Processing pronunciation variants: the role of probabilistic knowledge about lexical form and segmental co-occurrence

Two experiments investigated the contribution of lexical knowledge to processing nasal flap variants (e.g. “mental” produced as “mennle”). High and low variant production frequency nasal flap words and nonword counterparts were presented in a “t” detection task. More “t” detections were found in high than low variant frequency nasal flap words; no difference was found in control nasal flap nonwords but control nonwords with a nasal had more “t” detections than nonwords without a nasal. The findings suggest that access to lexical knowledge of an alternative NT pronunciation is modulated by variant frequency of the reduced form and pre-lexical phonotactic knowledge.