dc.contributor.author |
He, Shuman |
|
dc.contributor.author |
McFayden, Tyler C |
|
dc.contributor.author |
Teagle, Holly FB |
|
dc.contributor.author |
Ewend, Matthew |
|
dc.contributor.author |
Henderson, Lillian |
|
dc.contributor.author |
Buchman, Craig A |
|
dc.coverage.spatial |
United States |
|
dc.date.accessioned |
2023-10-05T21:06:43Z |
|
dc.date.available |
2023-10-05T21:06:43Z |
|
dc.date.issued |
2016-11 |
|
dc.identifier.citation |
(2016). Ear and Hearing, 37(6), 634-649. |
|
dc.identifier.issn |
0196-0202 |
|
dc.identifier.uri |
https://hdl.handle.net/2292/66156 |
|
dc.description.abstract |
Objective:
This study aimed to (1) characterize morphological characteristics of the electrically evoked cortical auditory event-related potentials (eERPs) and explore the potential association between onset eERP morphology and auditory versus nonauditory stimulation; (2) assess test–retest reliability of onset eERPs; (3) investigate effects of stimulation level on onset eERPs; and (4) explore the feasibility of using the onset eERP to estimate the lowest stimulation level that can be detected for individual stimulating electrodes in patients with auditory brainstem implants (ABIs).
Design:
Study participants included 5 children (S1 to S5) and 2 adults (S6 to S7) with unilateral Cochlear Nucleus 24M ABIs. Pediatric ABI recipients ranged in age from 2.6 to 10.2 years (mean: 5.2 years) at the time of testing. S6 and S7 were 21.2 and 24.6 years of age at the time of testing, respectively. S6 and S7 were diagnosed with neurofibromatosis II (NF2) and implanted with an ABI after a surgical removal of the tumors. All pediatric subjects received ABIs after being diagnosed with cochlear nerve deficiency. The lowest stimulation level that could be detected (behavioral T level) and the estimated maximum comfortable level (C level) was measured for individual electrodes using clinical procedures. For electrophysiological measures, the stimulus was a 100-msec biphasic pulse train that was delivered to individual electrodes in a monopolar-coupled stimulation mode at stimulation levels ranging from subthreshold to C levels. Electrophysiological recordings of the onset eERP were obtained in all subjects. For studies evaluating the test–retest reliability of the onset eERP, responses were measured using the same set of parameters in two test sessions. The time interval between test sessions ranged from 2 to 6 months. The lowest stimulation level that could evoke the onset eERP was defined as the objective T level.
Results:
Onset eERPs were recorded in all subjects tested in this study. Inter- and intrasubject variations in morphological characteristics of onset eERPs were observed. Onset eERPs with complex waveforms were recorded for electrodes that evoked nonauditory sensations, based on feedback from subjects, as well as for electrodes without any indications of nonauditory stimulations. Onset eERPs in patients with ABIs demonstrated good test–retest reliability. Increasing stimulation levels resulted in increased eERP amplitudes but showed inconsistent effects on response latencies in patients with ABIs. Objective and behavioral T levels were correlated.
Conclusions:
eERPs could be recorded in both non-NF2 and NF2 patients with ABIs. eERPs in both ABI patient groups show inter- and intrasubject variations in morphological characteristics. However, onset eERPs measured within the same subject in this study tended to be stable across study sessions. The onset eERP can potentially be used to estimate behavioral T levels in patients with ABIs. Further studies with more adult ABI recipients are warranted to investigate whether the onset eERP can be used to identify electrodes with nonauditory stimulations. |
|
dc.format.medium |
Print |
|
dc.language |
eng |
|
dc.publisher |
Wolters Kluwer |
|
dc.relation.ispartofseries |
Ear and hearing |
|
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
|
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
|
dc.subject |
Cochlear Nerve |
|
dc.subject |
Humans |
|
dc.subject |
Neuroma, Acoustic |
|
dc.subject |
Neurofibromatosis 2 |
|
dc.subject |
Hearing Loss, Central |
|
dc.subject |
Vestibulocochlear Nerve Diseases |
|
dc.subject |
Auditory Brain Stem Implantation |
|
dc.subject |
Reproducibility of Results |
|
dc.subject |
Auditory Brain Stem Implants |
|
dc.subject |
Evoked Potentials, Auditory |
|
dc.subject |
Child |
|
dc.subject |
Child, Preschool |
|
dc.subject |
Female |
|
dc.subject |
Male |
|
dc.subject |
Young Adult |
|
dc.subject |
4201 Allied Health and Rehabilitation Science |
|
dc.subject |
32 Biomedical and Clinical Sciences |
|
dc.subject |
3202 Clinical Sciences |
|
dc.subject |
42 Health Sciences |
|
dc.subject |
Neurosciences |
|
dc.subject |
Pediatric |
|
dc.subject |
Clinical Research |
|
dc.subject |
Science & Technology |
|
dc.subject |
Life Sciences & Biomedicine |
|
dc.subject |
Audiology & Speech-Language Pathology |
|
dc.subject |
Otorhinolaryngology |
|
dc.subject |
Auditory brainstem implant |
|
dc.subject |
Auditory detection threshold |
|
dc.subject |
Electrically evoked cortical auditory event-related potentials |
|
dc.subject |
NEUROPATHY SPECTRUM DISORDER |
|
dc.subject |
INPUT DYNAMIC-RANGE |
|
dc.subject |
COCHLEAR NERVE APLASIA |
|
dc.subject |
SPEECH-PERCEPTION |
|
dc.subject |
INTENSITY DEPENDENCE |
|
dc.subject |
CHANGE COMPLEX |
|
dc.subject |
CHILDREN |
|
dc.subject |
POTENTIALS |
|
dc.subject |
NUCLEUS |
|
dc.subject |
HEARING |
|
dc.subject |
1109 Neurosciences |
|
dc.subject |
Clinical |
|
dc.subject |
Clinical Medicine and Science |
|
dc.subject |
1103 Clinical Sciences |
|
dc.subject |
3209 Neurosciences |
|
dc.title |
Electrically Evoked Auditory Event-Related Responses in Patients with Auditory Brainstem Implants: Morphological Characteristics, Test-Retest Reliability, Effects of Stimulation Level, and Association with Auditory Detection |
|
dc.type |
Journal Article |
|
dc.identifier.doi |
10.1097/aud.0000000000000342 |
|
pubs.issue |
6 |
|
pubs.begin-page |
634 |
|
pubs.volume |
37 |
|
dc.date.updated |
2023-09-06T23:28:52Z |
|
dc.rights.holder |
Copyright: Wolters Kluwer Health, Inc. |
en |
dc.identifier.pmid |
27579988 (pubmed) |
|
pubs.author-url |
https://www.ncbi.nlm.nih.gov/pubmed/27579988 |
|
pubs.end-page |
649 |
|
pubs.publication-status |
Published |
|
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RetrictedAccess |
en |
pubs.subtype |
research-article |
|
pubs.subtype |
Journal Article |
|
pubs.elements-id |
743896 |
|
pubs.org-id |
Medical and Health Sciences |
|
pubs.org-id |
Population Health |
|
pubs.org-id |
Audiology |
|
dc.identifier.eissn |
1538-4667 |
|
pubs.record-created-at-source-date |
2023-09-07 |
|