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Bradford J. May, Ph.D.

Photo of Dr. Bradford J. May, Ph.D.
  • Professor of Otolaryngology - Head and Neck Surgery

Research Interests

Sound Localization Signals in Noise Speech Encoding; Neurobiology of Hearing Sensorineural Hearing Loss Tinnitus


Dr. Bradford May received his Ph.D. in Biopsychology from the University of Michigan after completing his undergraduate degree in Zoology from Indiana University. He completed Johns Hopkins Fellowship program in Biomedical Engineering. After which, he continued his research in Otology, 

Dr. May continues his research in auditory development, sound localization, neurobiology of hearing, sensorineural hearing loss and tinnitus. more


  • Professor of Otolaryngology - Head and Neck Surgery

Departments / Divisions

Centers & Institutes

  • Hearing and Balance, Center for


Additional Training

Johns Hopkins University, Baltimore, Maryland, 1990, Biomedical Engineering

Research & Publications

Selected Publications

May BJ, Sachs MB (1992) Dynamic range of neural rate responses in the ventral cochlear nucleus of awake cats. J Neurophysiol 68: 1589–1602.

May BJ, McQuone SJ (1995) Effects of bilateral olivocochlear lesions on pure-tone intensity discrimination in cats. Aud Neurosci 1:385–400.

May BJ, Huang AY (1996) Sound orientation behavior in cats: I. Localization of broadband noise. J Acoust Soc Am 100:1059–1069.

May BJ, Le Prell GS, Sachs MB (1998) Vowel representations in the ventral cochlear nucleus of the cat: Effects of level, background noise, and behavioral state. J Neurophysiol, 79:1755-1767.

Ramachandran R, Davis K, May BJ (1999) Single-unit responses in the inferior colliculus of decerebrate cats: I. Classification based on frequency response maps. J Neurophysiol 82:152-163.

May BJ (2000) Role of the dorsal cochlear nucleus in sound localization behavior in cats. Hear Res 148:74-87.

May BJ, Prosen CA, Dorn D, Vetter DE (2002) Behavioural investigation of some possible effects of the central olivocochlear pathways in transgenic mice. Hear Res 171: 142-157.

May BJ, Budelis J, Niparko JK (2004) Behavioral studies of the olivocochlear efferent system: Learning to listen in noise. Arch Otolaryngol Head Neck Surg 130:660-664.

Ma W-L D, Hidaka H, May BJ (2006) Spontaneous activity in the inferior colliculus of CBA/J mice after manipulations that induce tinnitus. Hear Res 212:9-21.

May BJ, Kimar S, Prosen CA (2006) Auditory filter shapes of CBA/CaJ mice: Behavioral assessments. J Acoust Soc Am 120:321-330.

May BJ, Anderson MJ, Roos M (2008) The role of broadband inhibition in the rate representation of spectral cues for sound localization in the inferior colliculus. Hear Res doi:10.1016/j.heares.2008.01.008.

Videos & Media

Lectures and Presentations

  • Behavioral strategies for assessing tinnitus in animals
    Association for Research in Otolaryngology (01/01/2013)
  • New directions in tinnitus research
    University at Buffalo (01/01/2013)
  • New directions in tinnitus research
    Gordon Research Conference (01/09/2012)
  • New directions in tinnitus research
    Hearing Loss Association of America (01/22/2012)
  • New directions in tinnitus research
    Hearing Loss Association of America (01/12/2012)
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