Influence of hyperthermia on cochlear micromechanical properties in humans
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Updated: Nov 5, 2026

Cochlear Surface Preparation in the Adult Mouse
Published on: November 6, 2019
C Ferber-Viart1, G Savourey, C Garcia
1Université Claude Bernard Lyon I, Laboratoire Perceptions et Mécanismes Auditifs, URA CNRS 1447, Hôpital Edouard Herriot, France.
Abstract:
We investigated the effect of body temperature on transient evoked otoacoustic emissions (TEOAEs) in humans. Hyperthermic conditions were obtained in adults in a climatic chamber. During hyperthermia up to an average temperature of 38.4 degrees C, significant falls were found in total amplitude and peak values of TEOAEs: by 1.3 dB SPL/degree C and 2.3 dB/degree C, respectively. This inhibition affected all spectrum components equally. These findings indicate that the outer hair cell micromechanical activity that is presumed to be measured by TEOAEs is not independent of variations in body temperature. The reduction found in hyperthermia suggests that temperature-dependent mechanisms are involved in the generation of TEOAEs.
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