Ray Munguia-Vazquez

Ray Munguia-Vazquez, MD PhD

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.




Indiana University School of Medicine West Lafayette
715 Clinic Drive Suite 2030
West Lafayette, IN 47907


Translational Research

Titles & Appointments

  • Assistant Director Enrichment Opportunities, IU School of Medicine-West Lafayette
  • Scholarly Concentration Program Director, IU School of Medicine-West Lafayette