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REACTION OF INFANTS LESS THAN ONE YEAR IN AGE TOWARDS SOUNDS Jiro Takagi 1 pp.649-653
Published Date 1964/7/20
DOI https://doi.org/10.11477/mf.1492203291
  • Abstract
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 Using a specific noise made from a toy hearing tests were conducted on infants less than 1 year old.

 Reactions of hearing was shown in only 30% of the individuals examined with infants aged 1 month; 58% with 4 months; 94% with 7 months; and, 100% with 12 months.

 There are many varieties of rections that may be shown as a response to hearing but at about 4 months it would be most prominently shown in the eyes. This eye reaction has a tendency to gradually subside until about at 7 months when the infant begins to turn its head towards the source of the noise.


Copyright © 1964, 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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