【正文】
at according to its classification, using subtraction reaction principle, on 1 subjects to choose the time and tell the time measurement. The experimental process is divided into three steps: respectively, were asked to respond to the same stimuli, to make different responses to different stimuli and for different stimulus in a stimulus to make corresponding responses. It was found, simple reaction time was significantly smaller than the choice reaction time and reaction time, and choice reaction time significantly larger than the discriminative reaction time. In the modern psychology research, often put the reaction time as a index to analysis of people39。s perception, attention, learning, memory, thinking, motives, psychological。 at the same time, reaction time in practical application is also more widely, is one of the important indicators of certain occupation choice.Key words: subtraction of reaction time, simple reaction time, choice reaction time, reaction time