No evidence for enhanced processing of speech that is low-pass filtered near the edge frequency of cochlear dead regions in children
| Autor: | Alicja N. Malicka, Richard J. Baker, Thomas Baer, Brian C. J. Moore, Deanna Miluzzi, Kevin J. Munro, Wayne J. Wilson |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Male
Linguistics and Language medicine.medical_specialty Speech perception Audiology behavioral disciplines and activities Language and Linguistics 03 medical and health sciences Speech and Hearing Discrimination Psychological 0302 clinical medicine Hearing otorhinolaryngologic diseases Humans Medicine Hearing Loss 030223 otorhinolaryngology Cochlea Neuronal Plasticity business.industry Speech Intelligibility Age Factors Inner hair cells Persons With Hearing Impairments Acoustic Stimulation Case-Control Studies Speech Perception Female sense organs Audiometry Speech business 030217 neurology & neurosurgery |
| Zdroj: | Malicka, A, Wilson, W, Baer, T, Munro, K, Baker, R, Miluzzi, D & Moore, B 2018, ' No evidence for enhanced processing of speech that is low-pass filtered near the edge frequency of cochlear dead regions in children. ', International Journal of Audiology . https://doi.org/10.1080/14992027.2018.1460496 |
| DOI: | 10.1080/14992027.2018.1460496 |
| Popis: | Objectives: Cochlear dead regions (DRs) are regions in the cochlea where the inner hair cells and/or neurons are not functioning. Adults with extensive high-frequency DRs have enhanced abilities in processing sounds with frequencies just below the edge frequency, fedge, of the DR. It was assessed whether the same is true for children.Design: Performance was compared for children aged 8 to 13 years with: DRs (group DR), hearing impairment but without DRs (group NODR), and normal hearing (group NH). Seven ears in each group were tested. Each ear in the DR group was matched in age and low-frequency hearing with an ear in the NODR group, and in age with an ear in the NH group, giving seven “triplets”. Within each triplet, the percent correct identification of vowel-consonant-vowel stimuli was measured using stimuli that were low-pass filtered at fedge and 0.67fedge, based on the ear with a DR. For the hearing-impaired ears, stimuli were given frequency-selective amplification as prescribed by DSL 4.1.Results: No significant differences in performance were found between groups for either low-pass cut-off frequency.Conclusion: Unlike adults, the children with DRs did not show enhanced discrimination of speech stimuli with frequencies below fedge. |
| Databáze: | OpenAIRE |
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