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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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Related Experiment Video

Updated: Jan 12, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
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Developmental Changes in Speech Frequency Weighting in Children.

A K Bosen1, A Frenette2, M Spratford1,2,3

  • 1Boys Town National Research Hospital, Omaha, Nebraska, USA.

Ear and Hearing
|November 7, 2025
PubMed
Summary
This summary is machine-generated.

Speech intelligibility in children changes with age, with older children relying more on higher frequency bands. These developmental shifts in frequency importance weights need to be considered for accurate speech recognition models.

Keywords:
Band importanceChild developmentSpeech recognition

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Area of Science:

  • Audiology
  • Developmental Psychology
  • Speech-Language Pathology

Background:

  • Speech intelligibility estimates rely on spectral band audibility and importance weights.
  • Clinical speech intelligibility metrics for children require age-specific adjustments due to developmental changes in speech recognition.
  • Previous research indicates developmental shifts in children's use of spectral cues, but individual differences in band importance require validation.

Purpose of the Study:

  • To investigate age-related differences in frequency band importance weights for speech recognition in children.
  • To explore the relationship between these band importance weights and developmental changes in vocabulary and cognitive abilities.

Main Methods:

  • Forty-two children (ages 6-13) with normal hearing performed a filtered word recognition task.
  • Auditory stimuli were filtered into six frequency bands (250-8000 Hz), with recognition accuracy regressed against band presence/absence.
  • Children also completed standardized vocabulary and cognitive assessments.

Main Results:

  • Frequency importance weights showed age-related changes, particularly for bands centered at 2000 and 4000 Hz, with older children assigning higher weights.
  • Specific frequency bands (500, 1000, 2000 Hz) were more important for recognizing words than nonwords.
  • Vocabulary and cognitive tasks did not predict band importance weights after controlling for age, though flanker task performance predicted overall recognition accuracy.

Conclusions:

  • Frequency band importance weights evolve developmentally in children.
  • Current models predicting speech recognition in children may overestimate accuracy if they do not account for these developmental changes.
  • Further research is needed to examine the impact of hearing loss on these developmental trajectories.