Development of Language and Literacy: Typical Milestones and Childhood Language Disorders Krista Stangel Graduate Student Clinician - MS SLP Lucas Steuber MA Applied Linguistics Graduate Student Clinician - MS SLP What is Speech-Language Pathology? Responsible for “diagnosis, prognosis, prescription and remediation” for children and adults with difficulty speaking, listening, reading, writing, or swallowing. Speech, literacy, nonverbal communication, assistive/augmentative communication, craniofacial disorders (cleft palate), etc … Minimum of three years of graduate education (including clinical fellowship) The agenda for today Developmental Milestones in Normal Language Acquisition – Lucas Signs of Childhood Language Disorders & Strategies for Enhancing Language Q&A Development – Krista What is language? More than just speech More than just speech and writing Actually, more than just words Language is communication in all of its forms Language is how we interact with others and share our ideas What is language? Language learning and use is an interaction of biological, cognitive, psychological, social, and environmental factors Language must be seen in historical, cultural, and social context Effective use of language requires a lot more than just knowing the meaning of words Example of amelioration/pejorating Domains of Language Syntax Semantics Phonology Morphology Pragmatics Syntax “Grammar” The rules about how we combine words and phrases to create sentences Different across languages English syntax is Subject-Verb-Object “I told him” French syntax can be Subject-Object-Verb “Je lui ai dit” (“I him have told”) Semantics Generally: Meaning Specifically: Vocabulary Our mental dictionary that we use to interpret language and the world Contextual! “How many words do Eskimos have for snow?” OED has 171,476 English words in use; 47,156 obsolete words (some obsolete) George Washington Having thus imparted to you my sentiments as they have been awakened by the occasion which brings us together, I shall take my present leave; but not without resorting once more to the benign Parent of the Human Race in humble supplication that, since He has been pleased to favor the American people with opportunities for deliberating in perfect tranquility, and dispositions for deciding with unparalleled unanimity on a form of government for the security of their union and the advancement of their happiness, so His divine blessing may be equally conspicuous in the enlarged views, the temperate consultations, and the wise measures on which the success of this Government must depend. George Bush God bless you and God bless the United States of America. Phonology The sounds of language Also the rules that we use to determine what sounds can go together in each language Ghoti = FISH (enough, women, nation) Sometimes has very little connection to orthography – the way we spell in English Two main reasons for this: First, blame the French! (Norman invasion – 1066) Next, blame the “Great Vowel Shift” – 1350-1700 Morphology The system we use to change the form and meaning of words Think “conjugation” Watch (N/V), Watches (N/V), Watched (V) … Some languages are agglutinative; syntax is morphology Swahili: Nilimwambia “I told him” Ni – li – mwambi - a “I him tell (past tense)” Pragmatics Language in use Specifically, appropriate use We all suffer from lapses in pragmatics I’m too loud and I talk too fast Children often learn some elements of pragmatics before other parts of language Turn taking, reference (“deixis”), reciprocity of smiling Other Concerns Register: Talking to parent vs talking to friend Genre: Academic writing vs Facebook Dialect: Everyone has a dialect (and an accent) English as a Second Language DIFFERENCE VS. DISORDER Stages of Language Acquisition Many people think about language and literacy happening at school “Critical Period” In fact language learning starts much earlier and continues much later Let’s look at phases of normal development in all of the domains of language we just covered Birth to Eight Months Phonology 0-2mos: “Vegetative” noises 2-4mos: Laughing, cooing, pleasure and displeasure noises. May begin to cry differently for different needs 4-6mos: Some clear vowels; “vocal play” 6-8mos: Babbling short repeating groups like “mamamama bibibibi” Birth to Eight Months Everything else Not much to point to in terms of production with syntax, pragmatics, morphology, etc… Much “intentionality” on the part of young babies is actually really attributed by caregivers However, the foundation of structure and meaning is being laid Eight Months to a Year Pragmatics Okay, NOW they start to mean it Intent shown by gesturing, refusing, games like “peekaboo” understood Semantics Understanding of 3-50 words First words! Usually a name of a familiar person or object First words almost always have consonant-vowel shape Eight Months to a Year Phonology Start to see babble that’s not just duplicated Contains “intonation contours” like normal speech http://www.youtube.com/watch?v=_JmA2ClUvUY 12-18 Months Pragmatics Starts to use words to communicate things that before were maybe communicated via gesture On average, five communicative actions per minute during play Semantics Expressive vocabulary of 50-100 words Words communicate identity of people and objects, rejection (no!), possession (mine) 18 months to 2 years Pragmatics New communicative intents include requesting information (rather than just objects/activities) and answering questions On average, 7-8 communicative actions during free play Semantics Understanding of so-called “WH-” questions Who, what, where, when, how (but not yet why) 18 months to 2 years Syntax/Morphology “Brown’s Stage 1” Two-word utterances with consistent word order. Few grammatical markers (-s, -ed, etc) Phonology Speech is 50% intelligible to familiar listeners Two-syllable words emerge, along with CVC (consonant-vowel-consonant) words. “dog” Literacy Check In! Before two years… Phonological awareness “Meta-textual” skills like orientation and page turning Scribbling with crayons etc May pretend to read when others are reading Two to Two and a Half Years Pragmatics Children start to say “please” (depending on the parents!) Children start to LIE! Or, at least, to understand the concept of lying/teasing. Children gain object permanence in their language; will talk about things/people that aren’t present. “Symbolic play” – using one object to stand in for another (a block for a truck, etc) Two to Two and a Half Years Syntax/Morphology “Brown’s Stage 2” Use of –ing, in, on, plural –s Use of “no, not, can’t don’t” as negation of a verb Questions formed with rising intonation Verbs “gonna, wanna, gotta, hafta” appear Phonology Rhyming (highlight re: literacy) This is often the age when children with language disorders may be identified Two and a Half to Three Years Pragmatics Children will maintain a topic and ask for clarification if needed Narratives start to take the form of a sequence rather than a “heap” of disconnected events Semantics Understanding and use of “why” questions – sometimes too much! Use of spatial pronouns like in, on, out, under, etc Two and a Half to Three Years Syntax/Morphology “Brown’s Stage 3” So-called “helping” verbs like “can” and “will” are used with basic verbs like be/go Past-tense overgeneralized (“I ranned there”) Phonetics Speech is 75% intelligible to familiar listeners Three to Three and a Half Years Pragmatics Indirect requests (“can you...” “would you…”) Narratives start to take on thematic/temporal organization. “At school I … and then I …” Semantics Color words Use of words like “and,” “or,” “then,” and “because” to conjoin sentences Three to Three and a Half Years Syntax/Morphology “Brown’s Stage 4” First complex sentences (two sentences conjoined) Irregular past tenses (“I ran”) Use of articles (a, the) and possessive –s Phonology Some perceived articulation errors automatically resolve (final consonant deletion, etc) “I can do a hantan!” Three and a Half to Four Years Pragmatics New communication functions emerge, including: Reasoning, predicting, empathy, creating imaginary props during play Semantics: Full understanding of “when” and “how” Q’s Basic shape vocabulary (circle, square, triangle) Basic size vocabulary (big, small) Three and a Half to Four Years Syntax “Brown’s Stage IV” continued Prepositional clauses (“in the house”) Phonology Decreased use of cluster reduction (“playing” for “paying”) Overall articulation becoming much more clear Four to Five Years Pragmatics Use of hints; like “those cookies look good!” Narratives now have a plot, but often no climax or resolution Semantics Knowledge of letter names and their corresponding sounds Knowledge of numbers and counting Four to Five Years Syntax “Brown’s Stage 5” Regular past tense verbs and third person –s understood and used (“He walks, he walked”) Gerunds! (“Playing is fun”) Phonology Speech 100% intelligible to familiar listeners Understanding of syllables within words Mild errors with s, r, l, and th may persist past this point Literacy Check In! By age five… Learns order and format of print (left to right) Recognizes own name Recognizes some other familiar words May invent spelling Begins to write name 5-7 Years Pragmatics Narratives are true stories, with climax/resolution Semantics Average expressive vocabulary of 3-5,000 words So-called lexical “explosion” occurs Syntax Mastery of grammatical “exceptions” begins Phonology Last residual speech errors remediate spontaneously 7-9 Years Pragmatics Language used to establish/maintain social status Becomes more successful in persuasion Semantics Acquisition of “literate vocabulary” Can name synonyms in word definitions “Polysemy” understood; words with multiple meanings 7-9 Years Syntax Begins to acquire/understand more complex syntax required for academic interaction “in order to,” “if you,” “prior to …” Some errors in syntax still persist Phonology Articulation largely error-free Sound manipulation – “pig latin” Phonological knowledge used for spelling More Literacy! By age 9 … Reads for pleasure (fiction and nonfiction) May invent secret codes Can “sound out” words Some phonic patterns known (like silent e) Begins to learn punctuation rules Knows many conventional spellings Can make errors in spelling due to phonological correspondences 9-12 Years Pragmatics Use of jokes and riddles based on lexical ambiguity “what has four wheels and flies?” “where does Napoleon keep his armies?” Semantics Acquires and uses more abstract vocabulary from school texts Common idioms are understood (“piece of cake” “apple of my eye”) 9-12 Years Syntax Continues to acquire more complex syntax from textbooks Word order can be varied creatively. “I drew a bear for my art project” -> “For my art project, I drew a bear” Phonology “Metaphonological” skills Literacy Check! By age 12 … Reading is fluent Comprehension is now the focus Reads both for pleasure and to seek info Fewer spelling errors Begins to use persuasive and expository writing in school curriculum 12-14 Years Pragmatics More use and understanding of humor and riddles Developing peer norms in social language use Semantics Can offer abstract, dictionary definitions for words Syntax Begins to use (and not just comprehend) more complex syntax in writing Phonetics Proper rules of stress (“RECord, recORD”) 15-18 Years Pragmatics Ability to persuade and argue is near-adult Semantics Average expressive vocabulary of a high-school graduate: 10,000 words Syntax Perfect aspect (“I had just finished, when …”) Able to write for an academic audience Passive construction of sentence Phonology Knowledge is now at adult level 18-21 At this stage, phonology and pragmatics are often near the end of their development. However, semantics and syntax continue to develop if the individual continues to be engaged in an academic environment Literacy also develops as the student reads “beyond the high-school level” … and beyond! We never stop learning about language! Discipline-specific information; “jargon” Technological advances change language Abbreviations Communication and Language Disorders Let’s look at some common communication disorders Articulation http://www.youtube.com/watch?v=PYxM229pAzw Stuttering http://www.youtube.com/watch?v=y1kGNUk_Hp0 Both communication disorders but different from language disorders! What is a Language Disorder? Remember, there is a WIDE range of normal! Language Disorder Difficulty understanding and/or using language Difference ≠ Disorder May involve deficits in any language domain Impairment in one or more domains PHONOLOGY: how individual speech sounds can be sequenced SYNTAX: word order and relationships between words in sentences MORPHOLOGY: word structure and how the meaning of words can be changed (plurals, past tense) SEMANTICS: the meaning of words; vocabulary PRAGMATICS: how language is used socially Language Disorders No single cause Primary Language Disorder: No other conditions or disorders; no known cause Often called specific language impairment (SLI) Secondary Language Disorder: Language disorders often co-occur with developmental, genetic, or acquired disorders Specific Language Impairment Impairment specific to language No known cause May be slower starting to talk Varied language profile Specific Language Impairment Phonology: May have co-occurring speech sound disorders May have difficulties with phonological awareness Syntax & Morphology: Shorter length of utterance May omit grammatical elements and morphemes (past tense, plurals, etc.) Pronoun errors Difficulty with wh- questions Specific Language Impairment Semantics: Slower rate of vocabulary development May have smaller vocabularies May have difficulty with word retrieval Pragmatics: Pragmatic skills vary greatly May have difficulty with: Topic Initiation & Maintenance Repairing communication breakdowns Narrative skills Perspective taking Video http://www.youtube.com/watch?v=UmLu8rzbHhE Language & Literacy Strong connection between oral language abilities and literacy skills Children with oral language disorders are at risk for difficulties with reading and writing Impairments in any domain can impact reading and writing SLI & Dyslexia Dyslexia & SLI are distinct conditions but can cooccur Early signs of dyslexia and SLI may be similar in some young children Possible delays in speaking Articulation errors may be present Difficulty with rhyming and phonological/phonemic awareness Difficulty with word retrieval; imprecise language Language Disorders in Special Populations Language disorders commonly co-occur with many genetic and developmental disorders A diagnosis does not predict an individual’s language abilities Lots of variability Let’s explore some possible language characteristics in selected populations Intellectual Disabilities Autism Spectrum Disorders Traumatic Brain Injuries ADHD Complex Communication Needs Intellectual Disabilities Significant limitations in cognitive functioning (IQ score significantly below average) and adaptive skills IQ does not predict language skills Language development is delayed Different patterns of strengths/weaknesses Intellectual Disabilities Phonology: May have speech sound disorders Syntax/Morphology: Shorter and less complex sentences Often omit morphemes and function words Semantics: Slower vocabulary growth Concrete vocabulary is a strength, difficulties with abstract vocabulary Intellectual Disabilities Pragmatics: Down Syndrome: generally considered a strength Williams Syndrome: overfriendliness, difficulties providing appropriate/contingent responses Fragile X: Individuals who also have co-occurring ASD will demonstrate significant pragmatic deficits Literacy: Variable Improving oral language abilities can provide a foundation for literacy Autism Spectrum Disorders (ASD) Deficits in social communication and social interaction Often see early differences in social communicative behaviors Delayed speech and language is common Pragmatic differences are universal ASD Phonology Varies; may have very limited speech skills Syntax/Morphology Variable; can be completely intact May use short, simple sentences May use incorrect word order, omission of grammatical morphemes Semantics Wide variability More difficulty with abstract vocabulary, figurative language ASD Pragmatics May lack interest in communication Difficulty maintaining conversation Use of language in perseverative manner Difficulty with perspective taking Literacy Decoding may be a strength Comprehension may be more challenging Traumatic Brain Injury Age, location, and severity of brain injury is related to language and literacy outcomes Language impairments from minimal Deficits in attention and impact language & literacy range to severe memory ADHD Language can be typical Language & literacy challenges can include: Difficulties with complex grammar and vocabulary Pragmatic Difficulties Literacy outcomes may be influenced by processing speed, attention, comprehension monitoring Complex Communication Needs Some children may be unable to speak and use verbal language Alternative and Augmentative Communication (AAC) systems language can provide access to Plus Many More!! Many other conditions or disorders may have cooccurring language disorders No matter what, individualized assessment and intervention is key Supporting Language Development KEEP TALKING! I’m Listening! Supporting Language Development Model appropriate speech and language Respond to all attempts to communicate Offer choices Ask questions Read to your child to vocabulary increase Zone of Proximal Development Build upon a child’s current language skills Scaffolding Example: If a child is saying two-word sentences, we want to model three-word sentences (next developmental step) Supporting Language Development Birth to 2 years Use language to describe what you are doing Self Talk Parallel Talk Use gestures when communicating Imitate facial expressions and sounds Expand upon the child’s babbling/words Explore written materials like books Supporting Language Development 2 to 4 years Expand upon what the child says Expansion: Repeating what child says with adult-like grammar Child: “Car go” Adult: “Yes, the car is going” Extension: Add new information “The car is going fast” Supporting Language Development 2 to 4 years Label objects/items to introduce new words Specific vocabulary (categories) 20 introductions across different settings Supporting Language Development 4 to 6 years Think about scaffolding and the zone of proximal development Give two- or three-step directions First sharpen your pencil, then get your notebook Sharpen your pencil, get your notebook, and then sit down Supporting Language Development 4 to 6 years Introduce new words, explain what they mean, and use in multiple contexts Example: Combine and tractor Similarities and differences Functions Supporting Language Development 4 to 6 years Play games involving language I spy 20 questions Discuss opposites and attributes Size (big, small, heavy) Shape Color Supporting Language Development School-Age Ask open-ended questions Make connections between school, home, and other activities Follow the child’s lead in his/her interests and preferences Use interest areas for vocabulary growth THANK YOU!!! ANY QUESTIONS? References American Speech-Language Hearing Association. (2013). Activities to encourage speech and language development. Retrieved from: http://www.asha.org/public/speech/development/parent-stimactivities.htm. American Speech-Language Hearing Association. (2013). Suggestions for parents. Retrieved from: http://www.asha.org/public/speech/development/suggestions.htm. Catts, H. W., Adlof, S. M., Hogan, T. P., & Weismer, S. E. (2005). Are specific language impairment and dyslexia distinct disorders? Journal of Speech, Language, and Hearing Research, 48, 1378-1396. Owens, R. (2010). Language disorders: A functional approach to assessment and intervention (5th edition). Pearson Education, Inc. Owens, R. (2012). Language development: An introduction (8th edition). Upper Saddle River, NJ: Pearson Education, Inc. Paul, R. & Norbury, C. (2012). Language disorders from infancy through adolescence: Listening, speaking, reading, writing, and communicating (4th edition). St. Louis, Missouri: Elsevier Inc. Roseberry-McKibbin, C. & Hegde, M. N. (2011). An advanced review of speech language pathology (3rd edition). Austin, TX: Pro-Ed. Shaywitz, S. (2003). Overcoming dyslexia: A new and complete science-based program for reading problems at any level. New York: Vintage Books, Random House Inc.
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