laterality

In two groups, the difficulty of task increased the laterality of prefrontal cortex, premotor area, and inferior parietal lobule decreased, but the laterality of posterior part of inferior frontal gyrus increased.

两组中，与简单计算任务相比，执行复杂计算任务时前额皮层、运动前区和顶下小叶的LI均下降，而额下回后部LI增加。

Tachistoscopic visual half-field test was used to investigate functional hemispheric laterality for three kinds of cognitive processing task ( reading, simple addition and conceptual decision) on Arabic numerals and numerals in capital of Chinese characters.

用半视野速示术检查阿拉伯数字和汉字大写数字在三种任务加工条件（认读、简单相加、奇偶概念异同判断）下进行认知的大脑两半球机能活动一侧化效应。

In complex substraction, for both right handed groups, activation of functional areas of frontal and parietal lobe had the left laterality.

病例组和对照组右利手者的额、顶叶在复杂减法计算时均体现左侧偏侧化现象。