107	117	25	22	10	7	3
C11	R	86	93	89	A11	R	96	109	102	25	23	8	8	5
C12	R	120	112	117	A12	R	116	93	106	27	21	11	8	3
C13	L	110	110	110	A13	L	113	112	113	25	20	6	11	4
C14	R	116	117	117	A14	R	104	118	112	26	14	5	11	6
C15	L	122	92	109	A15	L	119	121	122	27	21	8	5	3

Left side: handedness and IQ scores of control participants (C1-C15). Right side: handedness, IQ scores, ADI-R and ADOS scores of individuals with ASD (A1-A15). In all cases, age differences between an individual with ASD and a matched control participant was ≤ 5 months. All subjects were males. (•) marks ADOS score that did not meet the criterion for ASD; nevertheless, this person was included into the ASD group because he had a psychiatric diagnosis of ASD and met all other criteria. Numbers in parentheses indicate cut-offs for ADI-R and ADOS subscales

Abbreviations: Perf. performance IQ, Com. communication, RSB repetitive and stereotyped behavior