PERSONALITY FACTORS AND PSYCHOPHYSIOLOGICAL RESPONSE TO CHANGING STIMULUS INPUT

本项目的目标是调查 个性差异，感觉阈值，反应时间， 自主神经系统（ANS）活动在正常人。双边 皮肤传导性和心率已经在会话中被记录， 恒定和可变强度的色调和灯光， 其中听觉和双闪光阈值（TFT）由以下方法确定： 其允许信号检测分析并且其中简单的反应 时间是衡量的。一些标准化的性格测试也被 给出其中包括感官寻求的尺度，艾森克尺度 外倾性、神经质和精神质场依赖性， 焦虑此外，横向优势的综合措施， 被给予。一种实验性操纵ANS唤醒的方法 以最小的分散注意力的效果-从仰卧到仰卧的姿势变化， 站立-被用来研究这样的问题，如基地的影响， 反应水平，唤醒对表现的影响，以及 个性变量对这种关系的影响。这个项目 允许测试几个理论模型的关系， ANS活动，感官灵敏度和个性，其中一些具有 对精神病理学病因学的影响 最近，人格变量评估主要来自艾森克 量表和冲动的测量与ANS相关， 正常儿童和青少年的活动。最一致的 结果表明，外向性与人格特质呈负相关， 对非信号和信号刺激的皮肤电反应的幅度， 证实了其他实验室对成年人的检测结果。的量度 行为冲动性与信号强度呈正相关 刺激。外向性与反应时间呈负相关， 证实了这个实验室之前的结果

The objectives of this project are to investigate relationships among differences in personality, sensory thresholds, reaction time, and autonomic nervous system (ANS) activity in normal humans. Bilateral skin conductance and heart rate have been recorded in sessions in which constant and variable intensity tones and lights are presented, in which auditory and two-flash thresholds (TFT) are determined by methods which permit signal detection analyses and in which simple reaction time is measured. Several standardized personality tests were also given. These include scales of sensation-seeking, the Eysenck scales of extraversion, neuroticism, and psychoticism field dependence and anxiety. In addition comprehensive measures of lateral dominance have been given. A procedure for manipulating ANS arousal experimentally with minimal distracting effects - a change in posture from supine to standing - was used to study such problems as the effects of base levels on responsivity, the effects of arousal on performance, and the effects of personality variables on this relationship. This project allows testing of several theoretical models of the relationships of ANS activity, sensory sensitivity, and personality, some of which have implications for the etiology of psychopathology. Recently, personality variables assessed chiefly from the Eysenck scales and a measure of impulsivity have been correlated with ANS activity in normal children and adolescents. The most consistent results are negative correlations between Extraversion and the magnitudes of electrodermal responses to nonsignal and signal stimuli, confirming results on adults from other laboratories. A measure of behavioral impulsivity correlated positively with magnitudes to signal stimuli. Extraversion also correlated negatively with reaction time, confirming a previous result from this laboratory.