两种亚型注意缺陷多动障碍男童执行功能特征

【目的】 探讨注意缺陷多动障碍(attention deficit hyperactivity disorder,ADHD)混合型(ADHD-CT)及注意缺陷为主型(ADHD-IT)的男童执行功能特征。 【方法】 采用抑制(反应/不反应任务、停止信号任务、Stroop色-字任务)及工作记忆功能任务(顺背数字、倒背数字、Corsi木块回忆、n-Back)对76名ADHD-CT、15名ADHD-IT及15名对照组男童进行测试。 【结果】 1) ADHD组儿童在反应/不反应任务、Stroop色-字任务、倒背数字、Corsi木块回忆任务上的表现明显差于对照组儿童,控制年龄、年级、总智商后比较差异有统计学意义。2) ADHD-CT与ADHD-IT组儿童在各测试任务上的表现差异无统计学意义。 【结论】 ADHD儿童存在执行功能损伤。ADHD-CT与ADHD-IT亚型执行功能损伤模式相同。

Characteristics of executive function in two subtypes of boys with attention deficit hyperactivity disorder

【Objective】 To explore the characteristics of executive function in attention deficit hyperactivity disorder, predominantly inattentive subtype (ADHD-IT) and ADHD combined subtype (ADHD). 【Method】 Seventy-six boys with ADHD-CT, 15 boys with ADHD-IT and 54 healthy control subjects performed inhibition functions (Go/no-go task, Stroop color-word test,stop signal task) and working memory functions (digits forward, digits backward, Corsi block recall and visual spatial n-back). 【Results】 1) ADHD groups performed significantly worse than healthy controls did in Go/no-go task, Stroop color-word test, digits backward, and Corsi block recall. After controlling for age, grade and full-scale intelligence quotient (FIQ), the results remained unchanged.2)There were no significant differences in all tasks between ADHD-CT and ADHD-IT subtypes. 【Conclusion】 The results suggest that boys with ADHD showed deficit in executive function. The pattern of deficit in executive function between ADHD-CT and ADHD-IT subtypes is similar to each other.