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Related Concept Videos

Language Development01:22

Language Development

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.
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Directional Terms

Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to the body's upright...
Components of Language01:24

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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. “eh”). Phonemes combine to...
Perceiving Loudness, Pitch, and Location01:21

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The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
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Elaborative Rehearsals01:07

Elaborative Rehearsals

Elaborative rehearsal is a crucial cognitive strategy that strengthens information encoding in long-term memory by making meaningful connections between new data and pre-existing knowledge. This approach contrasts with maintenance rehearsal, which involves simple repetition without delving into the significance of the information. While maintenance rehearsal might temporarily keep information active in short-term memory, it is less effective for long-term retention.
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Lateralization01:28

Lateralization

Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.

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Related Experiment Video

Updated: Jun 28, 2026

Assessing the Coherence of Parents' Short Narratives Regarding their Child Using the Five-Minute Speech Sample Procedure
07:56

Assessing the Coherence of Parents' Short Narratives Regarding their Child Using the Five-Minute Speech Sample Procedure

Published on: September 19, 2019

Prosodic patterns in Hebrew child-directed speech.

Osnat Segal1, Bracha Nir-Sagiv, Liat Kishon-Rabin

  • 1Tel-Aviv University. segalll@netvision.net.il

Journal of Child Language
|November 14, 2008
PubMed
Summary
This summary is machine-generated.

Hebrew child-directed speech (CDS) primarily uses short words with final stress. Prosody aids infants in learning word segmentation and lexical categories, with more iambic words appearing as children develop.

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Last Updated: Jun 28, 2026

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Area of Science:

  • Linguistics
  • Developmental Psychology
  • Speech Science

Background:

  • Child-directed speech (CDS) exhibits unique prosodic features.
  • Understanding prosody's role in early language acquisition is crucial.

Purpose of the Study:

  • To analyze prosodic patterns in Hebrew CDS for infants aged 0;9-3;0 years.
  • To investigate the distribution of syllables and stress across lexical categories.

Main Methods:

  • Longitudinal analysis of 228,946 tokens (8,075 types) of Hebrew CDS.
  • Categorization of words into open-class, closed-class, and between-class items.
  • Examination of prosodic patterns, including syllable count and stress placement.

Main Results:

  • Hebrew CDS predominantly features mono- and bisyllabic words.
  • Word-final stress is the most common pattern across all lexical categories.
  • Verbs exhibit word-final stress, while nouns show trochaic and iambic patterns.

Conclusions:

  • Prosodic features in Hebrew CDS support word segmentation and lexical class assignment in infancy.
  • A developmental increase in iambic words within CDS was observed.
  • Findings highlight the significance of prosody in early language development.