Publications
>Cochlear Implants (1988 - Present)
2019
Dorman, M.F., Natale, S.C., Zeitler, D.M., Baxter, L. & Noble, J.H. Looking for Mickey Mouse TM but finding a munchkin: The perceptual effects of frequency upshifts for single-sided deaf, cochlear implant patients. J. Speech Lang Hear Res. https://doi.org/10.1044/2019_JSLHR-H-18-0389
Zeitler, D.M. & Dorman, M.F. Cochlear implantation for single-sided deafness: A new treatment paradigm. J. Neurol Surg B Skull Base. DOI: 10.1055/s-0038-1677482
Kral, A., Dorman, M.F. & Wilson, B.S. Neuronal development of hearing and language: Cochlear implants and critical periods. Annu Rev Neurosci. https://doi.org/10.1146/annurev-neuro-080317-061513
Zeitler, D.M., Sladen, D.P., DeJong, M.D., Torres, J.H., Dorman, M.F. & Carlson, M.L. Cochlear implantation for single-sided deafness in children and adolescents. Int J Pediatr Otorhinolaryngol. https://doi.org/10.1016/j.ijporl.2018.12.037
2018
Dorman, M.F., Natale, S.C. & Agrawal, S. The value of unilateral CIs, CI-CROS and bilateral CIs with and without beamformer microphones, for speech understanding in a simulation of a restaurant environment. Audiol Neurootol. https://doi.org/10.1159/000493844
Dorman, M.F. & Natale, S.C. AutoAdaptive: A noise level-sensitive beamformer for MED EL cochlear implant patients. J Am Acad Audiol. https://doi.org/10.3766/jaaa.18030
Gifford, R.H., Loiselle, L. Natale, S.C., Sheffield, S.W., Sunderhaus, L.W., Dietrich, M. & Dorman, M.F. Speech understanding in noise for adults with cochlear implants: Effects of hearing configuration, source location certainty and head movement. J Speech Lang Hear Res. https://doi.org/10.1044/2018_JSLHR-H-16-0444
Dorman, M.F. Natale, S.C. & Loiselle, L. Speech understanding and sound source localization by cochlear implant listeners using a pinna-effect imitating microphone and an adaptive beamformer. J Am Acad Audiol. https://doi.org/10.3766/jaaa.16126
2017
Dorman, M.F. & Gifford R. H. Speech understanding in complex listening environments by listeners fit with cochlear implants. J. Speech Lang Hear Res. https://doi.org/10.1044/2017_JSLHR-H-17-0035
Dorman, M.F., Natale, S.C., Spahr, A. & Castioni, E. Speech understanding in noise by patients with cochlear implants using a monaural adaptive beamformer. J Speech Lang Hear Res. https://doi.org/10.1044/2017_JSLHR-H-16-0312
2016
Dorman, M.F., Liss, J., Wang, S., Berisha, V., Ludwig, C. & Natale, S.C. Experiments on auditory-visual perception of sentences by users of unilateral, bimodal and bilateral cochlear implants. J. Speech Lang Hear Res. https://doi.org/10.1044/2016_JSLHR-H-15-0312
Loiselle, L.H., Dorman, M.F., Yost, W.A., Cook, S.J. & Gifford R.H. Using ILD or ITD cues for sound source localization and speech understanding in a complex living environment by listeners with bilateral and with hearing preservation cochlear implants. J. Speech Lang Hear Res. https://doi.org/10.1044/2015_JSLHR-H-14-0355
Dorman, M.F., Loiselle, L.H., Cook, S.J., Yost, W.A. & Gifford, R.H. Sound source localization by normal-hearing listeners, hearing-impaired listeners and cochlear implant listeners. Audiol Neurootol. https://doi.org/10.1159/000444740
2015
Dorman, M.F. & Parking, J.L. The roles of the Utah Artificial Ear project in the development of the modern cochlear implant. Cochlear Implants Int. https://doi.org/10.1179/1467010015Z.000000000246
Dorman, M.F., Zeitler, D., Cook, S.J., Loiselle, L. Yost, W.A., Wanna, G.B. & Gifford, R. H. Interaural level difference cues determine sound source localization by single-sided deaf patients fit with a cochlear implant. Audiol Neurootol. https://doi.org/10.1159/000375394
Loiselle, L.H., Dorman, M.F., Yost, W.A. & Gifford, R.H. Sound source localization by hearing preservation patients with and without symmetrical low-frequency acoustic hearing. Audiol Neurootol. https://doi.org/10.1159/000367883
2014
2013
Yost, W., Loiselle, L., Dorman, M, Brown, C and Burns, J. (2013). Sound Source Localization of Filtered Noises by Listeners with Normal Hearing: A Statistical Analysis. Journal of the Acoustical Society of America. 133(5):2876-82. PMCID 3663857
2012
Sharma, A., Nash, A. and Dorman, M. (2012). Developpement cortical, plasticite et reorganisations cerebrales. Les Cahiers de lAudition, 25(2), 30-35.
Wilson, B. and Dorman, M. (2012). Better Hearing with Cochlear Implants: Studies at Research Triangle Institute. Plural, San Diego, CA.
Wilson, B. and Dorman, M. (2012). Signal processing strategies for cochlear implants. In M. Ruckenstein (Ed.), Cochlear Implants and Other Implantable Hearing Devices. Plural, San Diego, CA.
2011
Sharma, A. and Dorman, M. (2011). Central auditory system development, plasticity and re-organization after cochlear implantation: Evidence from evoked potential and brain imaging studies. In Springer Handbook of Auditory Research, Zeng, F-G. and Popper, A. (Eds.) Springer, N.Y.
Wilson, B. and Dorman M. (2011). Remediation of severe or total losses of hearing with cochlear implants. In S.P. Ahuja (Ed.) Usher Syndrome: Pathogenesis, Diagnosis and Therapy. Nova Science Publishers. Hauppauge, New York.
Dorman, M., Yost, W., Wilson, B. and Gifford, R. (2011). Speech perception and sound localization by adults with bilateral cochlear implants. Seminars in Hearing. 32 (1), 73-89.
Spahr, A., Saoji, A., Litvak, L. and Dorman, M. (2011). Spectral Cues for Understanding Speech in Quiet and in Noise. Cochlear Implants International, 12 (S1), S66-S69.
2010
2009
Spitzer, S., Liss, J., Spahr, A., Dorman, M. and Lansford, K. (2009). The use of fundamental frequency for lexical segmentation in listeners with cochlear implants. Journal of the Acoustical Society of America, 125 (6), EL 235. PMC2806437
Wilson, B.S. and Dorman, M.F. (2009). Stimulation for the return of hearing. In: Neuromodulation: A Comprehensive Handbook, edited by A.Rezai, E. Krames, and H. Peckham. Amsterdam: Elsevier, pp. 713 - 722.
Wilson, B. and Dorman, M. (2009). The design of cochlear implants. In Cochlear Implants, Principals and Practices. Niparko, J. (Ed). Lippincott, Philadelphia, pp. 95-136.
Sharma, A., Nash, A. and Dorman, M. (2009) Cortical development, plasticity and re-organization in children with cochlear implants. Journal of Communication Disorders, 42(4), 272-279
2008
Wilson, B. and Dorman, M. (2008) Interfacing sensors with the nervous system: Lessons from the development and success of the cochlear implant. IEEE Sensors Journal, 8(1), 131-147.
King K, Campbell J, Sharma A, Martin K, Dorman M, Langran J. (2008) Representation of VOT in cortical auditory evoked response of young children. Clinical Neurophysiology,119 (12), 2855-61.
2007
Wilson, B. and Dorman, M. (2007). The surprising performance of present-day cochlear implants. IEEE Transactions on Biomedical Engineering, 54 (6), 969-972.
Sharma, A., Gilley, P., Martin, K., Roland, P., Bauer, P. and Dorman, M. Simultaneous vs. sequential bilateral implantation in young children: Effects on central auditory development and plasticity. (2007). Audiological Medicine, 5.
2006
Dorman, M.F. and Spahr, A. Speech Perception by Adults, in Cochlear Implants (2nd edition), S. Waltzman and N. Cohen (Eds.). Thieme Medical Publishers.
Gilley, P., Sharma, A., Dorman, M. and Martin, K. Abnormalities in central auditory maturation in children with language-based learning problems. Clinical Neurophysiology, 117(9), 1949-1956
Sharma, A. and Dorman, M. Central auditory development in children with cochlear implants: Clinical implications. In Moller, A. (Ed.) Cochlear and Brainstem Implants, Adv. Otorhinolaryngol. Basel, Karger, 64, 66-88.
Gilley, P., Sharma, A., Dorman, M., Finley, C., Panch, A. and Martin, K. Minimization of cochlear implant stimulus artifact in cortical auditory evoked potentials. Clinical Neurophysiology, 117(8), 1772-1782.
Bauer P, Sharma A, Martin K and Dorman M. Central auditory system development in children with bilateral cochlear implants. Annals of Otology, Rhinology and Laryngology, 132, 1133-1136.
2005
Gilley, P., Sharma, A., Dorman, M. and Martin, K. Developmental changes in refractoriness of the cortical auditory evoked potential. Clinical Neurophysiology, 116, 648-657.
Sharma, A. and Dorman, M. The clinical use of P1 latency as a bio-marker for assessment of central auditory development in children with hearing impairment. Audiology Today, May/June, 18-19.
Sharma, A., Martin, K., Roland, P., Bauer, P., Sweeny, M., Gilley, P. and Dorman M. P1 latency as a bio-marker for central auditory development in children with hearing-impairment. Journal of the American Academy of Audiology, 16, 568-577.
2004
Dorman, M. F., & Wilson, B. (2004). The design and function of cochlear implants. American Scientist, 92 (Sept-Oct), 436-445.
2003
2002
Dorman, M.F., Loizou, P., Spahr, A., & Maloff, E. (2002). A comparison of the speech understanding provided by acoustic models of fixed-channel and channel-picking signal processors for cochlear implants. Journal of Speech, Language and Hearing Research, 44, 1-6.
Dorman, M. F., Loizou, P. C., Spahr, A. J., & Maloff, E. (2002). Factors that allow a high level of speech understanding by patients fit with cochlear implants. American Journal of Audiology, 11, 119-123.
Kasturi, K., Loizou, P., Dorman, M. F., & Spahr, T. (2002). The intelligibility of speech with ‘holes’ in the spectrum. Journal of the Acoustical Society of America , 112(3), 1102-1111.
2000
Dorman, M.F. (2000). Speech Perception by Adults, in Cochlear Implants, S. Waltzman and N. Cohen (Eds.). Thieme Medical Publishers, pp. 317-329.
Loizou, P., Dorman, M., & Fitzke, J. (2000). The Effect of Reduced Dynamic Range on Speech Understanding: Implications for Patients with Cochlear Implants. Ear and Hearing, 21(1), 25-31.
Loizou, P., Dorman, M., Poroy, O., & Spahr, A. (2000). Speech recognition by normal-hearing and cochlear implant listeners as a function of intensity resolution. Journal of Acoustical Society of America , 108(5), 2377-2388.
Loizou, P., Poroy, O., & Dorman, M. (2000). The effect of parametric variations of cochlear implant processors on speech understanding. Journal of Acoustical Society of America , 108(2), 790-802.
Dorman, M., Loizou, P. Fitzke, J., & Tu, Z. (2000). The recognition of monosyllabic words by cochlear implant patients and by normal-hearing subjects listening to words processed through cochlear implant signal processing strategies. Annals of Otology, Rhinology and Laryngology, 109 (12,2), 64-66.
Loizou, P., Dorman, M., Tu, Z., & Fitzke, J. (2000). The recognition of sentences in noise by normal-hearing listeners using simulations of SPEAK-type cochlear-implant signal-processors. Annals of Otology, Rhinology and Laryngology, 109 (12,2), 67-68.
Dorman, M., Loizou, P., Kemp, L., & Kirk, K. (2000). Word recognition by children listening to speech processed into a small number of channels: Data from normal-hearing children and children with cochlear implants. Ear and Hearing, 21 (6), 590-596.
1999
Loizou, P., Dorman, M., & Tu, Z. (1999). On the number of channels needed to understand speech. Journal of the Acoustical Society of America , 106 (4), 2097-2103.
1998
Loizou, P., Dorman, M., & Powell, V. (1998). The recognition of vowels produced by men, women, boys and girls by cochlear implant patients using a six-channel CIS processor. Journal of the Acoustical Society of America, 103(2), 1141-1149.
Dorman, M. F., & Loizou, P. (1998). The identification of consonants and vowels by cochlear-implant patients using a 6-channel CIS processor and by normal-hearing subjects using simulations of processors with 2-9 channels. Ear & Hearing, 19(2), 162-166.
Dorman, M., Loizou, P., & Fitzke, J. (1998). The identification of speech in noise by cochlear-implant patients and normal-hearing listeners using 6-channel signal processors. Ear and Hearing, 19(6), 481-484.
Dorman, M., Loizou, P., Fitzke, J., & Tu, Z. (1998). The recognition of sentences in noise by normal-hearing listeners using simulations of cochlear-implant signal processors with 6-20 channels. Journal of the Acoustical Society of America , 104 (6), 3583-3585.
Dorman, M. F. (1998). Speech Perception, in Cochlear Implants, A Handbook. B. Tucker (Ed.) McFarland and Company, pp. 5-28.
1997
Dorman, M. F., Loizou, P., & Rainey, D. (1997). Speech intelligibility as a function of the number of channels of stimulation for signal processors using sine-wave and noise-band outputs. Journal of the Acoustical Society of America, 102(4), 2403-2411.
Dorman, M. F., & Loizou, P. (1997). Changes in speech intelligibility as a function of time and signal processing strategy for an Ineraid patient fitted with continuous interleaved sampling processors. Ear and Hearing, 18, 147-155.
Dorman, M. F., Loizou, P., & Rainey, D. (1997). Simulating the effect of cochlear-implant electrode insertion depth on speech understanding. Journal of the Acoustical Society of America , 102(5), 2993-2996.
Dorman, M. F., & Loizou, P. (1997). Speech intelligibility as a function of the number of channels of stimulation for normal-hearing listeners and for patients with cochlear implants. American Journal of Otology, 18(6), 113-114.
Dorman, M.F., & Loizou, P. (1997). Mechanisms of vowel recognition for Ineraid patients fit with continuous interleaved sampling processors. Journal of the Acoustical Society of America, 102 (1), 581-587.
1996
Dorman, M., Smith, L., Smith, M., & Parkin, J. (1996). Frequency discrimination and speech recognition by patients who use the Ineraid and CIS cochlear-implant signal processors. Journal of the Acoustical Society of America , 99, 1174-1185.
Dorman, M., & Loizou, P. (1996). Improving consonant intelligibility for Ineraid patients fit with continuous interleaved sampling (CIS) processors by enhancing contrast among channel outputs. Ear and Hearing, 17 (4), 308-313.
1995
Dorman, M. (1995).Test of the use of amplitude envelope cues to consonant identify by patients who use the Ineraid cochlear implant. Annals of Otology, Rhinology, and Laryngology, Supplement, 166, 223-224.
1994
Dorman, M., Smith, L., Smith, M., & Parkin, J. (1994). The pitch of electrically presented sinusoids. Journal of the Acoustical Society of America , 95, 1677-79.
Dorman M., Smith, L., & Parkin, J. L. (1994). Mechanisms of formant frequency resolution with the Ineraid cochlear implant. In I. Hochmair-Desoyer and E. Hochmair, (Eds.) Advances in Cochlear Implants. Mantz: International Interscience Seminars, 302-305.
1993
Dorman, M., Smith,L., & Parkin, J. (1993). Loudness balance between acoustic and electric stimulation with a mulitchannel cochlear implant. Ear and Hearing, 14, 290-292.
Dorman, M. (1993). Speech recognition by adults. In R. Tyler (Ed.), Audiological foundations of cochlear implants. Singular Press: San Diego .
1992
Dorman, M., Smith L., Dandowski K., McCandless, G., & Parkin J. (1992). Long-term measures of electrode impedance and auditory thresholds for the Ineraid cochlear implant. Journal of Speech and Hearing Research, 35, 1126-1130.
Doman, M., Smith, M., Smith, L., & Parkin J. (1992). The coding of vowel identity by patients who use the Ineraid cochlear implant. Journal of the Acoustical Society of America , 92, 3428-3431.
1991
Dorman, M., Dove, H., Parkin, J., Zacharchuk, S., & Dankowski, K. (1991). Telephone use by patients fitted with the Ineraid cochlear implant. Ear and Hearing, 12, 368-369.
Dorman, M. F., Dankowski, K., McCandless, G., Parkin, J. L., & Smith, L. (1991). Vowel and consonant recognition with the aid of a multichannel cochlear implant. Quarterly Journal of Experimental Psychology, 43A, 585-601.
Dorman, M., Basham, K,, Mc Candless, G., & Dove, H. (1991). Speech understanding and music appreciation with the Ineraid cochlear implant. The Hearing Journal, June, 34-37.
1990
Dorman, M. F. Smith, L., McCandless, G., Dunnavant, G., Parkin, J. L., & Dankowski, K. (1990). Pitch scaling and speech understanding by patients who use the Ineraid cochlear implant. Ear and Hearing, 11, 310-315.
Dorman, M. F., Dankowski, K., McCandless, G., Parkin, J. L., & Smith, L. (1990). Longitudinal changes in speech recognition by patients who use the Ineraid cochlear implant. Ear and Hearing, 11, 455-459.
Dorman, M. F., Soli, S., Dankowski, K., Smith, L., McCandless, G., & Parkin J. L. (1990). Acoustic cues for consonant identification by patients who use the Ineraid cochlear implant. Journal of the Acoustical Society of America , 88, 2074-2079.
1989
Dorman, M. F., Dankowski, K., Smith, L., & McCandless, G. (1989). Identification of synthetic vowels by patients using the Symbion multichannel cochlear implant. Ear and Hearing, 10, 40 - 43.
Dorman, M. F., Hanneley, M. T., Dankowski, K., Smith, L., & McCandless, G. (1989). Word recognition by 50 patients fitted with the Symbion multichannel cochlear implant. Ear and Hearing, 10, 44 - 49.
Dorman, M. F., Dankowski, K., McCandless, G., & Smith, L. (1989). Consonant recognition as a function of the number of channels of stimulation by patients who use the Symbion cochlear implant. Ear and Hearing, 10, 288 - 291.
1988
Dorman, M. F., Hannley, M., McCandless, G., & Smith, L. (1988). Acoustic/phonetic categorization with the Symbion multichannel cochlear implant. Journal of the Acoustical Society of America , 84, 501-510.
McCandless, G., Dankowski, K., & Dorman, M. F. (1988). Results for patients fitted with a multichannel, monopolar, analogue cochlear implant. Hearing Instruments, 39, 28-30.
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>Evoked Potentials (1974 - Present)
In Press
Sharma, A., Martin, K., Roland, P., Bauer, P., Sweeny, M., Gilley, P., & Dorman, M. A new tool for assessment of central auditory development in hearing-impaired and cochlear-implanted children. Journal of the American Academy of Audiology.
2005
Sharma, A., Dorman, M., & Kral, A. (2005). The influence of a sensitive period of central auditory development in children with unilateral and bilateral cochlear implants. Hearing Research, 203, 134-143.
Gilley, P., Sharma, A., Dorman, M., & Martin, K. (2005). Developmental changes in refractoriness of the cortical auditory evoked potential. Clinical Neurophysiology, 116, 648-657.
Sharma, A., & Dorman, M. (2005). The clinical use of P1 latency as a bio-marker for assessment of central auditory development in children with hearing impairment. Audiology Today, May/June, 18-19.
2004
Sharma, A., Tobey, E., Dorman, M., Bharadwaj, S., Martin, K., Gilley, P., & Kunkei, F. (2004). Central auditory maturation and babbling development in infants with cochlear implants. Archives of Otolaryngology – Head and Neck Surgery, 130(5), 511-517.
2002
Sharma, A., Dorman, M., Spahr, A., & Todd, N. W. (2002). Early cochlear implantation allows for normal development of cortical auditory pathways. Annals of Otology, Rhinology and Laryngology , Vol 111, 5(2), 38-41.
Sharma, A., Dorman, M. F., & Spahr, A. (2002). Rapid development of cortical auditory evoked potentials after early cochlear implantation. NeuroReport, 13 (10), 1-4.
Sharma, A., Dorman, M. F., & Spahr, A. (2002). A sensitive period for the development of the central auditory system in children with cochlear implants. Ear and Hearing, 23(6), 532-539.
2000
Sharma, A., & Dorman, M. (2000). Neurophysiologic correlates of cross-language phonetic perception. Journal of the Acoustical Society of America, 107(5), 2697-2703.
Sharma, A., Marsh, C., & Dorman, M. (2000). Relationship between N1 evoked potential morphology and the perception of voicing. Journal of Acoustical Society of America, 108(6), 3030-3035.
1999
Sharma, A., & Dorman, M. F. (1999). Cortical evoked potential correlates of the phonetic perception of VOT. Journal of the Acoustical Society of America, 106, 2, 1078-1083.
1998
Sharma, A., & Dorman , M.F. (1998). Exploration of the perceptual magnet effect using the mismatch negativity auditory evoked potential. Journal of the Acoustical Society of America, 104 (1), 511-517.
1974
Dorman, M.F., & Hoffman, R. (1974). Short-term habituation of the auditory evoked response in infants. Journal of Speech and Hearing Research, 16, 637-642.
Dorman, M.F. (1974). Auditory evoked potential correlates of speech sound discrimination. Perception and Psychophysics, 15, 215-220.
>Research Involving Hearing-Impaired Listeners (1981 - 1988)
1988 :
Lindholm, J. M., Dorman, M. F., Taylor , B., & Hannley, M. (1988). Stimulus factors influencing the identification of voiced stop consonants by normal hearing and hearing-impaired listeners. Journal of the Acoustical Society of America , 83, 1608-1614.
1986
Dorman, M. F. (1986). Temporal resolution, frequency selectivity and the identification of speech by hearing-impaired listeners. The Hearing Journal, March, 24-26.
Leek, M. R., Dorman, M. F., & Summerfield, Q. (1986). The role of spectral contrast in the identification of vowels by normal hearing and hearing-impaired listeners. Journal of the Acoustical Society of America , 81, 148-154.
1985
Dorman, M. F., Marton, K., Hannley, M. T., & Lindholm, J. M. (1985). Phonetic identification by elderly normal and hearing-impaired listeners. Journal of the Acoustical Society of America , 77, 664-670.
Dorman, M. F., & Hannley, M. T. (1985). Identification of speech and speech-like signals by hearing-impaired listeners. In Speech Science, R. Danaloff (Ed.), College Hill; San Diego.
Dorman, M. F., Lindholm, J. M., & Hannley, M. T. (1985). The influence of the first formant in the recognition of voiced stop consonants by hearing-impaired listeners. Journal of Speech and Hearing Research, 28, 377-380.
1984
Johnson, D., Whaley, P., & Dorman, M.F. (1984). The processing of cues for stop consonant voicing by young hearing-impaired listeners. Journal of Speech and Hearing Research, 27, 112-118.
1983
Hannley, M.T., & Dorman, M.F. (1983). Susceptability to spread of masking in listeners with sensorineural hearing impairment. Journal of the Acoustical Society of America , 74, 40-51.
1981
Parady, S. Dorman, M.F., Whaley, P., & Raphael, L.J. (1981). Identification and discrimination of a synthesized voicing contrast by normal and sensorineural hearing-impaired children. Journal of the Acoustical Society of America , 69, 783-790.