但是研究者发现，这个发育的进程在患有注意力缺陷多动障碍的儿童的大脑额区变迟缓了。

However, the researchers discovered that this process was delayed in frontal brain regions in children with ADHD.

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目的：探讨注意力缺陷多动障碍(ADHD)儿童的依恋特点及不同临床亚型患儿依恋特点的异同。

Objective: To investigate the features of attachment in children with attention deficit-hyperactivity disorder (ADHD) and of children with different clinical subtypes of ADHD.

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