COGS 154 Lecture Notes - Lecture 4: Language Delay, Screen One, Joint Attention

• School: UCSD
• Department: Cognitive Science
• Course: COGS 154
• Professor: Shengqi Yang

Document Summary

True babbling begins at about 6 months. Has the rhythm and intonation of adult speech. Protowords evident by 9 to 10 months. Consistent patterns of sound for specific objects or people. Gestures: before words are produced gestures are often used. Single words appear around one year of age. Gestures, babbling, and protowords used along with real words for several months. Average child produces: 50 words by 18 months of age, 200 words by 24 months, 10,000 words by age six; comprehend more than they can produce. Children begin to understand sounds that communicate needs, control others" behavior through social interactions. Requires joint focus of attention: both people focus attention on same object or event at the same time. Essential for development of important pragmatic language skills: conversational turn-taking result from joint attention. Children learn word meanings through parents" modeling and labeling of events- joint attention is very important.