Quantitative assessment of influence of aging on optokinetic nystagmus

Makoto Ishikawa; Tadashi Nakamura; Jin Watanabe; Koji Harada; Ryoji Kanayama; Yoshio Koike

doi:10.5631/jibirin.80.1345

Quantitative assessment of influence of aging on optokinetic nystagmus

Makoto Ishikawa, Tadashi Nakamura, Jin Watanabe, Koji Harada, Ryoji Kanayama, Yoshio Koike

Research output: Contribution to journal › Article › peer-review

Abstract

Optokinetic nystagmus (OKN) tests were performed in 50 normal adults in a quantitative assessment of the influence of aging on OKN. In OKN induced by linear acceleration, a statistically significant difference was noted in slow phase velocity only between the 30-59 year old group and the 70-79 year old group, when the stimulus velocity was over 60°/s. There was no significant difference in fast phase velocity among the age groups. In OKN induced by step inputs, we found no statistically significant influence of aging on slow phase velosity.

Original language	English
Pages (from-to)	1345-1351
Number of pages	7
Journal	Practica Oto-Rhino-Laryngologica
Volume	80
Issue number	9
DOIs	https://doi.org/10.5631/jibirin.80.1345
Publication status	Published - 1987
Externally published	Yes

Keywords

OKN
fast phase velocity
influence of aging
slow phase velocity

ASJC Scopus subject areas

Otorhinolaryngology

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10.5631/jibirin.80.1345

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title = "Quantitative assessment of influence of aging on optokinetic nystagmus",

abstract = "Optokinetic nystagmus (OKN) tests were performed in 50 normal adults in a quantitative assessment of the influence of aging on OKN. In OKN induced by linear acceleration, a statistically significant difference was noted in slow phase velocity only between the 30-59 year old group and the 70-79 year old group, when the stimulus velocity was over 60°/s. There was no significant difference in fast phase velocity among the age groups. In OKN induced by step inputs, we found no statistically significant influence of aging on slow phase velosity.",

keywords = "OKN, fast phase velocity, influence of aging, slow phase velocity",

author = "Makoto Ishikawa and Tadashi Nakamura and Jin Watanabe and Koji Harada and Ryoji Kanayama and Yoshio Koike",

year = "1987",

doi = "10.5631/jibirin.80.1345",

language = "English",

volume = "80",

pages = "1345--1351",

journal = "Practica Oto-Rhino-Laryngologica",

issn = "0032-6313",

publisher = "Society of Practical Otolaryngology",

number = "9",

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TY - JOUR

T1 - Quantitative assessment of influence of aging on optokinetic nystagmus

AU - Ishikawa, Makoto

AU - Nakamura, Tadashi

AU - Watanabe, Jin

AU - Harada, Koji

AU - Kanayama, Ryoji

AU - Koike, Yoshio

PY - 1987

Y1 - 1987

N2 - Optokinetic nystagmus (OKN) tests were performed in 50 normal adults in a quantitative assessment of the influence of aging on OKN. In OKN induced by linear acceleration, a statistically significant difference was noted in slow phase velocity only between the 30-59 year old group and the 70-79 year old group, when the stimulus velocity was over 60°/s. There was no significant difference in fast phase velocity among the age groups. In OKN induced by step inputs, we found no statistically significant influence of aging on slow phase velosity.

AB - Optokinetic nystagmus (OKN) tests were performed in 50 normal adults in a quantitative assessment of the influence of aging on OKN. In OKN induced by linear acceleration, a statistically significant difference was noted in slow phase velocity only between the 30-59 year old group and the 70-79 year old group, when the stimulus velocity was over 60°/s. There was no significant difference in fast phase velocity among the age groups. In OKN induced by step inputs, we found no statistically significant influence of aging on slow phase velosity.

KW - OKN

KW - fast phase velocity

KW - influence of aging

KW - slow phase velocity

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JO - Practica Oto-Rhino-Laryngologica

JF - Practica Oto-Rhino-Laryngologica

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Quantitative assessment of influence of aging on optokinetic nystagmus

Abstract

Keywords

ASJC Scopus subject areas

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