Abstract: The present study,utilizing eletrodermal activity as an index of arousallevel and habituation,has the purpose to examine the inconsistancy of someprevious works on the feature of psychopysiologial reaction of cardiovasculardisease. 30 patients of coronary heart disease and 30 normal adults were used assubjects.After a 6 minute"rest"period,a series of tones and a tensionalperformance were presented successively as stimulation for habituation test ofpsychophysiological state. The results showed that patients of coronary heart disease as group wereoveraroused in comparing with normal adults.The results also showed thatpatients gave the tendency of slower habituation of electrodermal responseamplitude during tensional performance.Some problesm of psychophysiologicalfeatures and mechanism of coronary heart disease were discussed,and furtherresearch suggested.

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