title: Identifying the location of a concealed object through unintentional eye movements.
abstract: In some investigative and interrogative contexts, the investigator is seeking to identify the location of an object (e.g., implanted bomb) which is known to a given subject (e.g., a terrorist). In this paper, we present a non-intrusive methodology for uncovering the loci of a concealed object by analyzing the subject's eye movements. Using a combination of eye tracking, psychological manipulation and a search algorithm, we have performed two experiments. In the first experiment, we have gained 58% hit rate in identifying the location of the concealed object and in the second experiment 56% hit rate. The pros and cons of the methodology for forensic investigation are discussed.
authors.affiliation: Homeland Security Institute and Department of Education, Ben-Gurion University of the Negev Beer-Sheva, Israel.
authors.forename: Yair
authors.initials: Y
authors.lastname: Neuman
authors.affiliation: Independent Researcher Petakh-Tikva, Israel.
authors.forename: Dan
authors.initials: D
authors.lastname: Assaf
authors.affiliation: Wales Ltd. Ramat-Gan, Israel.
authors.forename: Navot
authors.initials: N
authors.lastname: Israeli
keywords: Homeland security; cognition; concealed object; endogenous/exogenous attention; eye movements; investigation