Monosyllable speech perception in pediatric cochlear implant users with congenital hearing loss

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  • Akamatsu Yusuke
    Department of Otolaryngology, Faculty of Medicine, The University of Tokyo
  • Hirota Eiko
    University of Tsukuba
  • Ogata Erika
    Department of Otolaryngology, Faculty of Medicine, The University of Tokyo
  • Kashio Akinori
    Department of Otolaryngology, Faculty of Medicine, The University of Tokyo
  • Sakata Aki
    Department of Otolaryngology, Faculty of Medicine, The University of Tokyo
  • Yamasoba Tatsuya
    Department of Otolaryngology, Faculty of Medicine, The University of Tokyo

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Other Title
  • 先天性重度聴覚障害人工内耳装用例の単音節聴取能の検討

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Abstract

<p>　We examined monosyllable speech perception in 165 pediatric patients with congenital severe hearing impairment with cochlear implants at elementary school entry. The effects of lip reading, percent correct scores for each syllable, and factors involved in performance were examined, and the following results were obtained.</p><p>　1) The average monosyllable speech perception score in the pediatric CI users was 60.7%. The average score improved by 5.1 points in the lip reading condition.</p><p>　2) The average percent correct scores for vowels were 87.1%. There was a significant correlation between the overall score and the score for vowels. However, there were cases in which the overall score was lower than 60%, even though the scores for vowels were over 90%.</p><p>　3) The percent correct scores were higher for voiceless sounds than for voiced sounds, and the scores for? frictional sounds were much better. The scores for semi-vowels were higher than those for vowels and other syllables. Differences were found in the scores for individual syllables with the same phonemes.</p><p>　4) Cases with inner ear malformations, cochlear nerve hypoplasia, developmental disorders, and older age at CI were often seen in the group with a score of one SD below the mean (n=26). An overlap of these conditions accounted for 89% of the cases.</p><p>　5) Excluding the above factors, the average score of the "standard cases" reached 75.7% in the auditory alone condition. The age at implantation and performance IQ exerted influence on the monosyllable speech perception ability.</p>

Journal

  • AUDIOLOGY JAPAN

    AUDIOLOGY JAPAN 64 (6), 555-564, 2021-12-28

    Japan Audiological Society

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