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Related Experiment Video

Updated: May 16, 2026

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
14:05

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

Published on: January 23, 2017

Investigating the auditory enhancement phenomenon using behavioral temporal masking patterns.

Yi Shen1, Virginia M Richards

  • 1Department of Cognitive Sciences, University of California, Irvine, California 92697-5100, USA. shen.yi@uci.edu

The Journal of the Acoustical Society of America
|November 14, 2012
PubMed
Summary

Precursors enhance narrowband signal detection by reducing masker interference. This study found enhancement occurs only when precursor and masker levels match, contrary to model predictions.

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Area of Science:

  • Auditory Neuroscience
  • Psychoacoustics

Background:

  • Masking occurs when a masker signal interferes with the detection of a target signal.
  • Enhancement is a phenomenon where a precursor signal reduces masking of a target signal.

Purpose of the Study:

  • Investigate enhancement in auditory masking.
  • Compare psychophysical data with a neural adaptation-of-inhibition model.

Main Methods:

  • Measured enhancement for narrowband noise detection with a notched masker.
  • Assessed masking patterns for tone pips added to a narrowband signal.
  • Varied temporal separation and precursor level.

Main Results:

  • Psychophysical enhancement was observed.

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Related Experiment Videos

Last Updated: May 16, 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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Published on: January 23, 2017

A Method to Study Adaptation to Left-Right Reversed Audition
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A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials
12:03

A Method for Tracking the Time Evolution of Steady-State Evoked Potentials

Published on: May 25, 2019

  • Enhancement depended on precursor and masker levels being matched.
  • A neural adaptation model predicted enhancement across all precursor levels.

    • Conclusions:

    • The model captured temporal dynamics but not level-dependent enhancement.
    • Psychophysical results suggest specific level-matching is crucial for enhancement.