Unit 4 - Perception, Concept, and Language Development
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Questions and Answers

What is the primary focus of attention in infants around 4 months old?

  • Foreheads
  • Eyes (correct)
  • Noses
  • Mouths
  • Which of these is NOT a characteristic of perceptual narrowing in infants?

  • Enhanced sensitivity to all types of faces (correct)
  • Improved ability to recognize familiar faces
  • Decreased ability to distinguish faces outside of familiar categories
  • Increased difficulty recognizing non-human faces
  • At what age do infants typically demonstrate the ability to discriminate between human and monkey faces?

  • 12 months
  • Newborn
  • 9 months
  • 6 months (correct)
  • Which of the following is a key aspect of object perception?

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

    What is the role of experience in object segregation?

    <p>Experience with specific objects helps infants understand their physical properties (B)</p> Signup and view all the answers

    How does culture influence scene perception in infants?

    <p>Culture impacts infants' attentional focus within a visual scene (A)</p> Signup and view all the answers

    At what age do infants typically begin to track the gaze of others?

    <p>2 years (A)</p> Signup and view all the answers

    Which of the following statements accurately describes the development of face perception in infants?

    <p>Infants initially prefer face-like shapes but become more selective over time. (A)</p> Signup and view all the answers

    What is a key takeaway from the case study of Genie, a 13-year-old girl with limited language exposure?

    <p>Early language exposure is crucial for developing functional language abilities. (B)</p> Signup and view all the answers

    What is a distinguishing characteristic of infant-directed speech (IDS)?

    <p>It is characterized by a slower pace, higher pitch variability, and more word repetition. (A)</p> Signup and view all the answers

    How do bilingual infants demonstrate their ability to differentiate between two languages?

    <p>They develop two separate linguistic systems, allowing them to switch between languages. (B)</p> Signup and view all the answers

    What is 'categorical perception' in the context of speech perception?

    <p>The tendency to perceive speech sounds as belonging to distinct categories. (D)</p> Signup and view all the answers

    What is the significance of the 'deaf community learners' section in the provided text?

    <p>It highlights the unique challenges faced by deaf individuals in acquiring language. (A)</p> Signup and view all the answers

    What is a major advantage of bilingualism in infants?

    <p>It enhances cognitive control and improves performance on cognitive tasks. (B)</p> Signup and view all the answers

    What does the text suggest about the importance of a human environment for language acquisition?

    <p>Human interaction is essential for providing the necessary auditory stimuli for language development. (C)</p> Signup and view all the answers

    What is 'prosody' in the context of language acquisition?

    <p>The unique rhythm and melody with which a language is spoken. (A)</p> Signup and view all the answers

    What is the difference between a conditioned stimulus (CS) and an unconditioned stimulus (UCS) in classical conditioning?

    <p>A CS is a stimulus that is learned to elicit a specific response, whereas a UCS is not. (D)</p> Signup and view all the answers

    In operant conditioning, what is the result of positive reinforcement?

    <p>Increased likelihood of the behavior being repeated. (A)</p> Signup and view all the answers

    What is the primary difference between observational learning and imitation?

    <p>Imitation is a form of observational learning, but observational learning is not necessarily a form of imitation. (A)</p> Signup and view all the answers

    What is a morpheme in language?

    <p>The smallest unit of meaning in a language. (B)</p> Signup and view all the answers

    What is the role of syntax in language?

    <p>Syntax governs the rules for combining words into sentences. (A)</p> Signup and view all the answers

    What is the significance of the statement "It's not you, it's me" in the context of pragmatics?

    <p>This statement highlights how language can be used to convey meaning beyond literal interpretation. (C)</p> Signup and view all the answers

    Which of the following is NOT a component of language?

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

    Why is language considered species-specific and species-universal?

    <p>Only humans have the capacity for language, and all humans share this ability. (C)</p> Signup and view all the answers

    Which of the following is a characteristic of telegraphic speech?

    <p>Short utterances with essential words omitted (B)</p> Signup and view all the answers

    What term describes the speech error where children apply regular grammatical rules to irregular words?

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

    Which of the following is NOT a characteristic of language development beyond age 5 or 6?

    <p>Limited vocabulary acquisition (D)</p> Signup and view all the answers

    What is the primary function of concepts in cognitive development?

    <p>To organize information based on similarities and differences (C)</p> Signup and view all the answers

    How do children initially categorize objects?

    <p>According to their perceived size and shape (B)</p> Signup and view all the answers

    What is the basis for object categorization in infants during the second year of life?

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

    At what age do infants begin to display an understanding of causality?

    <p>3 months (B)</p> Signup and view all the answers

    Which of these types of objects do infants tend to look at the most, according to eye-tracking studies?

    <p>Other people (D)</p> Signup and view all the answers

    What is the term for the phenomenon where certain sounds are more likely to appear together than others in a language?

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

    Which of the following is NOT a component of successful communication according to the content?

    <p>Voice Onset Time (D)</p> Signup and view all the answers

    What is the term used to describe an overly narrow interpretation of a word's meaning, such as referring to only one's own dog as 'dog' and calling all other dogs 'animals'?

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

    Which age group does the content mention as typically producing their first words?

    <p>Between 10 and 15 months (B)</p> Signup and view all the answers

    What is the process of discovering where words begin and end in fluent speech called?

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

    According to the content, what is an example of "overextension" in early word production?

    <p>Using the word &quot;ball&quot; for any round object (A)</p> Signup and view all the answers

    What is the role of "babbling" in early language development?

    <p>It is a crucial step in learning to vocalize and experiment with sounds. (C)</p> Signup and view all the answers

    What does the content suggest is the impact of early linguistic experience on word comprehension?

    <p>It helps infants develop a strong foundation for rapid word learning. (A)</p> Signup and view all the answers

    What is the main idea of this content?

    <p>The development of motor skills in infants. (C)</p> Signup and view all the answers

    Which of the following is NOT a motor milestone mentioned in the content?

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

    What does the term "WEIRD" refer to in the context of this content?

    <p>Western, Educated, Industrialized, Rich, Democratic (D)</p> Signup and view all the answers

    What is the significance of the visual cliff experiment?

    <p>It reveals how infants develop depth perception through integrating visual cues. (C)</p> Signup and view all the answers

    What does habituation refer to in this context?

    <p>A decrease in response to repeated stimulation. (A)</p> Signup and view all the answers

    What is the relationship between language acquisition and habituation?

    <p>Bilingual infants habituate faster than monolingual infants. (C)</p> Signup and view all the answers

    What is classical conditioning?

    <p>Learning by associating a neutral stimulus with a reflex. (C)</p> Signup and view all the answers

    What does "self-locomotion" refer to in this context?

    <p>The ability to move one's body independently. (B)</p> Signup and view all the answers

    Flashcards

    Grasping

    Closing the fingers around an object presented to the palm.

    Stepping

    Moving feet when held upright on a solid surface.

    Motor Milestones

    Key developmental movements acquired by infants as they grow.

    Pre-reaching movements

    Clumsy swiping movements by infants toward objects in sight.

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    Self-locomotion

    The ability of infants to move themselves, like crawling or walking.

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    Visual Cliff

    An apparatus used to study depth perception in infants.

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    Habituation

    A decrease in response to repeated stimulation, indicating learning.

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    Classical Conditioning

    Learning that associates an initial stimulus with a reflexive response.

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    Colour Categorization Preference

    Infants show preference for categorizing colors before language development.

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    Face-Like Shape Preference

    Infants naturally prefer shapes resembling human faces.

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    Perceptual Narrowing

    Decrease in distinguishing unfamiliar faces as infants grow familiar with their own racial or social group faces.

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    Newborn Face Bias

    Newborns prefer face-like stimuli, including human and monkey faces.

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    Object Perception: Perceptual Constancy

    Ability to perceive objects as constant despite changes in viewing conditions.

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    Object Segregation

    Ability to identify separate objects within a visual array.

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    Attention to Faces Development

    Developmental shifts in infant focus from eyes to mouths.

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    Cultural Influence on Perception

    Culture impacts how infants perceive scenes and focus their attention.

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    Operant Conditioning

    Learning based on the consequences of behavior, involving reinforcement or punishment.

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    Positive Reinforcement

    A reward that follows a behavior, increasing its likelihood of recurrence.

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    Observational Learning

    Learning that occurs through observing the behavior of others.

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    Phoneme

    The smallest unit of sound that can change meaning in a language.

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    Morpheme

    The smallest unit of meaning in a language, made of phonemes.

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    Syntax

    Rules determining how words from different categories can be combined.

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    Pragmatics

    Understanding the social context and practical use of language.

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    Voice Onset Time (VOT)

    The duration from air passing through lips to vocal cord vibration.

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    Word Segmentation

    Identifying word boundaries in continuous speech.

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    Distributional Properties

    Certain sounds in a language appear together more frequently than others.

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    Babbling

    Producing repeated syllable sounds in early language development.

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    Intersubjectivity

    Mutual understanding between two individuals.

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    Joint Attention

    Two people focusing on the same object or event.

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    Overextension

    Using a word too broadly, beyond its correct meaning.

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    Underextension

    Using a word too narrowly, restricting its meaning.

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    Telegraphic Speech

    Short utterances, usually two words, omitting non-essential words.

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    Overregularization

    Errors where children apply regular rules to irregular forms of words.

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    Language Development by Age 6

    By age 6, children understand 10,000 words and can sustain conversations.

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    Concepts

    General ideas that categorize objects, events, or qualities based on similarity.

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    Category Hierarchies

    Organization of categories by set-subset relations, like animal/dog/poodle.

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    Causal Understanding

    Children's quest for knowledge about causes and effects in the world.

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    Dividing Objects by Categories

    Children categorize objects into general groups like inanimate objects or animals.

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    Visual Attention in Infants

    Infants prefer looking at people, indicating social awareness.

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    Genie

    A girl who had little exposure to language until age 13.

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    Infant-Directed Speech (IDS)

    A specific way adults speak to infants, characterized by higher pitch and slower rate.

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    Bilingual Infants

    Infants who learn two languages, can discriminate sounds at the same pace as monolingual peers.

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    Code Switching

    Switching between two linguistic systems within a conversation or speech.

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    Prosody

    The rhythm and melody of spoken language that aids in comprehension.

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    Speech Perception

    The process of interpreting and understanding spoken language.

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    Categorical Perception

    The classification of speech sounds into distinct categories.

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    Cognitive Control

    Mental processes involved in controlling attention and managing tasks.

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    Study Notes

    Sensation

    • Involves processing basic information from the external world
    • Uses receptors in sense organs and the brain

    Perception

    • Organizes and interprets sensory information
    • Focuses on objects, events, and spatial layout

    Methods for Studying Infant Visual Perception

    • Preferential-looking Technique:
      • Method for studying visual attention in infants
      • Presents two images simultaneously
      • Measures preference by observing which image infants look at longer
    • Fantz Visual Stimuli:
      • Used in preferential-looking technique
      • Developed by Robert Fantz
      • Involves presenting visual stimuli to study infant perception
    • Modern Version with Automatic Eye Tracker:
      • Contemporary adaptation of preferential-looking technique
      • Incorporates automatic eye-tracking technology for more precise measurements of infant visual attention

    Visual Acuity and Colour Perception

    • Visual Acuity:
      • Definition: Sharpness and clarity of vision
      • Assessed through the ability to perceive simple and complex patterns
    • Contrast Sensitivity
      • Definition: Ability to detect differences in light and dark areas
      • Involves distinguishing between high-contrasting and low-contrasting patterns
    • Cone Cells:
      • Light-sensitive neurons concentrated in the fovea (central retina)
      • Critical for visual acuity
      • Development in infants is not fully developed at birth, leading to lower acuity (e.g., 20/120 at birth)
    • Colour Perception Development:
      • Emerges around 2 months of age
      • Infants show a preference for unique hues over combinations of hues
      • Research using fNIRS suggests colour language categories exist in an infant's brain before birth
      • Infants demonstrate a preference for colour categorization before acquiring language skills

    Face Perception in Infancy

    • Infants prefer face-like shapes
    • Face perception is shaped by perceptual narrowing
      • As infants gain experience with faces (particularly their own race/social group) their ability to distinguish faces outside familiar categories decreases
      • This leads to a narrowing of their face perception abilities, becoming more adept at recognizing familiar faces and less skilled at identifying unfamiliar ones

    Newborn Stage to 9 Months

    • Newborn stage: general bias for face-like stimuli, with interest in human and monkey faces
    • 6-month-olds: discriminate between human and monkey faces, generalist approach
    • 9-month-olds: specialization occurs, focusing solely on human faces
    • Attentional changes across development
      • 4 months: eyes are the focus of fixation
      • 6 months +: fixation on mouths
    • 2 years: infants can track where others are looking

    Object Perception

    • Perceptual Constancy: Perceiving objects as maintaining constant size, shape, and color despite variations in the retinal image.
    • Object segregation
      • Identification of separate objects in a visual array
      • Infants benefit from experience with specific objects in understanding physical properties

    Role of Culture in Object Perception

    • Culture plays a significant role in how infants perceive scenes, influencing where they focus their attention
    • Early experiences affect the way infants perceive different cultural backgrounds and their relationships to each other

    Depth Perception

    • Optical expansion: As objects get closer, they project a larger image on the retina
    • Binocular disparity: Differences between what each eye sees
    • Stereopsis: Emerges between 4 and 7 months, and allows perception of distance and depth
    • Monocular depth: Pictorial cues

    Auditory Perception

    • Hearing is the most advanced sense at birth, but there are still improvements across infancy
    • Auditory localization: Perception of the location of a sound source

    Taste and Smell

    • Infants' sensitivity to taste develops prenatally.
    • Infants can recognize the smell of their mothers and possibly other women

    Motor Milestones

    • Infants progress quickly in acquiring basic movement patterns
    • Differences exist across individuals and cultures

    Visual Cliff

    • Experimental apparatus used to study depth perception
    • Infants' responses to the drop-off demonstrate their ability to integrate visual cues

    Habituation

    • Simple, adaptive learning form; decrease in response to repeated stimulation
    • Learning has taken place.
    • Bilingual infants show faster habituation

    Classical Conditioning

    • Associating an initial stimulus with a stimulus that always evokes a particular reflexive response

    Operant Conditioning

    • Learning the relationship between one's behavior and its consequences

    Observational Learning/Imitation

    • Learning through observation of other people's behavior

    Language Development

    • The Components of Language
      • Generative system for an infinite number of sentences
      • Phonemes (smallest units of meaningful sound)
      • Morphemes (smallest units of meaning)
      • Syntax (rules for combining words into sentences)

    Language in Human and Nonhuman Primates

    • Chimpanzees and bonobos have demonstrated communicative abilities
    • Washoe and Koko learned ASL and combined signs
    • Kanzi used a lexigram system to communicate
    • Understanding of various aspects of language, such as semantics, syntax, and pragmatics

    Hemispheric Language Differences

    • Left hemisphere involved in comprehension and production, especially for right-handed individuals
    • Some ability for the right hemisphere to compensate for damage to the left hemisphere.
    • Early years are sensitive to language learning

    Sensitive Period of Acquisition

    • Learning language is highly receptive during early years/childhood

    Research on Language Learning in Humans

    • Genie's case study highlights the critical role of early exposure to language
    • Adults' language learning abilities
    • Deaf community language learners

    Speech Perception

    • Understanding prosody
    • Categorical perception
    • Voice onset time (VOT)
    • Word segmentation

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    Description

    Test your knowledge on infant perceptual development and factors influencing it with this quiz. Explore topics such as object perception, gaze tracking, and the role of culture in infant perception. Challenge yourself to understand key concepts and case studies relevant to developmental psychology.

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