Abstract: 12 subjects with high neuroticism scores and 12 subjects with low Nscores were chosen by using Eysenck Personality Questionnaire and a complexchoicereaction task under time pressure. Urine catecholamine excretion,pulserate, breathing rate, breathing volume, galvanic skin response andsubjective psychological reactions were measured during and after the workperiod. The result showed large individual differences in the two groups.High N scores increased signifficantly at catecholamine excretion and fivephysiological indexes compared with low N scores, and high N scores hadgreater subjective psychological reactions. In the other hand, the resultalso showed signifficant positive correlation between catecholamine and pu-lse rate, When the result of the present experiment was compared withthe result got in section of natural stressor, same efficiency was foundbetween natrual stressor and laboratory stressor.

Key words: NULL