Commentary: Revisiting vocal perception in non-human animals: a review of vowel discrimination, speaker voice recognition, and speaker normalization

1 School of Communication Sciences and Disorders, Centre for Research on Brain, Language, and Music, McGill University, Montreal, QC, Canada, Department of English and Center on Autobiographical Memory Research, Department of Psychology, Aarhus University, Aarhus, Denmark, Department of Psychology and Program in Linguistics, The Pennsylvania State University, University Park, Pennsylvania, PA, USA