Arizona State University

College of Liberal Arts and Sciences

Cochlear Implant Laboratory, ASU

Home > Publications

Home

Personnel

Research

Research

Resources

Participate in Research

Contact Information

> Cochlear Implants (1988 - Present)

> Evoked Potentials (1974 - Present)

> Reaserch Involving Hearing-Impaired Listeners (1981 - 1988)

 

Cochlear Implants (1988 - Present)

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

 

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 .

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

2003

Dorman, M. F., & Ketten, D. (2003). Adaptation by a cochlear-implant patient to upward shifts in the frequency representation of speech. Ear and Hearing, 24, 457-460.

Loizou, P., Mani, A., & Dorman, M. F. (2003). Dichotic speech recognition in noise using reduced spectral cues. Journal of the Acoustical Society of America , 114 (1), 475-483.

Qian, H., Loizou, P., & Dorman, M. (2003). A phone-assistive device based on Bluetooth technology for cochlear implant users. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 11(3), 282-288.

 

2004

Dorman, M. F., & Dahlstrom, L. (2004). Speech understanding in cochlear-implant patients with different left- and right-ear electrode arrays. Ear and Hearing, 25(2), 191-194.

Spahr, A., & Dorman M. (2004). Performance of patients fit with Advanced Bionics CII and Nucleus 3G cochlear implant devices. Archives of Otolaryngology – Head and Neck Surgery, 130(5), 624-628.

Dorman, M. F., & Wilson, B. (2004). The design and function of cochlear implants. American Scientist, 92 (Sept-Oct), 436-445.

 

2005

Spahr, A., & Dorman, M. (2005). Effects of Minimum Stimulation Settings for the Med El Tempo+ Speech Processor on Speech Understanding. Ear & Hearing, 26(4) (Supplement), 2S-6S.

Dorman, M., Spahr, A., Loizou, P., Dana, C., & Schmidt, J. (2005), Acoustic Simulations of Combined Electric and Acoustic Hearing (EAS). Ear and Hearing.

Sharma, A., Dorman, M. and Kral, A.  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. 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.

 

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.

 

2007

Gifford, R., Dorman, M., Spahr, A. and Bacon, S. (2007). Auditory Function and Speech Understanding in Listeners Who Qualify for EAS Surgery.  Ear and Hearing, 28 (2), 114S-118S.

Spahr, A., Dorman, M. and Loiselle, L. (2007). Performance of patients fit with different cochlear implant systems: Effects of input dynamic range. Ear and Hearing, 28 (2), 260-275.

Wilson, B. and Dorman, M. (2007). The surprising performance of present-day cochlear implants. IEEE Transactions on Biomedical Engineering, 54 (6), 969-972.

Dorman, M., Spahr, A., Gifford, R.,  Loiselle, L., McKarns, S., Holden, T., Skinner, M. and Finley, C.  (2007). An electric frequency-to-place map for a cochlear implant patient with hearing in the non-implanted ear. Journal of the Association for Research in Otolaryngology, 8, 234-240.

Dorman, M., Sharma, A., Gilley, P., Martin, K. and Roland, P. (2007). Central Auditory Development: Evidence from CAEP Measurements in Children Fit with Cochlear Implants. Journal of Communication Disorders, 40(4), 284-298.

Gifford, R., Dorman, M., McKarns, S. and Spahr, A. (2007). Combined electric and contralateral acoustic hearing:  word and sentence intelligibility with bimodal hearing. Journal of Speech, Language and Hearing Research, 50, 835-843.

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.

Gifford, R., Dorman, M., McKarns, S. and Spahr, A. (2007) The effect of digital frequency compression (DFC) on speech recognition in candidates for combined electric and acoustic stimulation (EAS). Journal of Speech, Language and Hearing Research, 50, 1194-1202.

 

2008

Dorman, M., Gifford, R., Spahr, A. and McKarns, S. (2008). The benefits of combining acoustic and electric stimulation for the recognition of speech, voice and melodies. Audiology and Neurotology, 13, 105-112. 

 

In press:

Gilley, P., Sharma, A. and Dorman, M. Cortical organization and deprivation-induced reorganization in deaf children with cochlear implants.  International Journal of Audiology.

Wilson, B. and Dorman, M. Interfacing sensors with the nervous system: Lessons from the development and success of the cochlear implant. IEEE Sensors Journal.

BACK TO THE TOP OF THE PAGE

 

Evoked Potentials (1974 - Present)

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

Research Involving Hearing-Impaired Listeners (1981 - 1988)

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

 

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.

 

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.

 

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.

BACK TO THE TOP OF THE PAGE

    

Cochlear Implant Laboratory
Department of Speech and Hearing Science
Arizona State University
PO Box 870102
Tempe, AZ 85287-0102

Phone: 1-480-965-3345
Fax: 1-480-965-8516

 

Copyright and Trademark Statement | Accessibility | Privacy | Contact