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OPTOKINETIC PATTERN TEST IN CHILDREN Setsuko Takemori 1 pp.3-10
Published Date 1971/1/20
DOI https://doi.org/10.11477/mf.1492207580
  • Abstract
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 Optokinetic patterns (OKP) in children werestudied for examining the factor of aging on these patterns. Ten normal children of three different age groups, 4, 6, and 8 years old were tested and compared to those higher in age, 10-15 and 21-30 years old. Optokinetic stimuli were given in accordance to the original OKP test, i. e., acceleration and deceleration of ±4°/sec2 and the maximum speed of 160°/sec. Optokinetic nystagmus induced was recorded by ENG with the paper speed of 0.1cm/sec and 0.5cm/sec. The former was executed for obtaining patterns and the latter was to count nystagmic beats. Test-subjects were seated at the center of the drum for optokinetic stimulation. The visual targets were providedby means of 12 black 3 cm wide vertical stripes and/or of the pictures showing animals or dolls which were placed on each of the vertical stripes

 The present study showed that children older than 8 years of age could be regarded as adults in so far as the ability of eliciting optokinetic patterns concerned. In testing younger children of the ages of 4 and 6 years old, it appeared that better responses of nystagmus was obtained when pictures were used as targets rather than the vertical stripes ; especially in elevating the slow phase velocity of nystagmus but not necessarily for increasing the number of nystagmic beats.


Copyright © 1971, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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