Fig. 2.
MMN paradigm on vowel length discrimination. ERP responses to standard and deviant stimuli, and ERP difference waves (deviant–standard) relative to syllable onset for both vowel length contrasts (long vowel deviant/ba:/– short vowel standard/ba/and short vowel deviant/ba/– long vowel standard/ba:/) across typically spelling and poor-spelling children. Grey-shaded areas indicate time windows of significant condition effects. As apparent from the difference wave, children show an MMN, followed by an LDN to the vowel length contrasts.