Figure 1.

Categorical perception using a nine steps continuum between the syllables [ba] and [pa]. In the identification test (A) dyslexic children before CMT (red) showed less steep intercategorical boundary than normal readers (blue) but a “normalization,” specifically for B5 and B6 after CMT (green). In the discrimination task (B), dyslexics before CMT (red) seemed to differ from normal readers (blue) for items at or close to the inter-categorical border (median peak in the figure) but these differences vanished after CMT (green).