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Related Experiment Video

Updated: May 21, 2026

Testing Tactile Masking between the Forearms

Testing Tactile Masking between the Forearms

Published on: February 10, 2016

Acceptable noise level and psychophysical masking.

Dania A Rishiq¹, Ashley W Harkrider, Mark S Hedrick

¹University of Tennessee Health Science Center, Knoxville, TN, USA.

American Journal of Audiology

|June 22, 2012

Summary

Individuals with low acceptable noise levels (ANLs) may have reduced auditory cortical responsiveness. This suggests a potential link between ANLs and decreased sustained attention, impacting noise tolerance.

Area of Science:

Auditory Neuroscience
Psychoacoustics

Background:

Acceptable Noise Levels (ANLs) describe an individual's tolerance to background noise.
Understanding the neural basis of ANLs is crucial for addressing noise sensitivity.

Purpose of the Study:

To investigate whether afferent or efferent cortical pathways more significantly influence ANLs.
To compare temporal masking responses between individuals with low and high ANLs.

Main Methods:

19 normal-hearing adults (10 low ANL, 9 high ANL) participated.
Tone-in-noise simultaneous, forward, and backward masking tasks were employed.

Main Results:

No significant differences in masked thresholds were found between low and high ANL groups.

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The low ANL group required more threshold runs, indicating potential differences in response stability.

Conclusions:

Low ANLs appear associated with reduced afferent cortical responsiveness.
Findings suggest a possible link between low ANLs and diminished sustained attention.