Figure 1.

Waveforms of acoustic stimuli used in the experiments: all stimuli were composed of the same first syllables [pa] and [ta], which were recombined (after a 275 silent closure) with the second syllables [ku], [ko], [ke] [ki], and a matched non-speech sound. The stimuli were maximally matched for their acoustic properties, whilst their lexical status as familiar or novel items was systematically modulated.