Brain scans reveal 2 physical subtypes of ADHD. 1st subtype has increase in gray matter across areas of brain. Patients struggle with severe inattentiveness. 2nd subtype shows widespread atrophy in gray matter. Patients exhibit both inattentive and highly hyperactive or impulsive behaviors.

2026年2月14日 · 张伟 · 来源：tutorial导报

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Helps users improve vocabulary

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适用：数据均匀分布，如[0,1)之间的浮点数

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