Journal article
Relationship between Peripheral and Psychophysical Measures of Amplitude Modulation Detection in Cochlear Implant Users
Ear and hearing, Vol.38(5), pp.e268-e284
2017
DOI: 10.1097/AUD.0000000000000417
PMCID: PMC5557710
PMID: 28207576
Abstract
Electrically evoked compound action potentials (ECAPs) and temporal modulation transfer functions (TMTFs) were measured in cochlear implant users using pulse trains amplitude modulated at 125, 250, 500, and 1000 Hz. ECAP amplitudes varied sinusoidally over the pulse trains. Both modulated ECAP amplitudes and psychophysical modulation detection thresholds increased with increasing modulation frequency. ECAP amplitude modulation was positively correlated with psychophysical measures for 125–500 Hz modulation frequencies (statistically significant for 250 and 500 Hz) but not for 1000 Hz. This suggested central limitations in processing stimuli modulated at higher rates despite robust ECAPs at all modulation rates.
Details
- Title: Subtitle
- Relationship between Peripheral and Psychophysical Measures of Amplitude Modulation Detection in Cochlear Implant Users
- Creators
- Viral D Tejani - Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, USAPaul J Abbas - Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, USACarolyn J Brown - Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
- Resource Type
- Journal article
- Publication Details
- Ear and hearing, Vol.38(5), pp.e268-e284
- DOI
- 10.1097/AUD.0000000000000417
- PMID
- 28207576
- PMCID
- PMC5557710
- NLM abbreviation
- Ear Hear
- ISSN
- 0196-0202
- eISSN
- 1538-4667
- Language
- English
- Date published
- 2017
- Academic Unit
- Communication Sciences and Disorders; Otolaryngology
- Record Identifier
- 9984002478602771
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