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- 真崎 雅和
- 市立秋田総合病院耳鼻咽喉科
書誌事項
- タイトル別名
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- Computer Analysis of Electro-Nystagmography Recordings in Normal Subjects
- ENG ケンサ ニ オケル コンピューター ブンセキ ケンジョウシャ オ タイ
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抄録
A quantitative analysis of eye movement with optokinetic and caloric nystagmus was undertaken in normal subjects using a digital computer. Fifteen parameters were established to differentiate nystagmus from artifacts. Eight of the parameters were used to diagnose the quick phase and the other 7 parameters were used to diagnose the slow phase. On OKN (optokinetic nystagmus), the velocity gain was calculated. The adaptation limits of slow phase velocity were a maximum slow phase velocity, while the velocity gain was over 0.8. In 20 normal subjects, the average slow phase velocity was 90°/sec (S. D.15.5). In the caloric test, the average maximum slow phase velocity was 32°/sec (S. D.11) and the average with the visual suppression test was 70% (S. D.10.5) in 31normal ears. In this analysis, the frequency of nystagmus was not necessarily reduced with visual suppression, so that the FFI (failure of fixation suppression index) was not a valid parameter.
収録刊行物
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- 耳鼻咽喉科臨床 補冊
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耳鼻咽喉科臨床 補冊 1997 (Supplement94), 38-51, 1997
The Society of Practical Otolaryngology
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詳細情報 詳細情報について
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- CRID
- 1390282680503803264
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- NII論文ID
- 10009235367
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- NII書誌ID
- AN10020883
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- NDL書誌ID
- 4336283
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- ISSN
- 09121870
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可