Table 1.

Participant demographics and descriptive statistics for the clinical behavioural measures for the TD, ASD, and ADHD participants.

	TD	ASD	ADHD
N	50	76	74
Sex (M:F)	36:14	58:18	56:18
Mean age (years; ±std.)	12.27 ± 4.19	12.81 ± 3.49	12.23 ± 2.92
Mean FD (mm; ±std.)	0.19 ± 0.06	0.21 ± 0.07	0.20 ± 0.07
Mean FSIQ (±std.)	111 ± 11	97 ± 20	105 ± 13
Mean CBCL-AP (±std.)	55 ± 8	88 ± 9	92 ± 10
Mean SCQ-TOT (±std.)	2 ± 2	19 ± 7	6 ± 5
Mean ABAS-GAC (±std.)	100 ± 14	69 ± 14	83 ± 14
Mean NEPSY-TM (±std.)	24 ± 3	21 ± 5	24 ± 3

TD typically developing, ASD autism spectrum disorder, ADHD attention-deficit/hyperactivity disorder, M male, F female, std standard deviation, FD framewise displacement, FSIQ full-scale intelligence quotient, CBCL-AP Child Behaviour Checklist attention problem subscale, SCQ-TOT Social Communication Questionnaire total scale, ABAS-GAC Adaptive Behaviour Assessment System’s General Adaptive Composite score, NEPSY-TM Developmental Neuropsychological Assessment Theory of Mind total score.