been shown to perform more poorly than those without ASD, and for the significant inter-individual variability present in those with ASD. In support of this position are two demonstrations where reduced task performance can be accounted for by what may be termed “noise.” For example, thresholds for detecting coherent motion can be artificially inflated by transient lapses of attention (McAnally et al., 2001), and intra-individual response variability is a strong predictor of success in the Go No-Go task (Bellgrove et al., 2004), suggesting that lower sensitivity to coherent motion and failure to inhibit prepotent responses, both of which have been reported in those with ASD (see Ozonoff et al., 1994; Milne et al., 2002 respectively), may arise due to increased neural noise rather than reflecting a specific impairment in either motion perception or in response inhibition, as is the current interpretation of these data (see also Baron-Cohen and Belmonte, 2005 for a similar argument).
