Jansen, Corné (2022) Concealed Information Testing on Fringe Awareness: Using Pupillometry and RSVP. Bachelor thesis, Psychology.
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Abstract
The concealed information test (CIT) is a method to detect the presence of information that a person is attempting to hide. CIT rests on the assumption that a confrontation with “guilty knowledge” will elicit an (involuntary) physiological reaction. It is, however, prone to various countermeasures. Presenting stimuli on the fringe of awareness reduces top-down processing and renders attempting countermeasures less effective. Previously studied using electroencephalography (EEG) and Rapid Serial Visual Presentation (RSVP), we now focus on pupillometry and RSVP as a CIT. This method has been successfully used by Chen et al. (2021), which study we will attempt to replicate. Participants were asked to look for a chosen fake name in a stream of names, while ignoring their real name. During these trials their pupil size was measured. We found that pupil size of participants is significantly larger when presented with their real name, compared to a random control name. Our results provide evidence that pupillometry with the RSVP method can be an effective form of CIT. Future research is needed to finetune the pupillometry method and to combine different CIT methods into one predictively powerful CIT. Keywords: Concealed information testing; RSVP; pupillometry; fringe awareness
| Item Type: | Thesis (Bachelor) |
|---|---|
| Supervisor name: | Mijn, W.R. van der |
| Degree programme: | Psychology |
| Differentiation route: | None [Bachelor Psychology] |
| Date Deposited: | 20 Jul 2022 10:45 |
| Last Modified: | 20 Jul 2022 10:45 |
| URI: | http://gmwpublic.studenttheses.ub.rug.nl/id/eprint/1040 |
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