Margaret T. Dillon, AuD

Meg 2012

Associate Professor
Director, Cochlear Implant Clinical Research 


Cochlear implantation, hearing preservation, middle ear implantation, signal processing outcomes


  • B.A., University of North Carolina at Chapel Hill, Chapel Hill, NC, 2005
    Area: Psychology
  • Au.D., University of North Carolina at Chapel Hill, Chapel Hill, NC 2009
    Area: Audiology
  • Externship: UNC Hospitals, Chapel Hill, NC, 2008-2009
    Area: Adult Cochlear Implants

Professional Experience:

  • Research Associate Professor, University of North Carolina at Chapel Hill, 2017
  • Research Assistant Professor, University of North Carolina at Chapel Hill, 2011-2017
  • Cochlear Implant Research Audiologist, University of North Carolina at Chapel Hill, 2009
  • Audiology Extern, University of North Carolina Hospitals, 2008-2009
  • Graduate Assistant, University of North Carolina Hearing and Communication Center, 2007-2008
  • Audiology trainee, Durham VA Medical Center, 2006-2007

Recent Publications

  • Dillon MT, Buss E, Anderson ML, King ER, Deres EP, Buchman CA, Brown KB, Pillsbury HC (2017). Cochlear implantation in cases of unilateral hearing loss: initial localization abilities. Ear Hear, [accepted]
  • Dillon MT, Buss E, King ER, Deres EJ, Obarowski SN, Anderson ML, Adunka MC (2016). Comparison of two cochlear implant coding strategies on speech perception. Cochlear Implants International, 17(6):263-270.
  • Scott WC, Giardina CK, Pappa AK, Fontenot TE, Anderson ML, Dillon MT, Brown KB, Pillsbury HC, Adunka OF, Buchman CA, Fitzpatrick D (2016). The compound action potential in subjects receiving a cochlear implant. Otol Neurotol, 37(10):1654-1661.
  • Dillon MT, Buss E, Adunka OF, Buchman CA, Pillsbury HC (2015). Influence of test condition on speech perception with Electric-Acoustic Stimulation. AJA, 24(4):520-28
  • Dillon MT, Bucker AL, Adunka MC, King ER, Adunka OF, Buchman CA, Pillsbury HC (2015). Impact of electric stimulation on residual hearing. JAAA, 26(8):732-40.
  • Dillon MT, Adunka OF, Anderson ML, Adunka MC, King ER, Buchman CA, Pillsbury HC (2015). The influence of age at revision cochlear implantation on speech perception outcomes. JAMA OHNS, 141(3):219-24. Online Author Audio Interview:
  • McClellan JH, Formeister EJ, Merwin WH, Dillon MT, Calloway N, Iseli C, Buchman CA, Adunka OF, Fitzpatrick DC (2014). Round window electrocochleography and speech perception outcomes in adult cochlear implant patients: comparison with audiometric and biographical information. Otol Neurotol35(9):e245-52.
  • Dillon MT, Tubbs RS, Adunka MC, King ER, Hillman TA, Adunka OF, Chen DA, Buchman CA (2014). Round window stimulation for conductive and mixed hearing loss. Otol Neurotol, 35(9):1601-8.
  • Buchman CA, Dillon MT, King ER, Adunka MC, Adunka OF, Pillsbury HC (2014). Influence of Cochlear Implant Insertion Depth on Performance: A Prospective Randomized Trial. Otol Neurotol, 35(10):1773-9.
  • Dillon MT, Buss E, Pillsbury HC, Adunka OF, Buchman CA, Adunka MC (2014). Effects of hearing aid settings for Electric-Acoustic Stimulation. JAAA, 25(2):133-40. 
  • Adunka OF, Dillon MT, Adunka MC, King ER, Pillsbury HC, Buchman CA (2014). Cochleostomy versus round window insertions: Influence on functional outcomes in electric-acoustic stimulation of the auditory system. Otol Neurotol, 35(4):613-8.
  • Fitzpatrick, DF, Campbell A, Choudhury, B, Dillon M, Forgues M, Buchman C, Adunka O (2014). Round window electrocochleography just before cochlear implantation: Relationship to word recognition outcomes in adults. Otol Neurotol, 35(1):64-71.
  • Adunka OF, Dillon MT, Adunka MC, King ER, Pillsbury HC, Buchman CA (2013). Hearing preservation and speech perception outcomes with electric-acoustic stimulation after 12 months of listening experience. Laryngoscope, 123(10):2509-15.
  • Dillon MT, Buss E, Adunka MC, King ER, Pillsbury HC, Adunka OF, Buchman CA (2013). Long-term speech perception in elderly cochlear implant users. JAMA Otolaryngol Head Neck Surg, 139(3):279-283.
  • Choudhury B, Fitzpatrick DC, Buchman CA, Wei BP, Dillon MT, He S, Adunka OF (2012).  Intraoperative round window recordings to acoustic stimuli from cochlear implant patients. Otol Neurotol, 33(9):1507-15.