ISSN : 1229-0653
본 연구에서는 폴리그래프 검사에서 객관적 자기인식이 용의자의 생리적 반응에 미치는 영향에 대해 검토하였다. 이를 위해서 실제 범죄사건 용의자들을 대상으로 객관적 자기인식(거울 유무)을 조작하여 생리적 반응을 측정하였으며, 용의자 집단 중 폴리그래프 검사결과 및 검찰 처분결과를 근거로 진실집단과 거짓집단으로 나누어 객관적 자기인식에 따른 집단 간 생리적 반응을 비교하였다. 분석결과, 진실집단은 객관적 자기인식에 따라 사건관련질문에서 생리적 반응 차이가 나타나지 않았으나, 거짓집단은 거울이 있는 조건이 거울이 없는 조건에 비교해 사건관련질문에서의 생리적 반응이 유의미하게 높은 것으로 나타났다. 즉 객관적 자기인식이 높은 상황에서 거짓말하는 사람은 불안과 긴장감의 증가로 인해 생리적 반응이 증가한 것으로 보인다. 이러한 결과는 폴리그래프 검사에서 객관적 자기인식이 용의자들의 진술 진위여부를 명확히 파악하는데 유용하게 활용될 것으로 판단된다.
This study aimed to examine differences in suspects’ physiological responses depending on objective self-awareness. To manipulate objective self-awareness, all the suspects were first seated in front of a mirror during a polygraph test, after which they completed the test without facing a mirror. Depending on the polygraph test results, the suspects were divided into two groups (lie and truth groups) to identify the differences in physiological responses. The results showed that in the lie group, suspects who completed the polygraph test in front of a mirror had more physiological responses than those who were not seated in front of a mirror. In contrast, the truth group showed no statistically significant differences in physiological responses related to self-awareness. The results indicate differences between the two groups in physiological responses depending on objective self-awareness. These findings may help to correctly detect the truth and lies in many applied settings.
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