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Have you seen this scene? A concealed information task for scene recognition
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Norman, D. G., Gunnell, Daniel, Wade, K. and Watson, Derrick G. (2015) Have you seen this scene? A concealed information task for scene recognition. In: Decepticon: International Conference on Deceptive Behaviour, Cambridge, UK, 24-26 August 2015 (Unpublished)
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Official URL: https://www.cl.cam.ac.uk/events/decepticon2015/
Abstract
The concealed information test (CIT) is often advocated as a method for detecting deception. Information about a crime that only a guilty person would recognise, typically a single object (probe), is presented within a sequence of similar but irrelevant objects. Participant’s physiological responses to stimuli are recorded and used to indicate concealed recognition. In the present study, we examined whether the CIT is applicable to the recognition of whole scenes as opposed to single objects. University students each completed 10 scene CITs presented on a computer monitor. Each CIT contained: a probe, a recognisable campus scene; a target; and four similar but unfamiliar scenes. Participants were instructed to conceal recognition of scenes from Warwick campus and only answer “yes” to the target scene. Electrodermal Activity (EDA) and reaction time measures were taken for each scene. The results showed that the target scene typically elicited the greatest electrodermal responses in each block. However, no significant difference was found in reaction time measures between probe, target and irrelevant scenes. Furthermore, although probe scene recognition using EDA was much more promising, it fell short of that found in typical studies using objects. These results raise new questions about: i) use of the CIT for concealed scene recognition, ii) the relationship between, and potential issues of measuring reaction time and EDA within the same test, and iii) future design considerations (such as the use of single vs. multiprobe techniques) in the development of a scene-based CIT. If valid, scene-based CITs can be developed this will offer a greater range of information for investigators to utilise during questioning.
Item Type: | Conference Item (Poster) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) |
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Official Date: | September 2015 | ||||
Dates: |
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Status: | Peer Reviewed | ||||
Publication Status: | Unpublished | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Poster | ||||
Title of Event: | Decepticon: International Conference on Deceptive Behaviour | ||||
Type of Event: | Conference | ||||
Location of Event: | Cambridge, UK | ||||
Date(s) of Event: | 24-26 August 2015 | ||||
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