In addition to laboratory-based research experiments, the Auditory Science Laboratory is involved in many translational research areas related to hearing and deafness. This is part of our “bench to bedside” research philosophy. Our clinical research topics are outlined below and include studies related to cochlear implantation in children, measurement of voice production, and studies related to environmental noise issues. Click on the .pdf file to download the publications listed.


HARRISON RV, GORDON KA, MOUNT RJ (2005). Is there a critical period for cochlear implantation in congenitally deaf children? Analyses of hearing and speech perception performance after implantation. Dev Psychobiol46:252-261.

GORDON KA, PAPSIN BC, HARRISON RV. (2005) Effects of cochlear implant use on the electrically evoked middle latency response in children. Hear Res 204:78-89.

PROPST EJ, STOCKLEY TL, GORDON KA, HARRISON RV, PAPSIN BC.(2006) Ethnicity and mutations in GJB2 (connexin 26) and GJB6 (connexin 30) in a multi-cultural Canadian paediatric Cochlear Implant Program. Int J Pediatr Otorhinolaryngol. Mar;70(3):435-44.

PROPST EJ, PAPSIN BC, STOCKLEY TL, HARRISON RV, GORDON KA.(2006) Auditory responses in cochlear implant users with and without GJB2 deafness. Laryngoscope. Feb;116(2):317-27.

GORDON KA, PAPSIN BC, HARRISON RV. (2006) An evoked potential study of the developmental time course of the auditory nerve and brainstem in children using cochlear implants. Audiol Neurotol. 11(1):7-23.

GORDON KA, PAPSIN BC, HARRISON RV. (2007) Auditory brainstem activity and development evoked by apical versus basal cochlear implant electrode stimulation in children. Clin Neurophysiol. 118(8):1671-84.

DAVIDS T, VALERO J, PAPSIN BC, HARRISON RV, GORDON KA. (2008) Effects of stimulus manipulation on electrophysiological responses of pediatric cochlear implant users. Part II: rate effects.Hear Res. Oct;244(1-2):15-24.

DAVIDS T, VALERO J, PAPSIN BC, HARRISON RV, GORDON KA (2008) Effect of increasing duration of stimulation on the electrically evoked auditory brainstem and middle latency responses in pediatric cochlear implant users. Journal of Otolaryngology-Head & Neck Surgery. 37: 559-564.

SCHRAMM DR, HARRISON RV. (2010) Performance after Cochlear Implantation in Children with Auditory Neuropathy  Coch. Impl. Int. 11 207-212.

HARRISON RV, GORDON KA, NEGANDHI J, PAPSIN B, JAMES AL.  (2015) Auditory neuropathy Spectrum Disorder and Cochlear Implantation. International Journal of Pediatric Otolaryngology. DOI: 10.1016/j.ijporl.2015.10.006

Schematic of cochlea with an electrode


JAMES AL, HARRISON RV, PIENKOWSKI M, DAJANI H, AND MOUNT RJ. (2005) Dynamics of contralateral acoustic suppression of DPOAEs measured in real time in chinchilla and human subjects. International Audiology44:118-129

PAPSIN E, HARRISON AL, CARRARO M, HARRISON RV (2014) Contralateral Ear Occlusion for Improving the Reliability of Otoacoustic Emission Screening Tests. Int J Otolaryngol. 2014:248187.

KONOMI U, HARRISON RV, KANOTRA S, JAMES A. (2014) Age related changes to the dynamics of contralateral DPOAE suppression human subjects. J Otolaryngol Head Neck Surg. Jun 16;43:15.

WOLTER NE, HARRISON RV, JAMES AL. (2014). Separating the contributions of olivocochlear and middle ear muscle reflexes in modulation of distortion product otoacoustic emission levels. Audiol Neurootol. 19(1):41-8.

HARRISON RV, KONOMI U, KANOTRA S, JAMES A. (2013) Postnatal maturation of contralateral DPOAE suppression in a precocious animal model (chinchilla) of the human neonate. Acta Otolaryngol. 133:383-9.

Image showing how otoacoustic emmisions are produced.


CAMPISI P, LOW A, PAPSIN BC, MOUNT R, COHEN-KEREM R, HARRISON R. (2005) Acoustic analysis of the voice in pediatric cochlear implant recipients: a longitudinal study. Laryngoscope 115:1046-1050

PROPST EJ, BLASER S, GORDON KA, HARRISON RV, PAPSIN BC.(2005) Temporal bone findings on computed tomography imaging in branchio-oto-renal syndrome. Laryngoscope. 2005 Oct;115(10):1855-62.

CAMPISI P, LOW A, PAPSIN BC, MOUNT RJ, HARRISON RV. (2006) Multi-dimensional voice program analysis in profoundly deaf children: quantifying frequency and amplitude control. Perceptual and Motor Skills, 103: 40-50.

HOLLER T, ALLEGRO J, CHADHA NK, HAWKES M, HARRISON RV, FORTE V, CAMPISI P.(2009) Voice outcomes following repeated surgical resection of laryngeal papillomata in children. Otolaryngol Head Neck Surg.141(4):522-6.

ALLEGRO J, PAPSIN BC, HARRISON RV, CAMPISI P (2010) Acoustic Analysis of Voice in Pediatric Cochlear Implant Recipients with Post-Meningitic Hearing Loss. Coch Impl Internat.11(2) 100-116.

HOLLER T, CAMPISI P, ALLEGRO J, CHADHA NK, HARRISON RV, PAPSIN B, GORDON K. (2010) Abnormal voicing in children using cochlear implants. Arch Otolaryngol Head Neck Surg. 136(1):17-21

image showing voice production measures


HARRISON RV. (2008) Noise-induced hearing loss in children: a ‘less than silent’ environmental danger. Paediatr Child Health 2008; 13 (5): 377-382.

HARRISON RV. (2015) On the biological plausibility of wind turbine syndrome. Int J Environ Health Res. 2015;25(5):463-8. doi: 10.1080/09603123.2014.963034.

  • L. GUIDOTTI · H. W. DAVIES · Y. GAGNON · C. GIGUÈRE · S. GRACE · R.V. HARRISON · B.HOWE · D. A. JOHNSON · K. PERSSON WAYE · J. D. ROBERTS · (2015) Understanding the Evidence: Wind Turbine Noise The Expert Panel on Wind Turbine Noise Human Health. Council of Canadian Academies. ISBN 978-1-926522-07-4
Image of a windmill


PROPST EJ, BLASER S, GORDON KA, HARRISON RV, PAPSIN BC.(2005) Temporal bone findings on computed tomography imaging in branchio-oto-renal syndrome. Laryngoscope. Oct;115(10):1855-62.

PROPST EJ, BLASER S, STOCKLEY TL, HARRISON RV, GORDON KA, PAPSIN BC. (2006) Temporal bone imaging in GJB2 deafness. Laryngoscope. 116(12):2178-86.

PROPST EJ, NGAN BY, MOUNT RJ, MARTIN-MUNOZ D, BLASER S, HARRISON RV, CUSHING SL, PAPSIN BC. (2013) Ossicular fusion and cholesteatoma in auriculo-condylar syndrome: In vivo evidence of arrest of embryogenesis. Laryngoscope. 2013 123: 528-32.

KUS LH, NEGANDHI J, SKLAR MH, ESKANDER A, ESTRADA M, HARRISON RV, CAMPISI P, FORTE V, PROPST EJ. (2013) Corrosion casting of the subglottis following endotracheal tube intubation injury: a pilot study in Yorkshire piglets. Journal of Otolaryngology – Head & Neck Surgery 42:52  doi:10.1186/1916-0216-42-52

Otolaryngology - Head and Neck Surgery sign