Apprentissage de contrastes non-natifs : Limites des entraînements statistiques (Learning non-native contrasts: Limits of the statistical training) [in French]

________________________________________________________________________________________________________ Learning non-native contrasts: Limits of the statistical training Recently, studies showed that distributional information contained in the speech signal can contribute to the acquisition of phoneme categories. Indeed, exposition to bimodal distributions leads to an improvement of phoneme discrimination compared to unimodal distributions which did not improve speech perception. The aim of the present study was to determine to what extent distributional information (bimodal, unimodal, uniform) can induce change in allophonic fine-grained speech perception (i.e. 20 or 30 ms of Voice Onset Time – VOT). Results showed that despite discrimination improvement across some voicing contrasts, extraction of statistical regularities remains difficult for small acoustic differences. MOTS-CLES : Entraînements statistiques, Perception de la parole, Voisement.