Epidemiology and Pathological Condition of Attention-deficit/hyperactivity Disorder : From Perspective of Relationship Between Genetic and Environmental Factors

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  • 注意欠如多動性障害（ADHD）の疫学と病態：遺伝要因と環境要因の関係性の視点から
  • 特別講演 注意欠如多動性障害(ADHD)の疫学と病態 : 遺伝要因と環境要因の関係性の視点から
  • トクベツ コウエン チュウイ ケツジョ タドウセイ ショウガイ(ADHD)ノ エキガク ト ビョウタイ : イデン ヨウイン ト カンキョウ ヨウイン ノ カンケイセイ ノ シテン カラ

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<p>Attention-deficit/hyperactivity disorder (ADHD), just like autism, has attracted a considerable social interest not only during childhood and adolescence, but also during adulthood due to its serious concern at workplace. Etiology of ADHD is extremely complex and heterogeneous, including genetic factors, natural environmental factors, and psychosocial environmental factors. Although ADHD can be regarded as multifactorial congenital or early-infancy established developmental disorder into which all of these multiple factors are involved, the clinical features of ADHD are sometimes difficult to grasp due to mutual correlation of these etiological factors. In addition, ADHD is accompanied by a broad range of somatic and psychiatric comorbidities, which often lead patients to clinical setting for the first time. Furthermore, it should be noted that concept of ADHD has changed, being affected by social standard of value at each generation over time. Therefore, biological study within the single ‘category’ of ADHD may have some shortcomings, rather, it might be better to comprehend ADHD as ‘dimension’ of personal traits. In this review, these issues have been discussed from perspective of relationship between genetic and environmental etiological factors.</p>

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