ECE1201 Lecture Notes - Lecture 5: Phonemic Awareness, Fetus, 18 Months
Document Summary
Thursday february 6th, 2020 | week 5 | ece1201. Hart and risely: vocabulary exposure differed by ses, by kindergarten, 30-million-word gap. Consistent patterns of sound simplification: 19-24 months, approximately 25-50% intelligible. 12 months: imitate consonant and vowel combinations. 0-3 months: discriminate between harsh and soothing voices. 3-6 months: begins to understand no , vocalizations vary and express more meaning (displeasure, hunger). 6-9 months: attends to pictures, shouts to gain attention, wave. 10-15 months: first word, shakes head no, follows 1-step directions, expands language understanding. 18 months: understand approximately 50 words, produce 15 meaningful words. Words are learned within a social context: direct and vicarious experiences. Older infants may use intonation and gestures to indicate syntactic knowledge. Around 28 months, begin to use word order for comprehension. Develops through listening to language around them. Limited morphemic knowledge until more language is produced. Begin using inflectional morphemes: plurality: cat-cats, verb tense: present progressive, --ing, possessive: dog"s ball.
