人格特征与长潜伏期听觉诱发电位的相关研究

The correlation between personality traits and long latency auditory evoked potential

目的 研究人格特征与长潜伏期听觉诱发电位之间的相关性。方法 采用MMPI人格问卷、泽克曼的感觉寻求量表、泽克曼 -库赫曼人格问卷测查 79名大学生的人格特征并测试长潜伏期听觉诱发电位。结果 1.Cz、C3 、C4三个部位的N1、P2 潜伏期随刺激强度的增加而缩短 ;N1、P2 以及N1 P2 波幅随刺激强度的增加而增加。 2 .高感觉寻求者Cz、C3 、C4三个部位2 0分钟后第二次测试的ASF斜率明显减小 ,与首次测试相比具有显著性差异。结论 长潜伏期听觉诱发电位的快速习惯化现象可能是高感觉寻求者的一个特征性神经电生理标志。实验结果支持泽克曼的感觉寻求理论 ,即感觉寻求这种人格特征与皮层唤醒水平有关。

Objective To explore the correlation between personality traits and long latency auditory evoked potential. Methods Seventy eight college students were assessed with MMPI, Sensation seeking scale (SSS) and Zuckerman Kuhlman's personality inventory (ZKPQ), and underwent long latency auditory evoked potential studies using tones at 4 different intensities of 70,80,90,100dB SPL. Results 1. N 1/ P 2 latency at C 2/ C 3/ C 4 decreased while N 1/ P 2,N 1/ P 2 amplitudes increased when the stimulus intensity was increased. 2. High sensation seeker's ASF slope at C 2/ C 3/ C 4 significantly differ between the two runs. Conclusion Faster habituation in long latency auditory evoked potential is probably a electrophysiological trait of high sensation seekers and these relationships favor Zuckerman's theory that sensation seeking is related to the level of cortical arousal.