Camposano S, Alvarez C, Lolas F
Departamento de Fisiología y Biofísica, Faculdad de Medicina, Universidad de Chile, Santiago.
Arq Neuropsiquiatr. 1994 Dec;52(4):489-92. doi: 10.1590/s0004-282x1994000400006.
Eysenck's personality theory postulates 3 orthogonal dimensions of personality: extraversion (E), neuroticism (N) and psychoticism (P), predicting conductual and physiological predispositions to suffer mental illness. Biological bases of Eysenck's personality traits have been documented electrophysiologically. Psychoticism, the latest described dimension, is controverted, since there is some evidence of common factors with the other two. In order to assess the relation between Eysenck's dimensions and sensorial reactivity and information encoding processes we studied 20 healthy young subjects (mean age 28.5 years) with flash visual cortical evoked potentials (VEP, 3 intensities, peak to peak amplitude of III, IV-V-VI, VII components), and auditory cognitive evoked potentials (odd ball paradigm, P300 latency). There was a positive correlation between N and P dimensions (Spearman, r = 0.52), between N and VEP amplitude at high intensity (r = 0.58) and a negative correlation between E and P300 latency (r = 0.58). In short we found that P is not an independent dimension, but is related to sensorial reactivity. E dimension was related to encoding processes supporting Eysenck's observations about memory and learning differences.
外向性（E）、神经质（N）和精神质（P），它们预示着患精神疾病的行为和生理倾向。艾森克人格特质的生物学基础已通过电生理学得到记录。精神质是最新描述的维度，存在争议，因为有证据表明它与其他两个维度存在共同因素。为了评估艾森克维度与感觉反应性和信息编码过程之间的关系，我们研究了20名健康年轻受试者（平均年龄28.5岁），记录了闪光视觉皮层诱发电位（VEP，3种强度，III、IV-V-VI、VII成分的峰峰值幅度）和听觉认知诱发电位（odd ball范式，P300潜伏期）。N维度与P维度之间存在正相关（斯皮尔曼相关系数，r = 0.52），高强度下N维度与VEP幅度之间存在正相关（r = 0.58），E维度与P300潜伏期之间存在负相关（r = 0.58）。简而言之，我们发现P不是一个独立的维度，而是与感觉反应性有关。E维度与支持艾森克关于记忆和学习差异观察的编码过程有关。
