LIng/Psyc 370B, Phonetic and Phonological Development Lecture #9 & #10
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Questions and Answers

Which of the following describes a phonotactic constraint?

  • The permissible arrangements of sounds in a language, such as the possible combinations of consonants and vowels. (correct)
  • The phenomenon where infants perceive continuous speech sounds as belonging to discrete categories.
  • The ability to distinguish between voiced and voiceless sounds like /z/ and /s/.
  • The mental templates that babies create for the sounds of their native language.
  • What does the research on categorical perception in infants, such as the Werker & Tees (1984) study, primarily demonstrate?

  • Infants' perception of phonetic contrasts is solely determined by their genetic predispositions.
  • Infants are born with the ability to distinguish all phonetic contrasts present in all languages and maintain this ability throughout their development.
  • Infants' ability to discriminate non-native phonetic contrasts declines with age due to specific language experience. (correct)
  • Infants require explicit instruction to learn the phonetic contrasts of their native language.
  • What is the general order of phonological development in infants?

  • Production of all sounds occurs rapidly, with comprehension developing slowly over time.
  • Comprehension/perception of sounds precedes production of sounds. (correct)
  • Production of complex words before comprehension of basic sounds.
  • Production and comprehension of sounds develop simultaneously.
  • How does the phonetic perception of bilingual infants typically differ from that of monolingual infants?

    <p>Bilingual infants maintain the ability to distinguish sounds from both languages they are exposed to. (B)</p> Signup and view all the answers

    In the context of phonetic development, what does the term 'narrowing' refer to?

    <p>The process by which infants become specialized in perceiving the sounds relevant to their native language(s). (A)</p> Signup and view all the answers

    According to the content, approximately what percentage of the time do babies hear single words in speech?

    <p>About 10% of the time. (C)</p> Signup and view all the answers

    At what age have infants been shown to recognize single words?

    <p>At around 6-months of age. (A)</p> Signup and view all the answers

    Which of the following is an example of infants recognizing contrasting sounds?

    <p>The ability to distinguish between voiced and voiceless sounds like /z/ vs. /s/. (D)</p> Signup and view all the answers

    Which of the following phonological processes involves the deletion of an unstressed syllable in a word?

    <p>Weak syllable deletion (C)</p> Signup and view all the answers

    A child says 'teep' for 'sheep'. Which phonological process is the child exhibiting?

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

    What articulatory feature distinguishes the dental /d̪/ from the retroflex /ɖ/ sound?

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

    According to the content provided, what is a key experiential factor that influences phoneme production advancement?

    <p>Adult speech input (A)</p> Signup and view all the answers

    Which of the following best describes how words are stored in the mental lexicon?

    <p>As entries with semantic, phonological, syntactic, and morphological properties (D)</p> Signup and view all the answers

    What is the 'Looking while listening paradigm' typically used to study?

    <p>Word recognition in young children (C)</p> Signup and view all the answers

    What aspect of phonetic inventory is most responsible for variability across the world's languages?

    <p>Some languages include clicks, implosives, and ejectives, which are rare or absent from others. (B)</p> Signup and view all the answers

    According to the information, what is the primary indicator that infants use phonotactic constraints to distinguish between familiar and unfamiliar sound sequences?

    <p>They listen longer to lists of words containing high-probability phonotactics. (A)</p> Signup and view all the answers

    In the context of statistical learning, which statement best describes how transitional probability aids infants in segmenting speech?

    <p>It enables infants to predict phoneme sequences, helping them differentiate words from non-words. (B)</p> Signup and view all the answers

    What best describes that relationship between phonological awareness and vocabulary size?

    <p>As the vocabulary size increases, the better the phonological awareness. (B)</p> Signup and view all the answers

    Which factor does the timeline of phoneme production depend on?

    <p>Cross-linguistic differences and individual differences. (C)</p> Signup and view all the answers

    Based on the scenarios presented, what is the likely outcome when an infant is exposed to a novel word embedded within a sentence containing familiar words?

    <p>The infant may segment the novel word from the sentence. (A)</p> Signup and view all the answers

    What can be the ultimate result of lexical development?

    <p>A refined phonological system. (B)</p> Signup and view all the answers

    According to the information, how do 8-month-old infants respond when tested on their ability to segment streams of speech from both their native language and novel languages?

    <p>They pay more attention to word sounds from the familiarization phase, from both languages. (A)</p> Signup and view all the answers

    What does the example of the nonsense word banriptangbowpkesternladlfoop illustrate in the context of phonological development?

    <p>It exemplifies a sequence that violates phonotactic constraints, potentially sounding unfamiliar to infants. (D)</p> Signup and view all the answers

    During the reflexive vocalization stage, what primarily characterizes an infant's sound production?

    <p>Sounds directly associated with biological functions. (A)</p> Signup and view all the answers

    Which of the following best describes the key feature of the 'cooing and laughter' stage of vocal development?

    <p>Production of sounds resembling long vowels and early cooing sounds. (C)</p> Signup and view all the answers

    What is a primary characteristic of the 'vocal play' stage in infant vocal development?

    <p>Experimenting with a range of vocal sounds, varying in pitch and volume. (A)</p> Signup and view all the answers

    What is the defining characteristic of 'canonical babbling'?

    <p>Production of repeated consonant-vowel sequences (reduplicated babbling) and varied sequences (variegated babbling). (D)</p> Signup and view all the answers

    In the 'jargon stage' of vocal development, what notable feature is present?

    <p>Long strings of syllables with stress and intonation patterns mimicking adult speech. (B)</p> Signup and view all the answers

    What is a key characteristic of infants' first words around the age of one year?

    <p>Simple syllable structures, often reduplicated. (B)</p> Signup and view all the answers

    What does 'babbling drift' refer to in the context of speech development?

    <p>The influence of the ambient language on the sounds produced during babbling. (A)</p> Signup and view all the answers

    What defines the 'transitional period' in early speech development?

    <p>Consistent usage of non-word sounds that are meaningful to the child. (D)</p> Signup and view all the answers

    Which of the following statements accurately describes the syllable structure of infants' first words?

    <p>Simple syllable structures; either single syllables or reduplicated syllables. (D)</p> Signup and view all the answers

    What does the term 'functional load' refer to in the context of phoneme production?

    <p>The importance of a phoneme in marking meaning contrasts in a language. (D)</p> Signup and view all the answers

    According to the cognitive load hypothesis, what is the predicted outcome when linking auditory labels to visual objects?

    <p>It is cognitively taxing, which can hamper the use of phonetic details. (D)</p> Signup and view all the answers

    In the context of phonological development, what distinguishes phonetic inventory from accuracy of pronunciation?

    <p>Phonetic inventory focuses on the list of speech sounds and word patterns, without emphasis on accuracy, while accuracy of pronunciation centers on the correctness of consonant production, often measured by Percentage of Consonants Correct (PCC). (C)</p> Signup and view all the answers

    What does the Percentage of Consonants Correct (PCC) primarily measure in the assessment of phonological development?

    <p>The overall accuracy of a child's consonant production relative to adult pronunciation. (D)</p> Signup and view all the answers

    A child pronounces 'cat' as 'tat'. Based on the provided information, what is the calculated Percentage of Consonants Correct (PCC)?

    <p>50% (A)</p> Signup and view all the answers

    How does experience influence the cognitive demands associated with word learning?

    <p>Prior word learning experience can decrease cognitive demands, making subsequent learning more efficient. (D)</p> Signup and view all the answers

    In an experiment examining the cognitive load hypothesis presented, what is being compared within the habituation and test phases?

    <p>The change in cognitive processing when presented with auditory stimuli that are either the same or phonetically switched. (A)</p> Signup and view all the answers

    What is a key limitation of phonetic inventory analysis in measuring phonological development?

    <p>It does not consider the accuracy with which sounds are produced. (A)</p> Signup and view all the answers

    Why might a researcher choose to use PCC over a phonetic inventory when studying phonological development?

    <p>PCC offers a quantitative measure of accuracy, which allows for statistical analysis of development over time. (D)</p> Signup and view all the answers

    In therapy, a child says 'top' instead of 'stop'. Using the adult pronunciation as the comparison, what sounds would be evaluated in calculating PCC?

    <p>The initial consonants /s/ and /t/, and the final consonant /p/. (B)</p> Signup and view all the answers

    How does the habituation-test paradigm contribute to understanding the cognitive load hypothesis in the context of phonological learning?

    <p>It enables researchers to measure the change in attention and cognitive processing when phonetic information is either consistent or inconsistent with prior exposure, indicating the cognitive resources required. (B)</p> Signup and view all the answers

    Which of the following is NOT a factor that influences the advancement of phoneme production in infants?

    <p>The complexity of mathematical equations and geometric concepts introduced (C)</p> Signup and view all the answers

    What does the 'looking while listening paradigm' reveal about word recognition in children?

    <p>It indicates that children around 18-23 months have the ability to visually fixate more on familiar words. (D)</p> Signup and view all the answers

    Which statement best describes how babies engage with articulatory systems?

    <p>Babies engage with the articulatory system while listening to speech sounds. (D)</p> Signup and view all the answers

    According to the content, what characterizes first words in a child's lexical development?

    <p>First words tend to be phonologically simple. (A)</p> Signup and view all the answers

    Which of the following statements accurately reflects the relationship between comprehension (perception) and production in early language development?

    <p>Comprehension (perception) precedes production. (C)</p> Signup and view all the answers

    What effect does specific language experience have on infants' speech perception as they age?

    <p>Infants narrow their focus to the phonemes relevant to their native language(s). (B)</p> Signup and view all the answers

    What was the main finding of the Werker & Tees (1984) study on categorical perception of non-native sounds?

    <p>Infants' ability to distinguish non-native phonetic contrasts declines with age due to language experience. (B)</p> Signup and view all the answers

    In the context of early word recognition, what does the statistic babies hear single words in speech approx. 10% of the time suggest?

    <p>Infants are adept at extracting words from continuous speech despite hearing single words relatively infrequently. (B)</p> Signup and view all the answers

    What does the example of Czech speakers utilizing sounds not used in the English Language illustrate about sound systems?

    <p>Each language uses phonotactic rules for sounds and sound combinations. (B)</p> Signup and view all the answers

    What is the key feature that distinguishes aspirated sounds from unaspirated sounds, as perceived by newborns?

    <p>The presence or absence of a puff of air following the consonant's release. (A)</p> Signup and view all the answers

    In the development of mental templates for sounds, what does the contrast between $/b/$ and $/p/$ illustrate?

    <p>Infants establish phonetic categories by differentiating between sounds that signal meaning differences in their language(s). (A)</p> Signup and view all the answers

    Which of the following sounds are generally easier for infants to produce early on?

    <p>[b], [d], [n], [m] (C)</p> Signup and view all the answers

    At which stage of vocalization do reduplicated babbling and variegated babbling occur?

    <p>Canonical Babbling (D)</p> Signup and view all the answers

    The observation that French speakers can distinguish between the babbling of French and Arabic babies supports the concept of:

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

    What is a key characteristic of the sounds produced during the reflexive vocalization stage?

    <p>Association with biological functions (C)</p> Signup and view all the answers

    What is a defining feature of the jargon stage in infant vocal development?

    <p>Use of strings of sounds and syllables with stress and intonation (C)</p> Signup and view all the answers

    Which of the following best describes the 'transitional period' in speech development?

    <p>The period where children create consistent, meaningful sounds that don't resemble words in their L1 (D)</p> Signup and view all the answers

    Infants' first words typically exhibit a simple syllable structure, often consisting of:

    <p>Single syllables or reduplicated syllables (A)</p> Signup and view all the answers

    What does 'functional load' refer to in the context of phoneme production?

    <p>How important a phoneme is in marking a contrast in meaning (C)</p> Signup and view all the answers

    During what stage of vocalization do infants start producing consonant and vowel-like sounds such as [k] and [g]?

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

    An infant producing strings of sounds and syllables with stress and intonation patterns, but without clear word formation, is most likely in which stage?

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

    Flashcards

    Phonetic development

    The process by which infants learn the sounds of their language.

    Phonological development

    The development of rules and patterns for sound use in a language.

    Speech perception

    The ability of infants to recognize and differentiate sounds.

    Voiced vs. voiceless sounds

    Sounds produced with or without vocal cord vibration (e.g., /z/ vs. /s/).

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    Aspirated vs. unaspirated

    Sounds like /p/ (unaspirated) and /ph/ (aspirated), distinguished by breath.

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    Categorical perception

    The ability to perceive sounds as distinct categories rather than continuous.

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    Single words in speech

    Babies hear single words approximately 10% of the time in their environment.

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    Language experience effect

    The reduction in the ability to distinguish sounds not used in the baby's language.

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    Reflexive vocalizations

    Sounds produced by infants at birth, like crying, serving biological functions.

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    Cooing

    Vocal sounds made by infants aged 2–4 months, including coos and laughter.

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    Vocal play

    Experimentation with sounds by infants aged 4–6 months, including loud, soft, and varying pitches.

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    Canonical babbling

    Production of repetitive consonant-vowel combinations (e.g., 'bababa') by infants aged 6+ months.

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    Jargon stage

    Vocalization stage (10+ months) where infants produce strings of sounds with stress and intonation.

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    First words

    Initial meaningful words produced by infants around 1 year, often with simple syllable structures.

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    Babbling drift

    The phenomenon where infants' babbling is influenced by the language they hear.

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    Functional load

    The importance of a phoneme in distinguishing meaning in a language.

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    Transitional period

    Phase when infants create sounds that carry meaning but are not yet recognizable words.

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    Phoneme production

    Patterns in which infants produce certain sounds more easily than others during early vocal development.

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    Word Segmentation

    Infants identify words in sentences by recognizing familiar words.

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    Cognitive load hypothesis

    The theory that excessive mental effort can hinder learning by reducing processing efficiency.

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    Phonotactic Constraints

    Rules governing sound combinations in a language that aid infants in learning.

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    Auditory labels and visual objects

    Linking sounds (labels) to images can be taxing on cognitive resources.

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    Cognitive overload

    A state where cognitive demands exceed an individual's processing capacity.

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    Statistical Learning

    Infants detect patterns in speech by analyzing the frequency of sounds and sequences.

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    Word learning experience

    The process of acquiring vocabulary with minimal cognitive demands leads to better outcomes.

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    Transitional Probability

    The likelihood that one sound follows another in a sequence during speech.

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    Phonetic inventory

    A list of speech sounds and patterns produced by a child without requiring accuracy.

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    High-Probability Phonotactics

    Sound combinations that occur frequently and capture infants' attention more.

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    Pronunciation accuracy

    The correctness of speech sound production, measured by the percentage of consonants correct.

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    Percentage of consonants correct (PCC)

    A measure of phonological development, indicating the accuracy of consonant sound production.

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    Child speech patterns

    The specific ways children use sounds and words as they learn to communicate.

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    No focus on specific sounds

    In assessing phonetic development, the attention is on overall patterns rather than individual sound accuracy.

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    Berko Gleason & Bernstein Ratner

    Authors known for their work on phonological development and language acquisition studies.

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    Weak syllable deletion

    A phonological pattern where weak syllables are omitted in speech (e.g., 'nana' for 'banana').

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    Final consonant deletion

    A phonological pattern where the final consonant of a word is omitted (e.g., 'da' for 'dad').

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    Velar fronting

    A phonological substitution where back sounds are fronted (e.g., 'tea' for 'key').

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    Stopping

    A phonological substitution where fricatives are replaced by stops (e.g., 'teep' for 'sheep').

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    Reduplication

    A phonological pattern where a syllable or part of a syllable is repeated (e.g., 'wawa' for 'water').

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    Gliding

    A phonological change where /r/ and /l/ sounds are replaced by /w/ or /j/ (e.g., 'wabbit' for 'rabbit').

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    Phonological awareness

    The recognition of sounds and sound patterns in language, linked to vocabulary size.

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    Lexical development

    The process of building a mental dictionary, linking sounds to meanings and relationships.

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    Articulatory system

    The part of the brain and body that controls sound production through movement of the tongue and mouth.

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    Looking while listening paradigm

    An experimental approach where infants look at objects as they hear words, assessing word recognition.

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    Mental templates in L1 acquisition

    Infants create mental models for their language's sounds.

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    Newborn sound recognition

    Newborns can differentiate between voiced and voiceless sounds.

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    Narrowing of sound perception

    Infants focus on sounds relevant to their L1 as they age.

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    Single word frequency in infant speech

    Infants hear single words about 10% of the time around them.

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    Bilingual infants' sound retention

    Bilingual babies maintain sounds from both languages learned.

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    Categorical perception in infants

    Infants hear sounds as distinct categories based on their experiences.

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    Stages of vocalization

    The developmental phases of sound production in infants, including reflexive, cooing, and babbling stages.

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    Study Notes

    Phonetic & Phonological Development

    • The presentation covered LING/PSYC 370B on February 3rd and 6th, taught by Gabrielle Manning.
    • Assignment 1 is due on Thursday.
    • A roadmap was outlined, encompassing phonetic development, production development, and phonological development.
    • Sound systems in language are intricate and patterned. Each language has a set of sounds and constraints (e.g., computer, utprceom, gauč, dog). These show the differences in phonotactic constraints across languages.
    • Babies learning their first language (L1) create mental templates for the sounds of that language. Comprehension/perception happens before production.
    • Newborns recognize contrasting sounds (voiced/voiceless, aspirated/unaspirated). As infants grow, they focus on sounds important for their L1.
    • For example, Mandarin does not distinguish between voiced and voiceless sounds.
    • Bilingual infants keep sounds from both languages.
    • Infants' perception of contrasts (like Hindi [t] vs. [d], Salish [k] vs. [q]) decreases owing to specific language experience (e.g., 6-8 months, 8-10 months, 10-12 months). Research supports this through experiments with English-speaking infants and contrasts from Hindi and Salish languages.

    Stages of Vocalization

    • Babies go through stages of vocalization:
      • Reflexive vocalizations (birth-2 months): associated with biological functions (e.g., crying).
      • Cooing and laughter (2-4 months): coos, sounds like long vowels, change over time.
      • Vocal play (4-6 months): loud/soft, high/low sounds, consonant and vowel-like sounds (e.g., [k], [g]).
      • Canonical babbling (6+ months): reduplicated babbling (e.g., bababa), variegated/non-reduplicated babbling (e.g., bagidabu).
      • Jargon stage (10+ months): strings of sounds and syllables with stress and intonation patterns.
      • First words (around 1 year): initial words.

    Speech Development

    • Babbling drift happens when speech sounds are influenced by the language(s) an infant hears (e.g., French speaker hearing differences in babbling between French and Arabic).
    • Transitional period: children create consistent, meaningful sounds that do not resemble words in their L1.
    • First words have simpler syllable structures (e.g., baba, dada), often single syllables or reduplicated.
    • First word sounds signify the end of the babbling phase.

    Some Production Observations

    • Infants tend to produce certain sounds (e.g., [b], [d], [n], [m]) before others (e.g., [f]).
    • Functional load measures a phoneme's importance in distinguishing contrasts (e.g., sheep vs. fish).
    • Some sounds are easier to produce in specific contexts.
    • Observations of whole-word phenomena include weak syllable deletion (e.g., nana for banana), final consonant deletion (e.g., da for dad), and reduplication (e.g., wawa for water). Studies show that infants can do this at 6 months of age.

    Cross-linguistic & Individual Differences

    • The timeline of phoneme production varies cross-linguistically.
    • Examples include English and Swedish/Bulgarian/Estonian timelines differing (e.g., [v] appearing mid-late in English and early in other languages).
    • Individual variations include differences in babbling, adult-like sounds, intonation vs word sounds, and phonological patterns, which is influenced by functional load. This highlights the differing rates of development across languages and individuals.

    Production Advancement

    • Biological aspects (e.g., psychical growth, vocal tract muscles, neuronal development) contribute to greater production capacity.
    • Experience also plays an important role in vocal play, adult speech input, social feedback, and language-specific influences.

    Articulation & Phonetic Representation

    • Babies interact with articulatory systems while simultaneously listening to speech sounds.
    • Groups 2 and 3 demonstrate distinctions in sound production based on tongue placement and movement. Research has shown how babies engage with articulation and distinguish sounds.

    Phonology and the Lexicon

    • Words and morphemes are treated mentally as dictionary entries (lexicon).
    • These entries have properties such as semantic, phonological, syntactic, morphological, spelling, and pronunciation.
    • First words tend towards phonological simplicity.
    • Phonological awareness and vocabulary size are related; lexical development supports refined phonological systems.

    Word Recognition

    • Language acquisition involves a paradigm of "looking while listening" where 18-23-month-olds are tested.
    • The goal is to identify the recognition of words during speech.

    Word Recognition & Accented Speech

    • Phonological constancy describes infants' ability to disregard phonetic variation that does not significantly alter word meaning (e.g., differing accents). Research has addressed this aspect of speech perception.

    Word Learning

    • Research investigates whether children can learn new words solely based on subtle phonetic differences.
    • Experiments using 14 and 18-month-olds show word learning based on phonetic details.

    Cognitive Load Hypothesis

    • Linking auditory and visual information is demanding.
    • Word learning experience reduces cognitive demands for recognizing words. The cognitive load hypothesis highlights the cognitive demands of learning words.

    Measures of Phonological Development

    • Phonetic inventory involves listing speech sounds and word patterns as indicators of phonological abilities in a child.
    • Accuracy of pronunciation involves assessing the accuracy of consonants productions (e.g., PCC). Data is provided to show the measurement of this.

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    Description

    This quiz explores key concepts in the phonological development of infants, including phonotactic constraints, categorical perception, and recognition of sounds. It also covers studies and terminology related to infant speech perception, such as the effects of bilingualism and various phonological processes.

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