4: Psycholinguistics of Learning Sounds Last updated Save as PDF Page ID 9612 Catherine Anderson McMaster University via eCampusOntario 4.1: Phonemes and Contrast 4.2: Allophones and Predictable Variation 4.3: Phonetic Segments and Features 4.4: Practice Time 4.5: Natural Classes 4.6: Summary 4.7: Phonological Derivations