REACTIONS TO STRESS.
Final scientific rept. 1 Jan 67-1 Nov 69,
HEBREW UNIV JERUSALEM (ISRAEL) DEPT OF PSYCHOLOGY
Pagination or Media Count:
Consideration of the data of a series of experiments on Israeli Police trainees and criminal suspects suggests that differential psychophysiological reactivity of the GSR channel is not systematically reduced by stress within the range relevant to criminal interrogation. Further analysis of the criminal suspect data suggested that the detection rate could be raised through the combination of responses from the three polygraph channels GSR, Breathing, and Blood Pressure. This was particularly so for subjects having positive correlations between the different channel responsivities. In a most recent replication study using a different sample of criminal suspects somewhat different results were obtained with very low rates of detection in the breathing and blood pressure channel responses. Further analysis of this data is being undertaken. In still a different sample of criminal suspects a pattern of baseline heart-rate change was noted that seemed to be systematically related to the individuals GSR differential reactivity and detectibility. Author
- Stress Physiology