The neural correlates of visuo-spatial working memory in children with autism spectrum disorder: effects of cognitive load

Table 1 Demographic and neuropsychological test characteristics of study sample

Variables	ASD (N = 19)		TD (N = 17)		Significance test
	%	Mean (SD)	%	Mean (SD)
Demographic data
Sex (male)	84.21		76.47		χ²₍₁₎ = 0.34, p = 0.56
Age		11.05 (1.43)		11.12 (2.00)	t₍₃₄₎ = 0.11, p = 0.91
IQ		109.42 (15.72)		115.35 (9.27)	t₍₃₄₎ = 1.36, p = 0.18
ADOS Total		9.68 (2.3)^a		N/A
Neuropsychological test data (WMTB-C)
Digit recall		107.59 (19.53)		116.00 (15.64)	t₍₃₄₎ = 1.51, p = 0.14
Block recall		95.58 (18.03)		105.35 (20.72)	t₍₃₄₎ = 1.51, p = 0.14
Mazes memory		95.42 (18.58)		96.35 (23.49)	t₍₃₄₎ = 0.13, p = 0.90
Listening recall		102.95 (15.77)		116.76 (17.72)	t₍₃₄₎ = 2.48, p = 0.02*
Backward digit recall		94.05 (18.79)		109.18 (21.09)	t₍₃₄₎ = 2.28, p = 0.03*

*p < 0.05. ^aADOS scores can range from 3–20, with higher scores reflecting greater symptom severity.

ISSN: 1866-1955