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Related Concept Videos

Echo01:06

Echo

817
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
817

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Related Experiment Video

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Sleep duration is associated with auditory radiation microstructure.

Toshikazu Ikuta1, Taylor E Stansberry1, Rebecca O Lowe1

  • 1Department of Communication Sciences and Disorders, School of Applied Sciences, University of Mississippi , Oxford, MS, USA.

Neurological Research
|June 17, 2020
PubMed
Summary
This summary is machine-generated.

The auditory radiation, a key hearing pathway, shows an inverse-U shaped association with sleep duration. This suggests its role in the complex interplay between sleep and hearing mechanisms.

Keywords:
Auditory Radiationdiffusion tensor imagingsleep durationwhite matter

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Area of Science:

  • Neuroscience
  • Sleep Science
  • Auditory Neuroscience

Background:

  • Hearing and sleep interactions are established but poorly understood at the neural level.
  • Neural pathways linking hearing and sleep require further investigation.

Purpose of the Study:

  • To investigate the association between the auditory radiation and sleep duration.
  • To explore the role of the auditory radiation in the hearing-sleep interaction.

Main Methods:

  • Diffusion Tensor Imaging (DTI) data from the NKI-Rockland Sample (N=465) were analyzed.
  • Probabilistic tractography identified white matter tracts between the thalamus and Heschl's gyrus.
  • Mean fractional anisotropy (FA) of the auditory radiation was correlated with sleep duration.

Main Results:

  • A significant inverse-U shaped association was observed between auditory radiation FA and sleep duration.
  • This finding indicates a non-linear relationship between white matter integrity in the auditory pathway and hours of sleep.

Conclusions:

  • The auditory radiation is implicated as a neural pathway involved in the sleep-hearing interaction.
  • This study provides initial evidence linking auditory radiation integrity to sleep duration, though causality is not established.