PSY E112 Lecture Notes - Lecture 4: Nonverbal Communication, 18 Months, Psy
Document Summary
Infant- directed talk (idt): exaggerated expressive verbal and nonverbal communication used with infants vocab, exaggerated facial expressions. Speak slower, higher pitched voice (emotionally expressive) voice, less complex. Infants preferentially respond as early as 1 month old (context dependent- Tone- helps infants distinguish encouragement and discouragement preferred when with strangers) Infants turn head in response to all sounds until 12 months old; then only turn head in response to language spoken in homes. Brain changes change the way they hear spoken language (limits their ability to distinguish phonemes) Language development behaviour continues, babies produce more and more sounds. Crying: first 2 months; sole means for verbal communication. Cooing: first speech like sounds (8-10 weeks old); made for their own amusement. Interaction and increased sound production: as people interact with them as their. Babbling: 7 months old (depends on when baby mixes consonant and vowel.
