The Masked ABR (mABR): a New Measurement Method for the Auditory Brainstem Response

Journal of the Association for Research in Otolaryngology : JARO
Christian BrandtJakob Christensen-Dalsgaard

Abstract

The auditory brainstem response (ABR) is relatively non-invasive, and in many species, the only practical way to assess auditory sensitivity. The two main methods for measuring ABR are using either transients or tone bursts as a stimulus. The transient stimulus produces strong neural responses that contain no frequency information. In contrast, tone bursts stimulate only a small part of the auditory system, eliciting weaker neural responses but supplying frequency information. Furthermore, short tone bursts become less and less frequency specific with increasing stimulus wavelength, making them unsuitable for testing low-frequency hearing. Here, we develop a method that can measure sensitivity to both low and high-frequency stimuli. The method is based on masking of a transient response by long-duration sinusoids. The measurement system is developed as a highly portable system that runs on battery power. It has been used in a variety of animals in our lab and in the field, including squid (Mooney et al. in J Exp Biol 213: 3748-3759, 2010), lungfish (Christensen-Dalsgaard et al. in J Neurophys 105: 1992-2004, 2011b), alligators (Bierman et al. in J Exp Biol 217: 1094-1107, 2014), and mink (Brandt et al. in J Exp Biol 216: 3542-3...Continue Reading

References

Dec 1, 1982·Electroencephalography and Clinical Neurophysiology·J T CorwinJ Schweitzer
Dec 9, 1997·Audiology & Neuro-otology·D R Stapells, P Oates
Sep 24, 2002·The Journal of the Acoustical Society of America·Elizabeth F Brittan-PowellOtto Gleich
Aug 17, 2010·The Journal of the Acoustical Society of America·Elizabeth F Brittan-PowellRobert J Dooling
Sep 10, 2010·Biology Letters·Jakob Christensen-DalsgaardPeter T Madsen
Feb 18, 2011·Journal of Neurophysiology·Jakob Christensen-DalsgaardCatherine E Carr
Mar 23, 2012·Proceedings. Biological Sciences·Jakob Christensen-DalsgaardCatherine E Carr
Jun 22, 2013·The Journal of Experimental Biology·Christian BrandtAnnemarie Surlykke
Mar 29, 2014·The Journal of Experimental Biology·Hilary S BiermanDaniel J Tollin

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Citations

Nov 9, 2020·The Journal of Experimental Biology·G CapshawC E Carr
Dec 4, 2020·The Journal of Experimental Biology·Tanya B LauridsenJakob Christensen-Dalsgaard
Sep 29, 2021·The Journal of Experimental Biology·G CapshawC E Carr

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