And during single word component processing, rCBV increased in both groups, however the intensity and the area of regional cerebral activated were lower in RD children than in normal( P< 0.05).

词语成分加工时，RD儿童和正常儿童左前额叶的血流量均呈现增加趋势，但RD儿童脑区域激活强度和激活范围较对照组明显减弱（P< 0 .0 5）。

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