Development of Auditory Sensitivity in Barn Owls (Tyto furcata pratincola)

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dc.contributor.advisorCarr, Catherine E.en_US
dc.contributor.authorBaxter, Caitlin S.en_US
dc.contributor.departmentNeuroscience and Cognitive Scienceen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2014-06-24T06:20:33Z
dc.date.available2014-06-24T06:20:33Z
dc.date.issued2014en_US
dc.description.abstractThe development of hearing in the juvenile barn owl was investigated using tones (500 Hz to 12 kHz) and clicks of different rates (5-90 Hz). Auditory evoked potentials (AEPs) of the auditory nerve were recorded using the auditory brainstem response (ABR). Barn owl hearing matured in a similar trend to other developing vertebrates, including kittens, budgerigars, chickens, and gerbils. The onset of hearing began sometime earlier than the second week post-hatch, and proceeded in a frequency-dependent manner. Adult-like thresholds were reached in a progression from low to high frequency, and sensitivity was mature by P60. These patterns were consistent with CAPs recorded from juvenile barn owls in Europe. ABRs for clicks presented at 5-60 Hz demonstrated increasing amplitudes and decreasing latencies as barn owl chicks aged, while ABRs for clicks presented at 90 Hz were barely distinguishable between adults and juveniles.  en_US
dc.identifier.urihttp://hdl.handle.net/1903/15414
dc.language.isoenen_US
dc.subject.pqcontrolledNeurosciencesen_US
dc.subject.pqcontrolledBiologyen_US
dc.subject.pquncontrolledABRen_US
dc.subject.pquncontrolledauditionen_US
dc.subject.pquncontrolledauditory brainstem responseen_US
dc.subject.pquncontrolledbarn owlen_US
dc.subject.pquncontrolleddevelopmenten_US
dc.subject.pquncontrolledhearingen_US
dc.titleDevelopment of Auditory Sensitivity in Barn Owls (Tyto furcata pratincola)en_US
dc.typeThesisen_US

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