Effects of concealment on physiological and psychological responses during the Concealed Information Test

Kobayashi Takahiro, Fujii Masashi, Okuno Takuhiro, Fujihara Shuji, Suzuki Naoto

doi:10.4992/jjpsy.91.19019

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Other Title

隠蔽が隠匿情報検査時の生理的・心理的反応に及ぼす影響
インペイガイントクジョウホウケンサジノセイリテキ・シンリテキハンノウニオヨボスエイキョウ

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<p>This study examined the effects of concealment on physiological and psychological responses during the Concealed Information Test (CIT). Sixty police officers who volunteered for the study were randomly assigned to either the one non-concealing group (truthful response group) or two concealing groups (“Yes”-only or “No”-only response groups). They underwent the CIT and completed questionnaires about affect and anxiety. Although no significant differences were observed in tonic physiological responses, affect, and anxiety between the non-concealing and concealing groups, the concealing groups had significant differences between critical and noncritical items in skin conductance response (SCR), heart rate, normalized pulse volume, and respiratory speed. In the non-concealing group, only differences in SCR were observed. These results suggested that concealment during the CIT affects phasic physiological responses to stimuli independently of the effect on tonic physiological responses, affect, and anxiety.</p>

Journal

The Japanese journal of psychology

The Japanese journal of psychology 91 (2), 116-124, 2020

The Japanese Psychological Association

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