Leli D A, Hannay H J, Falgout J C, Wilson E M, Wills E L, Katholi C R, Halsey J H
Brain Cogn. 1982 Apr;1(2):206-23. doi: 10.1016/0278-2626(82)90018-5.
A sensorimotor control activation task was used to isolate the focal cerebral blood flow changes resulting from the visual and cognitive processing of a right-left discrimination task. Eleven normal right-handed males participated. The sensorimotor control task produced significant bilateral increases in flow in most cortical channels. Significant bilateral parieto-occipital activation was found for the right-left discrimination task over and above the flow changes produced by the sensorimotor control task. The left occipital flow increase resulting from the right-left discrimination task was found to be negatively related to task performance. An inverse relationship was also found between WAIS Performance IQ and the blood flow change in the left parietal channel. These results suggest areas for further testing concerning potential individual differences in cognitive processing during the performance of a right-left discrimination task.
采用感觉运动控制激活任务来分离由左右辨别任务的视觉和认知处理所导致的局灶性脑血流变化。11名右利手正常男性参与了研究。感觉运动控制任务在大多数皮质通道中使血流出现显著的双侧增加。在感觉运动控制任务所产生的血流变化之上，发现左右辨别任务存在显著的双侧顶枕叶激活。发现左右辨别任务导致的左侧枕叶血流增加与任务表现呈负相关。在韦氏成人智力量表操作智商与左侧顶叶通道的血流变化之间也发现了一种反比关系。这些结果提示了在左右辨别任务执行过程中关于认知处理潜在个体差异的进一步测试领域。
