Chapter 2-An Overview of Communication Development.ppt

1、Chapter 2: An Overview of Communication Development,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Focus Questions,This chapter is designed to answer the following questions: What is co

2、mmunicative competence? What is the foundation for communicative competence? What are major communicative milestones in infancy and toddlerhood? What are major communicative milestones in preschool and school-age children?,2.1,Justice Communication Sciences and Disorders: An Introduction,Copyright 2

3、006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Introduction,To understand communication disorders, we first must understand how communication skills develop in “typical” populationsPeople all around the world reach communication milestones at roughly the sam

4、e ages and in the same order,2.2,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Chapter Objectives,Define communicative competence Describe the foundation for communicative competence D

5、etail the major speech and language milestones from birth to adolescence Discuss important multicultural issues in language and speech development,2.3,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All righ

6、ts reserved.,Case Study #1: Leon Turner,2-year old with fraternal twin Lionel, and 6-year old sister Leona children of professionals in Texas Parents concerned about Leon because, unlike Lionel, does not inflect verbs and speaks in only two-word sentences Both boys have smaller vocabularies and are

7、less inquisitive than Leona was Mr. Turner found site on Internet claiming that 2-year olds should speak in at least 3-word sentences,2.4,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,

8、Case Study #1 Questions:,What are some reasons for the individual differences between Leon and Lionel in terms of language acquisition? Looking at the higher-level language abilities of their sister Leona, do you think birth order or gender has an influence on language development?,2.5,Justice Commu

9、nication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Case Study #2: Reston,Third grader at public school in N. Virginia Has struggled with language development since he was a toddler Receives speech and l

10、anguage therapy and works with specialist for reading and writing Problems with recognizing how strings of letters relate to certain sounds Parents think he should not have to take the third grade state mandated achievement test,2.6,Justice Communication Sciences and Disorders: An Introduction,Copyr

11、ight 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Case Study #2 Questions,Should all students, including Reston, be required to take the state-mandated achievement tests? (“high-stakes testing”) Should students with disabilities receive special modificati

12、ons for these tests? Who receives them and who does not?,2.7,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Case Study #3: Sam Donalds,46-year old man in rural West Virginia coal miner

13、on disability and now wants to improve his own reading and tutor children Reads at a third grade level and has serious problems with phonological awareness Attends Adult Literacy Education class at local church Teacher does not think Sam can improve reading skills because of problems with phonologic

14、al awareness,2.8,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Case Study #3 Questions,Do you think that Sams teacher is correct that Sam will not be able to improve his reading skills

15、 to a large extent? What would you recommend if you were Sams teacher? Do you think a deficit in phonological awareness is causing Sams reading problems?,2.9,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 A

16、ll rights reserved.,I. What is Communicative Competence?,Definition: “the knowledge and implicit awareness that speakers of a language must possess and utilize in order to communicate effectively in their language” The speaker knows how, where, when, and with whom to speak,2.10,Justice Communication

17、 Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,What is Communicative Competence?,Remember from Chapter 1 the four processes involved with communication: Formulation Transmission Reception Comprehension Huma

18、ns are able to successfully perform these four processes if they possess two aspects of communicative competence: Linguistic Pragmatic,2.11,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved

19、.,Linguistic Aspects of Communicative Competence,Phonological Grammatical Lexical Discourse,2.12,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,1. Phonological Competence,Ability to rec

20、ognize and produce the distinctive meaningful sounds of a language (phonemes) Newborns can distinguish between the sounds of all the languages of the world, but this gradually diminishes Comprehension precedes production because production depends on development of articulators (vocal tract),2.13,Ju

21、stice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Phonological processes: the normal phonological deviations that young children make in their speech Should not be confused with an articulat

22、ion disorder (unable to produce sound in any context) or a phonological disorder (deviations do not stop occurring at appropriate age),2.14,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved

23、.,2. Grammatical Competence,Ability to recognize and produce the syntactic and morphological structures of a language effectively Syntax example: infants demonstrate understanding of word order by 16 months Morphology example: infants demonstrate understanding of morphemes separated from verb stems

24、by 18 months As always, comprehension precedes production,2.15,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,3. Lexical Competence,Ability to recognize and produce the conventional wor

25、ds used by speakers of a language 4.5 months understand own name 6 months understand names of salient figures (e.g., mommy) 12 months first true word,2.16,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All

26、rights reserved.,4. Discourse Competence,Ability to use fluency, coherence, and cohesion in relating information to others Unit of analysis: “speech event” Common example failure to take the receivers perspective and knowledge of situation into account,2.17,Justice Communication Sciences and Disorde

27、rs: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Pragmatic Aspects of Communicative Competence,Functional Sociolinguistic Interactional Cultural,2.18,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by

28、 Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,1. Functional Competence,Ability to achieve a variety of communication purposes in a language Remember from Chapter 1 people communicate for many reasons, the most basic being:-request-reject-comment,2.19,Justice Comm

29、unication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,2. Sociolinguistic Competence,Ability to: (a) interpret the social meaning conveyed by language and (b) to choose language that is appropriate for spe

30、cific social situations Speech register: the variety of speech appropriate to a particular speech situation-informal registers-formal registers,2.20,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights

31、 reserved.,3. Interactional Competence,Ability to understand and apply implicit rules for interaction in various communication situations, including:-starting and maintaining conversation-following standards for body language, eye contact, and physical proximity Acceptable standards vary both betwee

32、n and within cultures,2.21,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,4. Cultural Competence,Ability to function effectively in cultural contexts by interpreting behavior of others

33、and behaving in an acceptable way according to the cultureMust understand cultures attitudes, values, and beliefs,2.22,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,II. What is the Fou

34、ndation for Communicative Competence?,Infants are not born with communicative competence, but there are several early foundations that allow it to develop, including:-joint reference and attention-rituals of infancy-caregiver responsiveness-infant speech perception,2.23,Justice Communication Science

35、s and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,1. Joint Reference and Attention,Phase One: (0-6 months) develops ability to maintain attention for sustained periods of interpersonal interaction Phase Two: (6-12 mon

36、ths) develops joint attention: simultaneous engagement of two or more individuals in mental focus on same external object leads to intentional communication (deliberate attempts at communication with others) Phase Three: ability to use language within interpersonal interactions,2.24,Justice Communic

37、ation Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,2. Rituals of Infancy,Daily routines such as feeding, bathing, and dressing provide opportunities for learning language:-infants hear the same words and p

38、hrases over and over-many chances for joint attention,2.25,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,3. Caregiver Responsiveness,Attention and sensitivity to infants vocalizations

39、and communicative attempts Waiting and listening Following the childs lead Joining in and playing Being face to face Using a variety of questions and labels Encouraging turn taking Imitating Expanding and extending,2.26,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by

40、Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,4. Infant Speech Perception and Categorization,Perception and categorization of phonemes, rhythm, prosody, and lexical items innately given With this skill and increasing language experience, infants soon develop abili

41、ty to detect distributional regularities Eventually, infants are able to segment phrases and words from continuous speech,2.27,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,III. Commun

42、icative Milestones,Beginning at birth, children all over the world reach certain communication milestones at approximately the same age and in the same order Four main developmental periods:-infancy-toddlerhood-preschool-age-school-age,2.28,Justice Communication Sciences and Disorders: An Introducti

43、on,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Milestones in Infancy,Stages of Vocal Development:-Phonation (0-1 month)-Gooing and Cooing (2-3 months)-Expansion Stage (4-6 months)-Canonical Babbling (6-8 months)-Variegated Babbling (8+ months),

44、2.29,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Milestones in Infancy,Emergence of Intentionality:-Until roughly 7 months, infants are pre- intentional-Between 7 and 12 months, infa

45、nts have intentional communication, as evidenced by gestures, pointing, and eye contact,2.30,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Milestones in Infancy,Transition to Symbolic

46、Representation-words are arbitrary symbols that represent concepts in the world-infants develop “mental dictionaries” with lexical entries-at roughly 12 months, infants begin using symbols, including words and referential gestures (gesture carrying a fixed meaning),2.31,Justice Communication Science

47、s and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Milestones in Infancy,The First Word:-first “true” word occurs around 12 months, on average-what makes it a “true” word?-clear intention and purpose-recognizable pronu

48、nciation-consistent use and extends beyond original context,2.32,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Milestones in Toddlerhood,Achievements in Form:-grammatical morphemes-tra

49、nsition to multi-word utterances-distinct grammar that governs word order-Mean Length of Utterance (MLU)-basic mastery of three sentence forms:-yes/no questions-wh-questions-negatives,2.33,Justice Communication Sciences and Disorders: An Introduction,Copyright 2006 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.,Milestones in Toddlerhood,Achievements in Content:-vocabulary spurt (“naming explosion”)-receptive lexicon much greater than expressive lexicon-underextensions used-overextension used-categorical-analogical-relational,