26307-Munguia-Vazquez, Ray

Ray Munguia-Vazquez, PhD, MD

Adjunct Clinical Assistant Professor of Otolaryngology-Head & Neck Surgery


I am a clinical assistant professor of otolaryngology-head and neck surgery at IU School of Medicine-West Lafayette and in the Speech-Language and Hearing Sciences department at Purdue University. Since January 2013, I have taught courses in advanced electrophysiology, auditory and vestibular pathology, research, and medical audiology.

I am developing my research program to understand better how the auditory cortex adapts and responds to different pathological conditions such as auditory processing disorders (ADP) and sensorineural hearing loss, as well as in tinnitus and hearing loss following mild traumatic brain injuries. The primary goal of this research is to establish, with the aid of electrophysiological recordings, new protocols for early diagnosis and intervention in individuals with these disorders.




Key Publications

1.    Guakil-Haber, A., González-Arciniega, E., García-Enríquez, B., Olvera-Suarez, M.Y., Segovia-Forero, M.E., Munguia, R.(2019).Diffuse large B-cell Non-Hodgkin lymphoma of the ear with intracranial invasion: Clinical Experience.Int J Otorhinolaryngol Head Neck Surg, 5(1):193-198.
2.    Pinkl, J., Wilson, M.J., Billingsly, D., Munguia, R.(2017). Detailed Analysis of High Frequency ABRs in Patients with Tinnitus.International Tinnitus Journal, 21(1):34-42.
3.   Munguia, R.(2014). Auditory Processing Disorders: Earlier Diagnosis Possible? Communication Disorders Deaf Studies & Hearing Aids, 2(1), e110.
4.   Eggermont, J. J., Munguia, R., & Shaw, G.(2013). Cross-correlations between three units in cat primary auditory cortex. Hearing Research, 304, 179-187.
5.    Munguia, R., Pienkowski, M., & Eggermont, J. J. (2013). Spontaneous firing rate changes in cat primary auditory cortex following long-term exposure to non-traumatic noise exposure. Tinnitus without hearing loss? Neuroscience Letters, 546, 46-50. 
6.  Pienkowski, M., Munguia, R., & Eggermont, J. J. (2013). Effects of passive, moderate-level sound exposure on the mature auditory cortex: Spectral edges, spectrotemporal density, and real-world noise. Hearing Research, 296(1), 121-130.
7.  Eggermont, J. J., Munguia, R., Pienkowski, M., & Shaw, G.(2011). Comparison of LFP-based and spike-based spectro-temporal receptive fields and cross-correlation in cat primary auditory cortex. PLoS ONE, 6(5), e20046. doi: 10.1371/journal.pone.0020046.
8.  Pienkowski, M., Munguia, R., & Eggermont, J. J. (2011). Passive exposure of adult cats to bandlimited tone pip ensembles or noise leads to long-term response suppression in auditory cortex.Hearing Research, 277, 117-126.
9.     Munguia, R., Daniel, S. J., Sahmkow, S., & Funnell, W. R. J. (2010). Transtympanic Ringer’s lactate application in the prevention of cisplatinum-induced ototoxicity in a chinchilla animal model. Otolaryngology-Head and Neck Surgery,143(1), 134-140.
10.  Daniel, S. J., & Munguia R. (2008). Ototoxicity of topical ciprofloxacin/dexamethasone otic suspension in a chinchilla animal model. Otolaryngology-Head and Neck Surgery, 139(6), 840-845.
11.  Munguia, R., & Daniel, S. J. (2008). Ototopical antifungals and otomycosis: a review. International Journal of Pediatric Otorhinolaryngology, 72(4), 453-459.
12.  Daniel, S. J., Sahmkow, S., Munguia, R., & Akache, F. (2008). Effect of triethanolamine polypeptide oleate condensate 10% (Cerumenex®) on hearing in a chinchilla ear model. Laryngoscope, 118(3), 478-482.

Titles & Appointments

  • Adjunct Clinical Assistant Professor of Otolaryngology-Head & Neck Surgery
  • Education
    2012 FEL University of Calgary
    2010 PhD McGill University
    2006 MSC McGill University
    2003 MD Autonomous University of Mexico State
    1996 BSC Autonomous University of Mexico State
  • Research

    Academic/Research Interests

    - Auditory Cortex plasticity and to understand how the central nervous system adapts and responds to a diverse array of disorders; i.e. central Auditory Processing Disorders (cAPD), tinnitus, sensorineural hearing loss, and/or mild traumatic Brain Injury (mTBI).

    - How to identify and diagnose patients with normal audiograms but abnormal supra-threshold hearing; i.e. poor speech reception in noise, and possible contributing factors for this phenomenon. (“hidden hearing loss”)

  • Professional Organizations
    Association for Research in Otolaryngology (ARO)
  • Clinical Interests

    Otology, Neurotology, Tinnitus, Ototoxicity, & Auditory Cortex Plasticity





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