Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Outline of Final Research Achievements |
The purpose of this study was to examine the risk factors of substance use (specifically, smoking and drinking) among adolescents. Results of one study revealed that adolescent substance use is associated not only with their own personality traits but also with maternal personality traits, substance use, and depression. Further, results of a twin study showed that the relationships among personality traits, depression, and substance use could contribute to additive genetic and non-shared environmental influences. These findings imply that both the parent―child relationship and environmental factors (e.g. family and school life), as well as children's personality traits, are equally important to the examination of, early detection of, and intervention in regard to substance use among adolescents.
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