PMID: 11934521Apr 6, 2002Paper

Auditory perception in auditory neuropathy: clinical similarity with auditory verbal agnosia

Brain & Development
Makiko KagaM Inagaki

Abstract

The precise features of auditory perception in patients with auditory neuropathy have not been well described. In the present study, we examined auditory perception in a patient with auditory neuropathy. The patient was a right-handed 7-year-old boy. His chief complaint was delayed speech and suspected of verbal learning disability. He could talk, read and repeat rather fluently but could not understand fully what was asked. V-IQ, P-IQ and F-IQ of Wechsler Scale for Children III-R were 53, 118 and 81, respectively. Pure tone audiogram was completely normal. His speech discrimination ability was very poor. He could identify environmental sounds with visual matching. He could differentiate intensity difference but not time difference. This phenomenon was reported in patients with hemispheric symptoms. These clinical features are very similar to verbal auditory agnosia. ABR showed no response at 90dBnHL alternating clicks and tone bursts. Click evoked and distortion product otoacoustic emissions (OAE) were normal. Electrocochleogram was also normal. Motor and sensory nerve conduction velocity was completely normal. Pa of MLR and N1 of SVR were present. His diagnosis should be "pure type" of auditory neuropathy or auditory nerve di...Continue Reading

Citations

Dec 30, 2014·Brain & Development·Wakana FurushimaMasumi Inagaki
Dec 9, 2008·Journal of the Neurological Sciences·Min-Jeong KimZang-Hee Cho
Apr 2, 2014·Journal of Speech, Language, and Hearing Research : JSLHR·Linda W Norrix, David S Velenovsky
Sep 23, 2003·Current Opinion in Otolaryngology & Head and Neck Surgery·Brenda L Lonsbury-Martin, Glen K Martin

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