PSYC3016 Lecture Notes - Lecture 21: Habituation, 18 Months, Animal Communication
Document Summary
Infant vocalisation: 2 month olds coo, produce simple speech sounds goo, ahh and vocal gymnastics (smacks, clicks, bubbles) Imitate sounds of their partners, high pitched for mum and lower for dad. Increase in vocal complexity: 6 month olds babbles, repeated consonant vowels patterns that become more varied, 10 month-olds: native language specific babbling, 12 month olds: first words. Categorical perception: habituation method tests category- discriminating in infants, organisations form the first days of life, newborns perceive phonemes categorically. If you habituate to a certain phoneme, it sucking will go down as they hear the phoneme more, if you change the phoneme, it goes up. If you change the acoustic, not enough for them to care, still habituated. Patterns of language development: host properties, e. g. stress patterns, any utterance with only one stressed syllable, children use these cue to segment these speech streams into words.
