Emotional arousal modulates the encoding of crime‐related details and corresponding physiological responses in the Concealed Information Test

Abstract

Previous studies demonstrated that concealed crime-related memories can be validly identified using the Concealed Information Test (CIT). However, its field applicability is still debated, and it is specifically unknown how emotional arousal during a crime would influence CIT results. In the current study, emotional arousal during a mock crime and the time delay between mock crime and CIT examination were manipulated. At the immediate and the delayed CIT occasion, central crime details were better remembered than peripheral ones and enhanced emotional arousal further reduced memory for peripheral information. Electrodermal, respiratory, and cardiovascular responses to central crime details were strong and CIT validity was unaffected by delaying the test when arousal was induced during the mock crime. These findings indicate that emotional arousal might facilitate the detection of concealed information some time after a crime occurred.

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