Infant Anatomy and Perceptual Development
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Questions and Answers

Which of the following is NOT a typical feature of babbling?

  • Systematic and repetitive
  • Includes complex syllable structures like VCV (correct)
  • Related to later language development
  • Limited to small segments
  • In what age range does a child typically begin to understand words?

  • 3-5 months
  • 18-24 months
  • 7-9 months (correct)
  • 10-12 months
  • What is the primary biological function of the vocal tract in infancy?

  • Speech production
  • Crying and vocalization
  • Breathing and eating (correct)
  • Social interaction
  • Which of the following is NOT a characteristic of a true word?

    <p>Always includes a consonant sound (C)</p> Signup and view all the answers

    What does the term 'canonical babbling' refer to?

    <p>Babbling with repetitive sequences of syllables (B)</p> Signup and view all the answers

    Which of the following is a red flag for prolonged phonological delay, according to Williams?

    <p>Limited use of vowel sounds (C)</p> Signup and view all the answers

    What is 'backing' in the context of phonological development?

    <p>Replacing an alveolar sound with a velar sound (B)</p> Signup and view all the answers

    What is a 'proto-word'?

    <p>An invented word used consistently and conveys meaning (C)</p> Signup and view all the answers

    How does early perceptual ability relate to later language development?

    <p>Speech perception at 6 months is predictive of language outcomes at 2 years (C)</p> Signup and view all the answers

    Which of the following is NOT a typical characteristic of a child's first words?

    <p>Frequent use of consonant clusters (A)</p> Signup and view all the answers

    Which of the following features is NOT a major class feature according to the text?

    <p>Strident (A)</p> Signup and view all the answers

    What is the primary difference between distinctive features theory and generative phonology?

    <p>Distinctive features theory describes individual sounds, while generative phonology explains how sounds change in different contexts. (C)</p> Signup and view all the answers

    Which of the following is considered an example of a marked sound?

    <p>The consonant /f/ (A)</p> Signup and view all the answers

    Which of the following is NOT a phonological process as described in the text?

    <p>Assimilation of place of articulation (D)</p> Signup and view all the answers

    What is the purpose of the Dialect Density Measure (DDM) as explained in the text?

    <p>To quantify the frequency of AAE features in a speaker's speech (C)</p> Signup and view all the answers

    What is the primary reason why it can be challenging to identify phonological forms of a dialect in children under the age of 4?

    <p>Children under 4 exhibit a wide range of speech errors due to immature oral motor skills. (D)</p> Signup and view all the answers

    Which of the following is a contrastive feature between African American English (AAE) and Standard American English (SAE)?

    <p>Use of the third person singular '-s' morpheme (B)</p> Signup and view all the answers

    Which of the following is a non-contrastive feature between AAE and SAE, as described in the text?

    <p>Use of demonstrative pronouns, like 'this' and 'that' (B)</p> Signup and view all the answers

    Based on the text, how can the principles of generative phonology be applied clinically?

    <p>Using phonological rules to understand and predict the patterns of speech errors in a child. (D)</p> Signup and view all the answers

    What is the primary assumption of natural phonology?

    <p>All languages have a universal set of phonological processes that are innate. (B)</p> Signup and view all the answers

    Which of the following is NOT a characteristic of the first 50-word period in language development?

    <p>Word-initial inventories contain more consonants than word-final inventories. (C)</p> Signup and view all the answers

    Which of the following is the primary purpose of phonetic transcription in speech-language pathology?

    <p>To analyze and document real-time speech events. (B)</p> Signup and view all the answers

    What type of phonological process involves changing a sound to sound more like a neighboring sound?

    <p>Assimilation processes (A)</p> Signup and view all the answers

    A child who frequently uses the phonological process of "fronting" is likely to produce which of the following substitutions?

    <p>Replacing /k/ with /t/ (A)</p> Signup and view all the answers

    Which of the following sounds typically develops later than other sounds, often appearing between 5-7 years of age?

    <p>/ɹ/ (C)</p> Signup and view all the answers

    A child who consistently produces "wed" instead of "red" is demonstrating which phonological process?

    <p>Gliding (C)</p> Signup and view all the answers

    Which of the following is NOT a component of phonological awareness?

    <p>Syntax awareness (C)</p> Signup and view all the answers

    Which of the following is a characteristic of phonemic awareness, as opposed to phonological awareness?

    <p>Identifying the initial sound of a word (A)</p> Signup and view all the answers

    Which of the following statements accurately describes the developmental progression of phonological awareness skills?

    <p>Children typically develop syllable awareness before phonemic awareness. (B)</p> Signup and view all the answers

    What is the term for a speech sound disorder that affects the sound structure of words, often leading to difficulties with phonological awareness?

    <p>Phonological disorder (A)</p> Signup and view all the answers

    Which of the following best describes the concept of "coarticulation"?

    <p>The influence of one sound on the articulation of a neighboring sound. (A)</p> Signup and view all the answers

    According to the information provided, which of the following consonant sounds is classified as an early developing fricative?

    <p>/h/ (A)</p> Signup and view all the answers

    Which of the following describes a primary benefit of using theories in clinical practice?

    <p>They provide a framework for understanding a client's speech-language difficulties. (B)</p> Signup and view all the answers

    Which of the following vowels is NOT typically acquired early in language development?

    <p>/ɛ/ (B)</p> Signup and view all the answers

    What is the main purpose of using diacritics in phonetic transcription?

    <p>To provide detailed information about the phonetic nuances of a sound. (C)</p> Signup and view all the answers

    Which of the following is a key difference between phonemic and non-phonemic diphthongs?

    <p>Phonemic diphthongs can be replaced with monophthongs without changing word meaning, while non-phonemic diphthongs cannot. (C)</p> Signup and view all the answers

    Which of the following best describes the correlation between phonological awareness skills and later reading ability?

    <p>Strong phonological awareness skills are a strong predictor of later reading success. (D)</p> Signup and view all the answers

    Flashcards

    Subglottal Pressure

    The pressure below the vocal cords that allows for intense crying in infants.

    Laryngeal Development

    The larynx in infants is shorter and positioned higher for feeding.

    Categorical Perception

    Ability to recognize speech sounds based on language phonetic categories.

    Babbling Stages

    Prelinguistic stages of vocalization leading up to first words, includes cooing and canonical babbling.

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    Prosodic Features

    Vocal characteristics such as stress, intonation, and pausing emerging around 6 months.

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    True Words

    First recognizable words that convey meaning and relate to adult models.

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    Proto-Words

    Invented words by the child that convey meaning but don’t resemble adult words.

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    Phonological Development Milestones

    Progression in a child's speech sound development typically completing by age 5.

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    Red Flags in Phonological Delay

    Signs indicating prolonged speech delays, like limited syllable shapes or constant errors.

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    Vowel Development

    Typically, children master most vowels by age 3, with more complex vowels later.

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    Distinctive Features Theory

    Theory that describes sound components distinguishing phonemes.

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    Binary System of Distinctive Features

    A system classifying features as either present (+) or absent (-).

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    Phonemes Differentiation

    Two phonemes differ if at least one distinctive feature is different.

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    Major Class Features

    Three categories of sounds: sonorants, vocalic, and consonantal.

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    Generative Phonology

    Explains phonological rules generated to describe language sounds.

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    Naturalness vs Markedness

    Naturalness refers to simpler sounds; markedness involves complex, rare sounds.

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    Natural Phonology

    Theory explaining children's phonological development through innate processes.

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    Phonological Processes

    Innate patterns guiding children's speech development.

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    Dialect Density Measure (DDM)

    Calculation of AAE dialect use comparing AAE tokens to total words.

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    Contrastive vs Non-Contrastive Features

    Contrastive forms actively change meaning; non-contrastive forms don't.

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    Phoneme Order of Appearance

    The sequence in which phonemes are typically acquired in early speech development.

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    Syllable Structure

    The typical syllable shapes used in the first 50 words of a child's vocabulary.

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    Phonological Awareness

    The ability to recognize and manipulate the sound structure of spoken words.

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    Phonemic Awareness

    The specific awareness of individual phonemes in words.

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    Final Consonant Deletion

    A phonological process where the final consonant of a word is omitted.

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    Gliding

    A substitution process where liquids are replaced by glide sounds.

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    Coarticulation

    The influence of one sound on another during speech production.

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    Assimilation

    A sound change where one sound becomes similar to a neighboring sound.

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    Diphthongs

    Vowels that change quality during their pronunciation.

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    Diacritics

    Marks added to phonetic symbols to indicate specific pronunciation features.

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    Transcription

    The process of representing speech sounds with symbols.

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    Emergent Literacy

    The early stages of reading and writing development.

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    Sound-Letter Correspondence

    The relationship between sounds and their corresponding written letters.

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    Study Notes

    Infant Anatomy and Physiology

    • Infant lungs are larger relative to their size than adult lungs
    • Increased subglottal pressure allows infants to cry more forcefully
    • Infant larynx is tucked under the chin, squashed, fatter, and thicker than an adult's
    • Infant pharyngeal cavity elongates in the first year
    • Infant oral cavity is filled by the tongue, acting as a sucking pad

    Perceptual Development

    • Categorical perception: Listeners perceive speech sounds according to the phonetic categories of their native language.
    • Perceptual constancy: Identify a sound as the same across different speakers, pitches, and environmental conditions.
    • Infants can discriminate all sounds of all languages up to 6-8 months.
    • Discrimination ability of non-native sounds decreases, but the ability to distinguish native sounds increases.
    • Early perceptual abilities are linked to later language development.
    • Speech perception at 6 months predicts outcomes at 2 years.

    Vocal Development Sequence

    • Prelinguistic Stage (Birth–12 Months): Occurs before the first word, incorporating gestures. Word comprehension is evident around 7-9 months. Babbling is systematic and limited to small segments, and is related to later language development.
      • Canonical babbling should be evident by 10 months.
    • Reflexive/Vegetative: Basic sounds.
    • Cooing/Laughter: More complex sounds.
    • Vocal Play: Experimentation with sounds.
    • Canonical Babbling:
      • Reduplicated (e.g., "baba").
      • Variegated (e.g., "dadada").
    • Jargon: Babbling with intonation patterns resembling adult speech.

    Vocoids and Contoids

    • Vocoids: Vowel-like sounds in babbling.
    • Contoids: Consonant-like sounds in babbling.
    • Syllable shapes: Refers to the structures of syllables (e.g., CV, VC, CVC). Most common in later babbling periods.

    Prosodic Features

    • Prosodic features (stress, intonation, pausing, duration) emerge around 6 months.
    • Falling pitch is the most frequent pattern in the first year.
    • These features are observed in expressive jargon.
    • Transition to first words demonstrates similarities to babbling.
    • Monosyllabic words predominantly.
    • High percentage of stops, then nasals, and fricatives.
    • Predominance of bilabial and apical productions.
    • Rare use of clusters.
    • Central, mid-front, and low-front vowels are common.

    First Words & Proto-Words

    • True words: Convey consistent meaning, are recognizably similar to adult-word forms.
    • Proto-words (invented words): Convey consistent meaning, but are phonetically consistent forms without similarity to an adult model.

    Babbling Characteristics and Relation to First Words

    • Longitudinal studies show that greater babbling complexity, contoid diversity, and more contoid babble correlate with greater language growth.

    Typical vs. Delayed Phonological Development

    • 10-month marker: Vowel errors and limited phonetic inventories.

    • Atypical phonological processes:

      • Backing
      • Initial consonant deletion
      • Glottal replacement
    • Red flags for prolonged delay: Limited syllable shapes, inconsistent errors, vowel errors, persistent initial/final consonant deletion, and frequent glottal sounds.

    Preschool Phonological Development

    • Significant phonological growth between 18-5 years.
    • Large growth in expressive lexicon
    • Emergent syntax.
    • By 5, children have a mostly complete phonological system.

    Preschool Vowel Development

    • Most vowels are typically mastered by age 3.
    • Non-rhotic vowels mastered by 36 months, rhotic vowels around 48-53 months.

    Preschool Consonant Development

    • Early consonants are reliably learned (p, b, m, d, n, h, etc).

    First 50 Words

    • Phonetic variability: unstable pronunciations.
    • Syllable structures: CV, VC, and CVC syllables predominate in the first 50 words.
    • Frequent consonant sounds: Labials, stops, fricatives (especially /h/).
    • Frequent vowel sounds: /a, u, i/
    • Larger word-initial inventories with more consonants for older children.
    • Younger children tend to have fewer sounds at the ends of words.
    • High use of correct consonants with a consistent ordering of initial and final-position sounds.

    Prosodic Features in the First 50 Words

    • Prosodic variation. Pitch variations signal differences in meaning with falling/rising pitch used for requesting, calling, demanding.

    School-Age Development

    • Mastery of majority of sounds by age 5.
    • Fine-tuning of sound production.
    • Further development of sounds (ɹ, ʒ, θ, ð) between 5–7 years.
    • Consonant and three-element clusters (skw, spr) may still be problematic until around 9 years.

    Phonological Awareness

    • Correlation between strong phonological awareness skills and later reading ability.

    Speech Sound Disorders- Prevalence, Types, & Risks

    • 4-6% of school-age children have a speech sound disorder.
    • Articulation disorders do not increase risk of other language/reading difficulties.
    • Phonological disorders do increase the risk.

    Phonological Processes

    • Syllable structure processes: affect syllable structure (e.g., final consonant deletion, reduplication).
    • Substitution processes affect production features: (e.g., gliding, fronting, stopping, backing)
    • Assimilation processes: one sound adapts to properties of other sounds.

    Phonetics: Basic Concepts

    • Transcription: documenting real speech events (descriptive, not prescriptive).
    • Parameters of consonants/vowels (place, manner, voice), (portion/position of tongue, lip rounding)
    • Vowel quadrants: illustrate tongue position.
    • Diphthongs (changes in sound quality) / phonemic vs. nonphonemic. (Change meaning in word/does not change meaning)
    • Diacritics (additional transcription marks)

    Coarticulation and Assimilation

    • Coarticulation: consonant positioning of the articulators.
    • Assimilation: adaptive vocabulary changes in which one sound becomes similar to a neighboring sound.

    Major Speech Sound Theories

    • Distinctive features theory: sounds are distinguished by features.
    • Generative theory: phonological rules account for sound sequences.
    • Natural phonology: innate, universal phonological processes drive development.

    Cultural Linguistic Diversity

    • Identifying phonological forms of dialects is challenging under age 4 (due to immature motor systems).
    • AAE phonology may overlap with or be confused by phonological processes in general.
    • Impact on phonological awareness and phoneme-grapheme link.
    • Lower reading ability in AAE-speaking children.

    Contrast of Disorder vs. Difference

    • Contrastive forms: create different meanings (e.g., 3rd person singular, past tense).
    • Non-contrastive forms: may be dialect variations/unrelated to language disorders (e.g., articles, demonstratives).

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    Description

    Explore the fascinating aspects of infant anatomy and physiology, focusing on the unique characteristics of infant lungs, larynx, and oral cavity. Dive into the perceptual development of infants, including their ability to categorize and discriminate sounds from various languages. This quiz covers essential concepts related to early auditory skills and their implications for language acquisition.

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