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Visuospatial countermeasures by liars familiar with the alibi setting

Konferensbidrag (offentliggjort, men ej förlagsutgivet)
Författare Haneen Deeb
Pär-Anders Granhag
Aldert Vrij
Leif Strömwall
Lorraine Hope
Samantha Mann
Publicerad i International Investigative Interviewing Research Group (iIIRG) Conference, 20-24 June 2016, London
Publiceringsår 2016
Publicerad vid Psykologiska institutionen
Språk en
Ämnesord deception, countermeasure, drawing, familiarity, consistency
Ämneskategorier Psykologi

Sammanfattning

The current study addresses visuospatial countermeasures employed by suspects in investigative interviews. Participants (N =144) visited a restaurant to buy a sandwich (truth tellers) or to use it as an alibi (liars). Half of the liars were informed they might be asked for a drawing of the alibi setting if interviewed (Informed Liars). Participants spent either 10 min (High Familiarity condition) or 30 s (Low Familiarity condition) in the restaurant. All participants were interviewed twice with different visuospatial tasks. Statements were assessed for the number of salient and non-salient details and for consistency between interviews and consistency with the alibi setting. Informed Liars provided significantly more salient and non-salient details than Uninformed Liars and Truth tellers. The difference for non-salient details was more pronounced in the High Familiarity than in the Low Familiarity condition. Uninformed Liars and Truth tellers did not differ in their accounts. Hence, Informed Liars failed to mimic truth tellers’ visuospatial statements as they provided overly detailed statements. Nonetheless, they could not provide overly consistent statements, so consistency merits more attention in the lie detection field.

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