论文部分内容阅读
目的取得本实验室正常成人认知电位 P_(300)实验资料及正常值。方法应用丹麦电生理仪和短音刺激,以及两套触发和刺激系统,两个完全独立的分析时间窗口,对39例正常成人的 P_(300)作了检测。结果分析了基本波型,提出了靶与非靶刺激时Fz、Cz 和 Pz 区域 P_(300)诸指标的平均值,对 C3、C4等左右半球作了对比无明显差异。结论正常成人 P_(300)是可靠的,是反映神经心理学认知过程的皮质认知诱发脑波。
Objective To obtain the experimental data and normal values of P_ (300) in our laboratory. Methods P300 in 39 normal adults was detected by Danish electrophysiological instrument and short tone stimulus, and two sets of triggering and stimulating systems. Two completely independent analysis time windows were used. Results The basic waveforms were analyzed and the average values of P_ (300) indices in Fz, Cz and Pz regions of target and non-target stimuli were proposed. There was no significant difference between left and right hemispheres such as C3 and C4. Conclusion Normal adult P_ (300) is reliable and cortical cognitive evoked brain wave reflecting neuropsychological cognitive process.