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  • Title: Masked auditory thresholds in three species of birds, as measured by the auditory brainstem response (L).
    Author: Noirot IC, Brittan-Powell EF, Dooling RJ.
    Journal: J Acoust Soc Am; 2011 Jun; 129(6):3445-8. PubMed ID: 21682367.
    Abstract:
    Auditory brainstem responses (ABRs) were recorded in adult budgerigars, canaries, and zebra finches in quiet and in three levels of white noise for tone stimuli between 1 and 4 kHz. Similar to behavioral results, masked ABR thresholds increased linearly with increasing noise levels. When the three species are considered together, ABR-derived CRs were higher than behavioral CRs by 18-23 dB between 2 and 4 kHz and by about 30 dB at 1 kHz. This study clarifies the utility of using ABRs for estimating masked auditory thresholds in natural environmental noises in species that cannot be tested behaviorally.
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