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Related Concept Videos

Language Development01:22

Language Development

315
Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
315
Socioemotional Development during Infancy01:30

Socioemotional Development during Infancy

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Socio-emotional development in infancy is primarily shaped by early emotional responses and social connections, with temperament playing a central role. Temperament refers to the consistent patterns in an individual's emotional and behavioral responses, observable even in infancy. By examining temperament, researchers can better understand an infant's unique ways of interacting with the world, influencing subsequent personality and socio-emotional growth.
Primary Temperament Types
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Components of Language01:24

Components of Language

240
Language, whether spoken, signed, or written, consists of specific components: lexicon and grammar. The lexicon is the vocabulary of a language, comprising its words. Grammar is the set of rules used to convey meaning through the lexicon. For example, English grammar adds “-ed” to most verbs to indicate past tense. Words are formed by combining phonemes, which are the basic sound units of a language. Different languages have different sets of phonemes (e.g., “ah” vs.
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Language and Cognition01:27

Language and Cognition

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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
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Related Experiment Video

Updated: Jun 3, 2025

Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
09:09

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Published on: September 27, 2024

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Prosodic variation between contexts in infant-directed speech.

Jenna DiStefano1,2, Michelle Cohn3, Georgia Zellou3

  • 1Center for Mind and Brain, University of California, Davis, USA.

Journal of Child Language
|January 13, 2025
PubMed
Summary
This summary is machine-generated.

Parents modify infant-directed speech (IDS) based on context. Speech prosody, including pitch range and word rate, varied significantly across different interactive tasks, with storytelling eliciting the most distinct vocal adjustments.

Keywords:
infant-directed speechlanguage developmentprosody

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Area of Science:

  • Linguistics
  • Developmental Psychology
  • Acoustic Phonetics

Background:

  • Speech patterns adapt to listeners, notably in infant-directed speech (IDS).
  • Limited research exists on how parental speech adjustments to infants vary across different interactive contexts.
  • Understanding these variations is crucial as infants and parents engage in diverse daily activities.

Purpose of the Study:

  • To investigate whether acoustic properties of infant-directed speech (IDS) in English differ across three distinct in-lab tasks.
  • To analyze how prosodic features of parental speech change in response to varying interactive contexts with infants.

Main Methods:

  • Analysis of acoustic features in English infant-directed speech (IDS).
  • Measured prosodic variables included mean fundamental frequency (F0, pitch), F0 range, and word rate.
  • Speech samples were collected during three in-lab tasks: object sorting, free play, and storytelling.

Main Results:

  • Significant variations in parents' pitch range and word rate were observed in infant-directed speech (IDS) depending on the task.
  • The storytelling task was characterized by a wider pitch range and a faster word rate compared to other tasks.
  • These findings indicate that contextual factors influence parental speech modifications directed at infants.

Conclusions:

  • Parental speech directed at infants is not monolithic but is dynamically adjusted based on the interactive context.
  • Prosodic features of infant-directed speech (IDS) show task-dependent modulation, highlighting the flexibility of parent-infant communication.
  • The study underscores the importance of considering the specific activity when examining speech adjustments in infant-directed communication.