Deafness as sensory deprivation

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  • Kaga Kimitaka
    National Institute of Sensory Organs, National Tokyo Medical Center International University of Health and Welfare Clinic, Center for Speech and Hearing Disorders

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Other Title
  • Sensory deprivationとしての聴覚障害
  • 特別講演 Sensory deprivationとしての聴覚障害 : 人工内耳からみた聴覚の可塑性
  • トクベツ コウエン Sensory deprivation ト シテ ノ チョウカク ショウガイ : ジンコウ ナイジ カラ ミタ チョウカク ノ カソセイ
  • ──人工内耳からみた聴覚の可塑性──
  • ──Cochlear implant and brain plasticity──

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Abstract

Cochlear implants introduced during the 1990’s improved hearing for children experiencing sensory deprivation from congenital deafness, and for adults with acquired deafness.　Children with congenital deafness undergoing this procedure has becomes younger （<12 months）, although most children have it before 12y, with 5-6y the norm.　Postoperative speech and hearing is acquired very well and most children go into mainstream education.　Outcomes for cochlear implantation in adults with acquired deafness are also very good for reacquiring hearing.　Mid-1990’s data shows most patients under 70y undergo the procedure for implantation in the middle ear, although there are positive effects for patients 80-90y.　This is especially beneficial for patients additionally burdened with sight deprivation.

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