Figure 2From: Towards a computational model of DyslexiaGrand Average ERPs to the two-tone stimulation. A. Controls B. Dyslexics. Trials are sorted according to the trial type, Bias+ (where the impact of previous trials improves performance) and Bias- (where the impact of previous trials impairs performance). Controls' P2 after the first tone differs between the two trial types. Dyslexics' evoked responses did not differ between the two trial types. Filled areas denote cross-subject SEM. Small black rectangles under the plots denote the temporal location of the two tones in the trial. Middle insets. P2 region enlarged; Top right insets. Single subject P2 area in Bias- versus Bias+ trials. The difference between the trial types is significantly larger among Controls than among Dyslexics (Condition × Group interaction: Mann-Whitney test, z = 2.5, P < 0.05).Back to article page