ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2020
Auditory brainstem responses in the bat Carollia perspicillata: threshold calculation and relation to audiograms based on otoacoustic emission measurement.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 12 citations in OpenAlex.
- Echolocating bats show species-specific variation in susceptibility to acoustic forward masking.The Journal of the Acoustical Society of America · 2024Article
- Deviance Detection to Natural Stimuli in Population Responses of the Brainstem of Bats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Bats experience age-related hearing loss (presbycusis).Life science alliance · 2023Article
- Spectrally non-overlapping background noise disturbs echolocation via acoustic masking in the CF-FM bat,Conservation physiology · 2023Article
- Hearing sensitivity and amplitude coding in bats are differentially shaped by echolocation calls and social calls.Proceedings. Biological sciences · 2021Article
- Development of hearing in the big brown bat.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2021Article
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Authors and funding
4 authors at 1 institution in 1 country.
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Abstract
An objective method to evaluate auditory brainstem-evoked responses (ABR) based on the root-mean-square (rms) amplitude of the measured signal and bootstrapping procedures was used to determine threshold curves (see Lv et al. in Med Eng Phys 29:191-198, 2007; Linnenschmidt and Wiegrebe in Hear Res 373:85-95, 2019). The rms values and their significance for threshold determination depended strongly on the filtering of the signal. Using the minimum threshold values obtained at three different low-frequency filter corner frequencies (30, 100, 300 Hz), ABR threshold curves were calculated. The course of the ABR thresholds was comparable to that of published DPOAE (distortion-product otoacoustic emission) thresholds based on a - 10 dB SPL threshold criterion for the 2f1-f2 emission (Schlenther et al. in J Assoc Res Otolaryngol 15:695-705, 2014, frequency range 10-90 kHz). For frequencies between 20 and 80 kHz, which is the most sensitive part of the bat's audiogram, median thresholds ranged between 10 and 28 dB SPL, and the DPOAE thresholds ranged between 10 and 23 dB SPL. At frequencies below 20 kHz (5-20 kHz) and above 80 kHz (80-120 kHz), ABR thresholds increased by 20 dB/octave and 45 dB/octave, respectively. We conclude that the combination of objective threshold determination and multiple filtering of the signal gives reliable ABR thresholds comparable to cochlear threshold curves.
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