Audiometric profiles in children with speech sound disorder: Subclinical hearing loss as a potential factor
| Autor: | Cecilia Nakeva von Mentzer |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Linguistics and Language
medicine.medical_specialty genetic structures Middle ear function Hearing loss Otoacoustic Emissions Spontaneous Audiology Speech Sound Disorder Language and Linguistics Speech and Hearing Hearing otorhinolaryngologic diseases medicine Humans Speech Inner ear Child Hearing Loss Subclinical infection medicine.diagnostic_test Auditory Threshold Tympanometry medicine.disease medicine.anatomical_structure Child Preschool Speech sound disorder sense organs medicine.symptom Psychology Sensitivity (electronics) |
| Zdroj: | Clinical Linguistics & Phonetics. 35:847-873 |
| ISSN: | 1464-5076 0269-9206 |
| Popis: | In the present study, hearing sensitivity in children with speech sound disorder (SSD) is scrutinized. Middle ear function (wideband tympanometry and acoustic stapedial reflexes, ASR) and inner ear function (audiometric thresholds in the conventional1-8 kHz and extended10-16 kHz high frequency (EHF) range, and distortion product otoacoustic emissions (DPOAEs2-10 kHz) were investigated. Hearing results were analyzed in relation to speech discrimination of phonemic contrasts (quiet and in noise conditions) and reproduction. Thirty-two children with SSD and 41 children with typical development (TD) ages 4–5 years participated. Children with SSD exhibited significantly less sensitive hearing compared to children with TD. This was demonstrated as more absent contralateral ASR (right ear SSD 43.7%; TD 22.0%), a higher prevalence of minimal hearing loss (MHL, > 15 dB HL at one or more frequencies or ears1-8 kHz and PTA ≤ 20 dB HL, SSD 53.1%; TD 24.3%) and EHF hearing impairment (EHF HI, > 20 dB HL at one or more frequencies or ears10-16 kHz, SSD 31.3%; TD 24.3%). At 2 kHz bilaterally, children with SSD showed significantly higher hearing thresholds than children with TD (mean difference, left ear 3.4 dB: right ear 4.3 dB), together with a significantly lower SNR in DPOAEs at 2.2 kHz (left ear 5.1 dB mean difference between groups). In all children, audiometric thresholds at the key-frequencies for speech, 2 and 4 kHz and DPOAEs within similar spectral regions, predicted 7–12% of the variance in phonemic discrimination and reproduction. Overall, these results suggest that hearing should be more fully investigated in children with SSD. |
| Databáze: | OpenAIRE |
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