Perception of complex sounds in budgerigars (Melopsittacus undulatus) with temporary hearing loss

The Journal of the Acoustical Society of America
R J DoolingTracy L Reid

Abstract

Songbirds and parrots deafened as nestlings fail to develop normal vocalizations, while birds deafened as adults show a gradual deterioration in the quality and precision of vocal production. Beyond this, little is known about the effect of hearing loss on the perception of vocalizations. Here, we induced temporary hearing loss in budgerigars with kanamycin and tested several aspects of the hearing, including the perception of complex, species-specific vocalizations. The ability of these birds to discriminate among acoustically distinct vocalizations was not impaired but the ability to make fine-grain discriminations among acoustically similar vocalizations was affected, even weeks after the basilar papilla had been repopulated with new hair cells. Interestingly, these birds were initially unable to recognize previously familiar contact calls in a classification task-suggesting that previously familiar vocalizations sounded unfamiliar with new hair cells. Eventually, in spite of slightly elevated absolute thresholds, the performance of birds on discrimination and perceptual recognition of vocalizations tasks returned to original levels. Thus, even though vocalizations may initially sound different with new hair cells, there are...Continue Reading

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Citations

Feb 6, 2008·The Journal of the Acoustical Society of America·Amanda M LauerKirsten Poling
Jan 17, 2013·Hearing Research·Edwin W RubelJennifer S Stone
Dec 4, 2012·Hearing Research·Brenda M RyalsRobert J Dooling
Jun 3, 2008·Hearing Research·Henry J AdlerRobert J Dooling
Jul 24, 2012·The Journal of Comparative Neurology·Jae-Jin SongSeung Ha Oh
Apr 7, 2018·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Angela Medina-GarcíaTimothy F Wright
May 11, 2018·Journal of the Association for Research in Otolaryngology : JARO·Kenneth S Henry, Kristina S Abrams

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