Final paper assignment

DUE Wednesday June 10 by 5:00 PM

DROP BOX FOR PAPER DRAFTS AND FINAL PAPER:

https://catalysttools.washington.edu/collectit/dropbox/lawerner/5889

Write a paper (about 15 double-spaced, 1-in margin, pages) answering the following questions. To answer Question 6, you must find one empirical article in the literature that discusses the performance of cochlear implant users.

A list of suggested papers is included below. If you find a paper that is not on this list that you would like to use, it must be approved by the instructor. To obtain approval, you must send me a pdf file containing the paper. Papers published before 2000 and papers that are not empirical (i.e., with data, not a review) will not be approved. Obviously, the paper must be closely related to the rest of the questions that you are to answer. Choose a paper as soon as you can, so that you have plenty of time to read and understand it.

You should be able to complete parts 1 and 2 of the question now. The answers to the remaining questions should get clearer as the quarter progresses.

I will accept and comment on drafts according to the following deadlines:

Question 1: May 14

Question 2: May 25

Question 3: May 29

Question 4: June 5

Questions 5 and 6: June 8

To receive writing credit in this class, credible drafts of all sections of the paper must be handed in.

Questions:

1. Overview transduction and the coding of sound in acoustic hearing. Compare and contrast these processes to those used in a cochlear implant.
2. What are the effects of frequency selectivity on acoustic hearing? In other words, how is a person's ability to hear sounds affected by frequency selectivity? How is this ability similar and how is it different for people who use cochlear implants?
3. What are the effects of intensity coding in the ear on acoustic hearing? In other words, how is a person's ability to hear sounds affected by the way that the ear codes intensity? How is this ability similar and how is it different for people who use cochlear implants?
4. What are the effects of temporal coding in the auditory system on acoustic hearing? In other words, how is a person's ability to hear sounds affected by the way that the system codes sound over time? How is this ability similar and how is it different for people who use cochlear implants?
5. Answer one of these questions:
   1. How is sound localized in acoustic hearing? In other words, what information do people use to localize sounds in space? How good are they at localizing sounds? How would a person with one cochlear implant localize sound? In other words, what information is available to the cochlear implant user for sound localization? A person with bilateral cochlear implants?
   2. How are sound sources segregated in acoustic hearing? In other words, what information do people use to to figure out which frequencies are coming from which sound source? How good are they at segregating sounds? How would a person with one cochlear implant segregate sounds? In other words, what information is available to the cochlear implant user for sound source segregation? A person with bilateral cochlear implants?
6. Review and discuss one empirical paper dealing with electric hearing: What was the scientific question addressed? What methods were used and how did these methods address the scientific question? What were the results? How did the researchers explain these results? How are the results of this study related to the points you discussed in Questions 1-5?

http://www.audiologynet.com/cochlear-implant.html has lots of links to informative sites.

Also see Zeng FG (2004). Trends in cochlear implants. Trends in Amplification 8(1), 1-34.

Some suggested articles for Question 6:

Baskent, D., & Shannon, R. V. (2004). Frequency-place compression and expansion in cochlear implant listeners. Journal of the Acoustical Society of America, 116(5), 3130-3140.

Carroll, J., & Zeng, F. G. (2007). Fundamental frequency discrimination and speech perception in noise in cochlear implant simulations.

Chang, Y. P., & Fu, Q. J. (2006). Effects of talker variability on vowel recognition in cochlear implants. Journal of Speech Language and Hearing Research, 49(6), 1331-1341.

Drennan, W. R., & Pfingst, B. E. (2006). Current-level discrimination in the context of interleaved, multichannel stimulation in cochlear implants: Effects of number of stimulated electrodes, pulse rate, and electrode separation. Jaro-Journal of the Association for Research in Otolaryngology, 7(3), 308-316.

Friesen, L. M., Shannon, R. V., & Cruz, R. J. (2005). Effects of stimulation rate on speech recognition with cochlear implants. Audiology and Neuro-Otology, 10(3), 169-184.

Fu, Q. J. (2005). Loudness growth in cochlear implants: effect of stimulation rate and electrode configuration. Hear. Res., 202(1-2), 55-62.

Fu, Q. J., & Shannon, R. V. (2002). Frequency mapping in cochlear implants. Ear and Hearing, 23(4), 339-348.

Geurts, L., & Wouters, J. (2004). Better place-coding of the fundamental frequency in cochlear implants. Journal of the Acoustical Society of America, 115(2), 844-852.

Han, D. M., Liu, B., Zhou, N., Chen, X. Q., Kong, Y., Liu, H. H., et al. (2009). Lexical Tone Perception with HiResolution and HiResolution 120 Sound-Processing Strategies in Pediatric Mandarin-Speaking Cochlear Implant Users. Ear and Hearing, 30(2), 169-177.

Kong, Y. Y., Deeks, J. M., Axon, P. R., & Carlyon, R. P. (2009). Limits of temporal pitch in cochlear implants. Journal of the Acoustical Society of America, 125(3), 1649-1657.

Kong, Y. Y., Stickney, G. S., & Zeng, F. G. (2005). Speech and melody recognition in binaurally combined acoustic and electric hearing. Journal of the Acoustical Society of America, 117(3), 1351-1361.

Laneau, J., Wouters, J., & Moonen, M. (2006). Improved music perception with explicit pitch coding in cochlear implants. Audiology and Neuro-Otology, 11(1), 38-52.

Litovsky, R., Parkinson, A., Arcaroli, J., & Sammeth, C. (2006). Simultaneous bilateral cochlear implantation in adults: A multicenter clinical study. Ear and Hearing, 27(6), 714-731.

Litovsky, R. Y., Johnstone, P. M., Godar, S., Agrawal, S., Parkinson, A., Peters, R., et al. (2006). Bilateral cochlear implants in children: Localization acuity measured with minimum audible angle. Ear and Hearing, 27(1), 43-59.

Long, C. J., Carlyon, R. P., Litovsky, R. Y., & Downs, D. H. (2006). Binaural unmasking with bilateral cochlear implants. Jaro-Journal of the Association for Research in Otolaryngology, 7(4), 352-360.

Nie, K., Barco, A., & Zeng, F. G. (2006). Spectral and temporal cues in cochlear implant speech perception. Ear and Hearing, 27(2), 208-217.

Shannon, R. V., Fu, Q. J., & Galvin, J. (2004). The number of spectral channels required for speech recognition depends on the difficulty of the listening situation. Acta Oto-Laryngologica, 124, 50-54.

Singh, S., Kong, Y. Y., & Zeng, F. G. (2009). Cochlear Implant Melody Recognition as a Function of Melody Frequency Range, Harmonicity, and Number of Electrodes. Ear and Hearing, 30(2), 160-168.

Vongphoe, M., & Zeng, F. G. (2005). Speaker recognition with temporal cues in acoustic and electric hearing. Journal of the Acoustical Society of America, 118(2), 1055-1061.

Zeng, F. G. (2002). Temporal pitch in electric hearing. Hearing Research, 174(1-2), 101-106.

Zeng, F. G., Chen, H. B., & Han, S. L. (2005). Temporal masking in electric hearing. Jaro-Journal of the Association for Research in Otolaryngology, 6(4), 390-400.

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