Distortion Product Otoacoustic Emissions (DPOAE) after exposure to noise and music of equal energy

Forfattere

  • Jesper Hvass Schmidt Dept. of Occupational and Environmental Medicine, Odense University Hospital, DK-5000 Odense C, Denmark; Dept. of Audiology Odense University Hospital, DK-5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, DK-5230 Odense M, Denmark
  • Ellen Raben Pedersen Dept. of Occupational and Environmental Medicine, Odense University Hospital, DK-5000 Odense C, Denmark; Institute of Clinical Research, University of Southern Denmark, DK-5230 Odense M, Denmark
  • Bjørn Petersen The Royal Academy of Music, DK-8000 Aarhus C, Denmark
  • Peter Vuust The Royal Academy of Music, DK-8000 Aarhus C, Denmark; Center of Functionally Integrative Neuroscience, Aarhus University, DK-8000 Aarhus C

Resumé

Exposure to intense noise and music can result in Temporary Threshold Shifts (TTS). Previous investigations suggest that music and noise may induce TTS differently and that the magnitude of TTS after noise exposure is larger compared to music exposure. Listening to music may induce unknown effects in the medial olivocochlear bundle which may suppress the size of the TTS. Ten normal hearing listeners were exposed for 10 minutes to 100 dB SPL familiar and unfamiliar music or noise on separate days. During the exposure of music or noise the test subjects focused entirely on the auditory stimulus. In a parallel experiment, the subjects had non-auditory attention on a puzzle task (the Tower of Hanoi). The order of the experiments was randomized. Pre- and post-exposure Distortion Product Otoacoustic Emissions (DPOAE) were measured at 2, 3 and 4 kHz. DPOAE response was suppressed on both ears immediately after noise exposure and on the left or the right ear after familiar and unfamiliar music exposure, respectively. Auditory attention compared to non-auditory attention resulted in higher DPOAE suppression on the left ear. In conclusion, music and noise with equal energy suppressed DPOAE responses on both ears but with noticeable differences between ears.

Referencer

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Yderligere filer

Publiceret

2011-12-15

Citation/Eksport

Schmidt, J. H., Pedersen, E. R., Petersen, B., & Vuust, P. (2011). Distortion Product Otoacoustic Emissions (DPOAE) after exposure to noise and music of equal energy. Proceedings of the International Symposium on Auditory and Audiological Research, 3, 207–214. Hentet fra https://proceedings.isaar.eu/index.php/isaarproc/article/view/2011-25

Nummer

Sektion

2011/1. Indicators of hearing impairment and measures of speech perception