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"Can the eyes of a suspect reveal that he is guilty of a crime?" : Solving crimes with eye-tracking technology

Amui, Rebecca (2019) "Can the eyes of a suspect reveal that he is guilty of a crime?" : Solving crimes with eye-tracking technology.

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Abstract:The current research deals with the question whether people who possess guilty knowledge differ in their eye-movement patterns (i.e. fixation duration and fixation counts) in comparison to innocent people who do not possess guilty knowledge. In addition, eyewitnesses were also taken into account. Therefore, a between-subjects design with three conditions: guilty, eye-witness and innocent was used. Participants watched a First Person Perspective (FPP) video in which guilty knowledge in the guilty and eyewitness condition was manipulated. Then a Guilty Knowledge Test was conducted in which participants viewed four pictures of different guns and were asked whether they have seen one of these in relation to this investigation. While participants looked at the pictures of the guns, their eyes were tracked with a wearable eye-tracker. The results of the current study showed that guilty participants reveal their guilty knowledge by different fixation behavior in comparison to eyewitnesses and innocent participants. Further, the manipulation of guilty knowledge and inducement of feeling of guilt on innocent participants who have not committed a crime worked successfully. Future research should investigate further eye-tracking metrics.
Item Type:Essay (Bachelor)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology BSc (56604)
Link to this item:https://purl.utwente.nl/essays/78447
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