Table 8.

Candidate neuropsychological biomarkers investigated in at least two studies, with at least one positive finding, in relation to autism spectrum disorder

Biomarker	Number of significant effects	Number of non‐significant effects	Direction	Rate of replication (%)
Long‐term memory	2	0	Two decreased	100
Short‐term memory	5	0	Five decreased	100
Working memory	4	1	Four decreased	80
Face/emotion recognition accuracy	3	1	Three decreased	75
Reaction time variability	5	2	Five increased	71
Ex‐Gaussian tau	2	1	Two increased	67
Motor coordination	2	1	Two decreased	67
Other memory measures	3	2	Three decreased	60
Other task accuracy measures	3	3	Three decreased	50
Reaction time frequency measures	2	4	Two increased	33
Face/emotion recognition speed	2	1	One increased, one decreased	33
Mean reaction time	1	8	One increased	11