Child Development Laura E. Berk 7th edition Chapter 9 Language Development • • • This multimedia product and its contents are protected under copyright law. The following are prohibited by law: Any public performance or display, including transmission of any image over a network; Preparation of any derivative work, including the extraction, in whole or in part of any images; Any rental, lease, or lending of the program. © Allyn & Bacon/ Longman 2007 Components of Language Phonology Rules about structure and sequence of speech sounds Semantics Vocabulary - words and word combinations for concepts Grammar • Syntax - rules for sentences • Morphology - grammatical markers Pragmatics Appropriate and effective communication © Allyn & Bacon/ Longman 2007 Three Theories of Language Development Behaviorist Nativist Interactionist Learned through operant conditioning (reinforcement) and imitation Language Acquisition Device (LAD) biologically prepares infants to learn rules of language through universal grammar Inner capacities and environment work together; Social context is important © Allyn & Bacon/ Longman 2007 Support for Biological Language Preparedness • Animal language Language seems to be unique to humans • Brain structures Regions predisposed to language processing • Sensitive period During brain lateralization © Allyn & Bacon/ Longman 2007 Deaf Children’s Language Deaf children develop language even when they have: • Minimal input Later than hearing children, but do develop Homesign • Inconsistent input Extract rules © Allyn & Bacon/ Longman 2007 Language Areas of the Brain © Allyn & Bacon/ Longman 2007 Interactionist Theories of Language Development • Information-Processing Theories Statistical learning theory Brain studies • Social Interactionist Theories Native desire for understanding combines with rich language environment © Allyn & Bacon/ Longman 2007 Getting Ready to Talk: Receptivity to Language • Newborns sensitive to speech Especially mother’s • Categorical speech perception Ability to distinguish phonemes • Statistical analysis, rule-learning • Child-directed speech © Allyn & Bacon/ Longman 2007 First Speech Sounds • Cooing - 2 months Vowel sounds • Babbling - 4 months Consonants & vowels Universal timing Range expands © Allyn & Bacon/ Longman 2007 Becoming a Communicator • Joint attention • Give-and-take • Preverbal gestures Protodeclarative Protoimperative • Word-gesture combinations © Allyn & Bacon/ Longman 2007 Parental Responsiveness and Language Learning © Allyn & Bacon/ Longman 2007 Phonological Development • Early Phase First words - can only pronounce few sounds Related to semantic development Understand more than can say • Phonological Strategies • Later development Refine syllable stress patterns - related to meaning © Allyn & Bacon/ Longman 2007 One-Year-Olds Know Pronunciations © Allyn & Bacon/ Longman 2007 Phonological Progress • • • • • Minimal Words Add ending consonant Adjust vowel length Add unstressed syllables Produce full word, correct stress pattern May still need to refine sounds © Allyn & Bacon/ Longman 2007 Early Semantic Development • Comprehension before production 5 month lag • First words linked to cognition, emotion • Vocabulary spurt 18-24 months Fast-mapping © Allyn & Bacon/ Longman 2007 Individual Differences in Language Development • Gender • Temperament • Language environment • Language Style Referential Expressive © Allyn & Bacon/ Longman 2007 Types of Early Words Object and Action • More objects than actions • Objects are easier concepts, parents rarely name verbs • Influenced by culture & language State • Modifiers or labels for attributes size, color, possession • Learn general distinctions before specific © Allyn & Bacon/ Longman 2007 Preschoolers’ Semantic Development • • • • Underextensions Overextensions Word coinages Metaphors © Allyn & Bacon/ Longman 2007 Elementary School-Age Semantic Development • Big vocabulary increase Fast-mapping continues Analyze word structure • Use words precisely, understand multiple meanings - metaphors, puns © Allyn & Bacon/ Longman 2007 Adolescent Semantic Development • Abstract terms • Sarcasm, irony • Figurative language Proverbs © Allyn & Bacon/ Longman 2007 Factors Contributing to Semantic Development • Adult feedback • Cognitive processing Working memory - phonological store • Strategies Lexical contrast Mutual exclusivity bias Syntactic bootstrapping Social information © Allyn & Bacon/ Longman 2007 Early Grammatical Development • Telegraphic speech 2-word combinations • Simple sentences 3 words Follow adult rules piecemeal, gradually refine and generalize © Allyn & Bacon/ Longman 2007 Development of Grammatical Morphemes • Structural complexity affects order acquired • Overregulation Applying rules without appropriate exceptions © Allyn & Bacon/ Longman 2007 Complex Grammatical Forms Negatives Questions Other Complex Constructions • Nonexistence • Rejection • Denial •Rising intonations •Subject-verb inversion •Correct yes-no questions precede wh- questions • Connectives • Embedded sentences • Tag questions • Indirect object-direct object • Passive sentences © Allyn & Bacon/ Longman 2007 Views on Grammar Development Product of cognitive development • Semantic bootstrapping • Direct observation of language structure • Categories for bootstrapping Inborn capacities • Language-making capacity Environmental support • Adults correct indirectly with reformulations • Asking for clarification • Recasts • Expansions © Allyn & Bacon/ Longman 2007 Pragmatic Development • 2-year-olds can have effective conversations • Early childhood - turnabout • Middle childhood Shading Illocutionary knowledge © Allyn & Bacon/ Longman 2007 Factors that Enhance Pragmatic Development • Adult interactions Conversations Dialogues about storybooks, shared reading • Siblings © Allyn & Bacon/ Longman 2007 Testing Referential Communication Skills © Allyn & Bacon/ Longman 2007 Development of Narrative Skills • Leapfrog narratives - 4 years Few evaluations • Chronological narratives - 4-1/2 to 5 years • Classical narratives - 6 years • Narrative styles learned from adults Topic-associating style Haiku style © Allyn & Bacon/ Longman 2007 Speech Registers • Social routines • Polite language • Children sensitive to speech registers early 4-7 years • Important to social acceptance © Allyn & Bacon/ Longman 2007 Metalinguistic Awareness • Ability to think about language as a system • 4- and 5-year-olds have early understanding • Flowers in middle childhood Phonological awareness associated with reading success Advanced in bilingual children © Allyn & Bacon/ Longman 2007 Learning Two Languages Learn both at • No problems with language the same development time • Good at both by preschool Takes 3 to 5 years to be as good as One, then the same-age native speakers of second other language Both offer cognitive advantages of bilingualism • Attention, reasoning, concepts, flexibility • General language skills © Allyn & Bacon/ Longman 2007 Types of Bilingual Education • Language immersion Strong in Canada • English-only Favored in U.S. Risk of semilingualism • Bilingual education Support and instruction in native language while learning English © Allyn & Bacon/ Longman 2007