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Relation between Body Structure and Hearing during Soft Tissue Auditory Stimulation.

Cahtia Adelman1, Michal Kaufmann Yehezkely2, Shai Chordekar3

  • 1Speech & Hearing Center, Hebrew University-Hadassah Medical Center, P.O. Box 12000, 91120 Jerusalem, Israel ; Department of Communication Disorders, Hadassah Academic College, 37 Hanevi'im Street, P.O. Box 1114, 91010 Jerusalem, Israel.

Biomed Research International
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Summary
This summary is machine-generated.

Bone conduction hearing can be elicited via soft tissue stimulation. In males, leaner body types had lower thresholds for hearing on the back, suggesting body composition influences auditory sensation sites.

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Area of Science:

  • Audiology
  • Bioacoustics
  • Human Physiology

Background:

  • Auditory sensation can be elicited through bone conduction via soft tissue stimulation.
  • The influence of body build on auditory thresholds through soft tissue stimulation is not well understood.

Purpose of the Study:

  • To map auditory sensation thresholds across different soft tissue sites (head, neck, thorax).
  • To investigate the correlation between body build and the location of effective soft tissue stimulation for hearing.

Main Methods:

  • Two experiments were conducted on normal-hearing subjects.
  • Determined the lowest soft tissue stimulation site for a 60 dB SL tone at 2.0 kHz.
  • Assessed auditory thresholds along the midline of the head, neck, and back.

Main Results:

  • In males, a leaner body build correlated with lower auditory thresholds on the back.
  • No significant correlation was found between body build and back thresholds in females.
  • Auditory thresholds were lowest on the head, highest on the back, with a transitional zone along the neck.

Conclusions:

  • Body composition, particularly in males, influences the optimal soft tissue site for eliciting bone conduction hearing.
  • Differences in soft tissue distribution across body regions likely account for variations in auditory sensation thresholds.