Table S1.

Demographic and IQ measures

Measure	TD, n = 24	Population mean (SD)
Gender ratio, M:F	17:7
Age, y	10.22 ± 1.44
IQ, WASI scale
Full-scale IQ	119.08 ± 12.00	100 (15)
Verbal IQ	120.42 ± 13.87	100 (15)
Performance IQ	113.54 ± 13.80	100 (15)
Achievement, WIAT
Word reading	114.04 ± 9.18	100 (15)
Reading comprehension	114.79 ± 9.02	100 (15)

Demographic and mean IQ scores are shown for the full sample. F, female; M, male; TD, typically developing children; WIAT, Wechsler Individual Achievement Test.