The more activations were demonstrated in bilateral parietal lobule and left frontal regions, extra activation was in the right lobes, presenting basically symmetrical activation in the bilateral frontal lobes.

• 在联合特征搜索任务下,老年组双顶叶激活增加; 左额叶激活增加,右额叶(BA6)额外出现激活,出现双额叶基本对称的激活模式;