视觉事件相关电位和反应时间的临床应用价值初探

• 作 者: 潘速跃 杨文俊
• 机 构: 第一军医大学南方医院神经科,第一军医大学南方医院神经科 510516,510516
• 出 处: 临床脑电学杂志
• 发表日期: 1992年01期
• 关键词: 事件相关电位 反应时间(RT) 认知障碍 视觉 临床应用 心理学测验 障碍者 神经心理学 波形 记忆障碍

本文检测了15名不同病因患者的视觉事件相关电位和反应时间。根据神经心理学测验将15名患者分为两组,认知障碍组(9名)和认知功能正常组(6名),比较了两组之间N_2、P_3成分和RT的差异,并将它们与年龄相近的正常人作比较。结果发现认知障碍者ERPs波形分化差,N_2、P_2出现率低,N_2、P_2潜伏期和RT延长,P_2波幅降低,而认知功能正常患者和正常人相比,N_2、P_3、RT均无差异。根据以上结果我们认为ERPs和RT试用于临床值得进一步研究。

This article examined the visual event-related potentials and response times in 15 patients with different etiologies. According to the neuropsychological test, 15 patients were divided into two groups: cognitive impairment group (n = 9) and normal cognitive function group (n = 6). The differences of N 2, P 3 and RT between the two groups were compared. They are compared with normal age of similar people. The results showed that ERPs of cognitive impairment had poor waveform differentiation, low incidence of N 2, P 2, prolongation of N 2, P 2 and RT, and decreased amplitude of P 2. There was no difference in N 2, P 3 and RT between patients with cognitive impairment and normal controls . Based on the above results, we think that ERPs and RT should be used clinically for further study.