The effects of questions and visual presentations on SRR. and respiratory apnea in Guilty Knowledge Test

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  • SUZUKI Reiko
    Research Institute of Scientific Criminal Investigation, Chiba Prefectural Police H.Q
  • NAKAYAMA Makoto
    Research Institute of Scientific Criminal Investigation, Shizuoka Prefectural Police H.Q

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  • 呼吸停止とSRRにおけるGKTの質問内容と質問呈示方法の効果
  • コキュウ テイシ ト SRR ニ オケル GKT ノ シツモン ナイヨウ ト シツモン テイジ ホウホウ ノ コウカ

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It is pointed out that physiological reactions such as skin resistance response (SRR) and respiration change depend upon the respective independent mechanism in Guilty Knowledge Test (GKT). Additionally, it is noticed that of SRR evokes in the experimental GKT, respiratory apnea (RA) is reported only in the GKT for criminal investigation. In this study, the effects of the sort of questions and visual presentations are studied, taking the frequency of the largest SRR and RA in the records of 38 GKT cases which include at least one RA, and are conducted for criminal investigations. The result shows that the effects of the sort of critical questions and the method of questioning on SRR are not noticed while the increase in the frequency of RA is noticed in the questions regarding “place”, “details connected to the crime” and “actions of the offender” as compared to the questions regarding “numerals” and “details not connected to the crime”. Further, increase in the frequency of RA is noticed in the visual presentation as opposed to the auditory presentation. (Japanese Journal of Physiological Psychology and Psychophysiology, 22 (3) : 267-274, 2004.)

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