Psychoacoustics in EAS users
- Investigation of psychoacoustic electric-acoustic masking for combined EAS
- The effect of ES on acoustic hearing if electric and acoustic stimuli are presented simultaneously.
- The effect of AS on electric hearing if electric and acoustic stimuli are presented simultaneously.
Electrophysiological measurements in EAS users
- Electrophysiological measurements are used to examine electric-acoustic interaction in EAS users.
- Telemetry capabilities of the CI systems are used to derive intracochlear electrocochleography in EAS users.
- Cochlear microphonic (CM) and auditory nerve neurophonic (ANN) potentials, recorded in response to AS, ES, and in response to combined EAS are used to determine peripheral electric-acoustic interaction electrophysiologically.
Sound coding for EAS users
- Development and evaluation of sound coding for EAS users conveying low-frequency information of speech electrically to improve the speech perception for ES alone.
- Investigation of EAS fittings to optimize speech perception for EAS users.
Computational modeling for EAS
- Development of 3D models of the cochlea for ES and EAS
- Models of neural coding in auditory nerve fibers in response to ES, AS, and EAS
- Models of electrophysiological responses such as the electrically or acoustically evoked compound action potential to investigate the effect of electric-acoustic interaction on these measures
- Neural networks to emulate psychoacoustic experiments or speech perception of EAS users in different neural health conditions
Binaural fusion of EAS
- Investigation of central electic acoustic interaction through speech understanding performance and cortical EEG measurements;
- Investigataion of peripheral electric acoustic interaction through electric-acoustic pitch matching and measurment of auditory brainstem responses;
- Optimization of the CI fitting using the measurements of central and peripheral electric acoustic interaction.
Abbreviations: ES: electric stimulation AS: acoustic stimulation EAS: electric-acoustic stimulation
- A computational model of a single auditory nerve fiber for electric-acoustic stimulation D. Kipping, W. Nogueira (Under Review). Submitted to the Journal of the Association for Research in Otolaryngology (JARO) in 9/2021.
- B. Krüger, A. Büchner, and W. Nogueira, Phantom stimulation for cochlear implant users with residual low-frequency hearing, Ear Hear., 2021
- B. Krüger, A. Büchner, T. Lenarz, and W. Nogueira, Electric-acoustic interaction measurements in cochlear-implant users with ipsilateral residual hearing using electrocochleography, J. Acoust. Soc. Am., vol. 147, p. 350, 2020
- B. Krüger, A. Büchner, T. Lenarz, and W. Nogueira, Amplitude growth of intracochlear electrocochleography in cochlear implant users with residual hearing, J. Acoust. Soc. Am., vol. 147, no. 2, pp. 1147–1162, 2020
- D. Kipping, B. Krüger, W. Nogueira (2020), The role of electroneural versus electrophonic stimulation on psychoacoustic electric-acoustic masking in cochlear implant users with residual hearing. Hearing Research 395, 108036.
- W. Nogueira, B. Krüger, A. Büchner, E. Lopez-Poveda (2018),Contralateral suppression of human hearing sensitivity in single-sided deaf cochlear implant users.. Hearing Research 2019 Mar 1;373:121-129. doi: 10.1016/j.heares.2018.06.001. Epub 2018 Jun 15.
- M. Imsiecke, B. Krüger, A. Büchner, T. Lenarz, W. Nogueira (2018), Electric-acoustic forward masking in cochlear implant users with ipsilateral residual hearing.. Hearing Research, Hear Res. 2018 Jul;364:25-37. doi: 10.1016/j.heares.2018.04.003. Epub 2018 Apr 9.
- B. Krüger, A. Büchner, W. Nogueira (2017), Simultaneous masking between electric and acoustic stimulation in cochlear implant users with residual low-frequency hearing.. Hearing Research, https://doi.org/10.1016/j.heares.2017.06.014.
|Head of Research Group:
||Prof. Dr.-Ing. Waldo Nogueira|
||DHZ-Deutsches HörZentrum Hannover
|Phone:||+49 (0)511 532 8025|
|Fax:||+49 (0)511 532 6833|