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Related Concept Videos

Language Development01:22

Language Development

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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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Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
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Respiratory Depth
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
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Developmental psychology explores the changes and continuities in human abilities throughout life, encompassing physical, cognitive, linguistic, and social dimensions. Human development is not restricted to growth, but includes aspects of decline, particularly in physical abilities as individuals age. Developmental psychologists seek to understand how people change as they age and how their mental and social skills evolve.Developmental MilestonesA key concept in developmental psychology is...
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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Related Experiment Video

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Infant Auditory Processing and Event-related Brain Oscillations
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Age-related increases in speech rhythm in typically developing children.

Grace Gervino1, Janina Boecher2, Ho Ming Chow1

  • 1Department of Communication Sciences and Disorders, University of Delaware, Newark, Delaware 19713, USA.

The Journal of the Acoustical Society of America
|January 13, 2026
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Summary

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Area of Science:

  • Speech-language pathology
  • Developmental linguistics
  • Acoustic phonetics

Background:

  • Understanding speech rhythm development in children is crucial for identifying typical language acquisition milestones.
  • Previous research has not fully detailed the developmental trajectory of speech rhythm across preschool and school-age years.
  • Investigating sex-based differences in speech rhythm can offer insights into potential variations in speech-language development.

Purpose of the Study:

  • To analyze the development of speech rhythm in typically developing children aged three to nine years.
  • To explore potential sex-based differences in speech rhythm during childhood.
  • To enhance understanding of speech-language development through the lens of acoustic rhythm.

Main Methods:

  • Collected audio recordings of speech production from 58 typically developing children (29 males, 29 females) aged 3-9 years during a narrative task.
  • Utilized envelope-based acoustic measures to quantify speech rhythm, focusing on periodicity in the speech envelope.
  • Applied general linear models to analyze rhythm measures in relation to age and sex.

Main Results:

  • Envelope-based measures revealed that as children aged, their speech exhibited increased high-frequency content.
  • Speech rhythm transitioned to become increasingly dominated by syllabic-level structures with increasing age.
  • Both male and female participants demonstrated comparable refinement in speech rhythm, indicated by developmental increases in envelope-based measures.

Conclusions:

  • Speech rhythm undergoes significant refinement during the preschool and school-age years, characterized by a shift towards syllabic-level organization.
  • The development of speech rhythm appears to be similar between sexes, suggesting a common developmental pathway.
  • These findings contribute to a deeper understanding of typical speech-language development and acoustic phonetics in children.