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Abstract
Electroencephalograms (EEGs) of children from the general population, assessed by
Rutter's questionnaires as having deviant behavior, were quantitatively evaluated
in Japan (n = 27), China (n = 39), and Korea (n = 87). Compared with age-matched normal behavior children in Japan (n = 30), China (n = 27), and Korea (n = 26), there were no differences either in the EEG frequency pattern or other EEG
variables. The EEGs of age-matched children diagnosed with attention deficit disorder
with hyperactivity in psychiatric clinics in Japan (n = 21), China (n = 41), and Korea (n = 29), were significantly different from those of normal and deviant behavior groups.
There were more delta and fast theta waves and fewer alpha waves in all three countries,
and hypothetical EEG maturation was retearded in Japan and China. These results suggested
that the deviant behavior of children in the general population had no biological
background, but presumably stemmed from psychosocial disadvantages. In contrast, the
symptoms of hyperactive children seemed to be related to a biological dysfunction
such as brain immaturity.
Keywords
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Article info
Publication history
Received in revised form:
March 31,
1993
Received:
August 7,
1992
Footnotes
☆This international collaborative study was initiated by the late Professor Ryo Takahashi, who was the principal investigator. The authors wish to acknowledge his guidance. Special thandks ar due to Dr. Naotaka Shinfuku for his valuable advise.
Identification
Copyright
© 1993 Published by Elsevier Inc.