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Related Concept Videos

Language Development01:22

Language Development

644
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...
644

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Related Experiment Video

Updated: Nov 22, 2025

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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Assessing Speech Discrimination in Individual Infants.

Derek M Houston1, David L Horn1, Rong Qi2

  • 1Department of Otolaryngology Indiana University School of Medicine.

Infancy : the Official Journal of the International Society on Infant Studies
|January 8, 2021
PubMed
Summary

A new hybrid visual habituation procedure (VHP) effectively assesses individual infant speech discrimination. This method shows promise for diagnosing hearing impairment in infants.

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Area of Science:

  • Developmental Psychology
  • Speech Perception
  • Auditory Neuroscience

Background:

  • Assessing speech discrimination in infants is crucial for early diagnosis, especially in clinical populations like those with hearing impairment.
  • Existing infant speech discrimination methods often focus on group data and have high attrition rates, limiting their use for individual assessment.
  • The Visual Habituation Procedure (VHP) is a promising paradigm for infant speech perception research.

Purpose of the Study:

  • To develop and evaluate four variants of the Visual Habituation Procedure (VHP) for assessing individual 9-month-old infants' ability to discriminate nonwords.
  • To determine which VHP variant offers the most robust and reliable method for detecting individual speech discrimination skills.
  • To explore the potential of an improved VHP for clinical applications in infant hearing assessment.

Main Methods:

  • Four variants of the Visual Habituation Procedure (VHP) were developed and tested with 9-month-old infants.
  • Infants were habituated to audiovisual nonword repetitions (seepug) followed by test trials with old (seepug) and novel (boodup) nonwords.
  • Variants included an extended procedure, an oddity procedure, a stimulus alternation procedure, and a hybrid procedure combining elements of the others.

Main Results:

  • The hybrid VHP variant demonstrated the highest success rate in detecting statistically significant speech discrimination in individual infants (80% success).
  • Both oddity and stimulus alternation features contributed to the robustness of the hybrid VHP.
  • The hybrid VHP variant exhibited good test-retest reliability, indicating consistent performance.

Conclusions:

  • The developed hybrid VHP is a robust and reliable method for assessing individual infant speech discrimination.
  • This enhanced VHP methodology holds significant potential for diagnostic applications in infant populations, particularly those with hearing impairments.
  • The findings support the use of tailored VHP variants for individual infant speech perception research and clinical evaluation.