Njemanze P C
Non-Invasive Flow Neurocybernetic Laboratory, Chidicon Medical Center, Imo State, Nigeria.
Brain Lang. 1996 Jun;53(3):315-25. doi: 10.1006/brln.1996.0051.
Seven right handed volunteers were studied to determine cerebral lateralization patterns for a visually presented random letter task. The subjects participated in three conditions, which included resting baseline, passive fixation (nonlinguistic), and random letter (linguistic) tasks. Mean blood flow velocity (MBFV) was recorded using bilateral simultaneous transcranial Doppler measurements in the posterior cerebral arteries in these conditions. The experimental conditions produced an increase in MBFV during both tasks but the linguistic task showed a greater change. There was a tendency toward right lateralization with the linguistic compared to the nonlinguistic tasks. There is a physiological correlate of right hemisphere participation in the processing of the random letter task.
对七名右利手志愿者进行了研究，以确定视觉呈现随机字母任务的大脑半球偏侧化模式。受试者参与了三种条件，包括静息基线、被动注视（非语言）和随机字母（语言）任务。在这些条件下，使用双侧同步经颅多普勒测量大脑后动脉的平均血流速度（MBFV）。实验条件在两项任务中均使MBFV增加，但语言任务显示出更大的变化。与非语言任务相比，语言任务存在右半球偏侧化的趋势。右半球参与随机字母任务处理存在生理相关性。
