Shared more. Cited more. Safe forever.
    • advanced search
    • submit works
    • about
    • help
    • contact us
    • login
    View Item 
    •   MOspace Home
    • University of Missouri-Kansas City
    • School of Graduate Studies (UMKC)
    • Theses and Dissertations (UMKC)
    • Theses (UMKC)
    • 2012 Theses (UMKC)
    • 2012 UMKC Theses - Freely Available Online
    • View Item
    •   MOspace Home
    • University of Missouri-Kansas City
    • School of Graduate Studies (UMKC)
    • Theses and Dissertations (UMKC)
    • Theses (UMKC)
    • 2012 Theses (UMKC)
    • 2012 UMKC Theses - Freely Available Online
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    advanced searchsubmit worksabouthelpcontact us

    Browse

    All of MOspaceCommunities & CollectionsDate IssuedAuthor/ContributorTitleIdentifierThesis DepartmentThesis AdvisorThesis SemesterThis CollectionDate IssuedAuthor/ContributorTitleIdentifierThesis DepartmentThesis AdvisorThesis Semester

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular AuthorsStatistics by Referrer

    Effects of deceptive behavior on biomechanical measures of standing posture

    Mullin, Darren Stanford
    View/Open
    [PDF] MullinEffDecBeh.pdf (2.075Mb)
    Date
    2012-06-22
    Format
    Thesis
    Metadata
    [+] Show full item record
    Abstract
    The accurate detection of deception has potential applications in many fields including credibility assessment, security screening, homeland security, and counter-terrorism. Techniques currently used for deception detection typically capitalize on deception-related physiological changes, and include polygraph testing, voice stress analysis, brain activity analysis, and thermal scanners. However, the use of these techniques in natural environments is limited as they often require intrusive sensors to be attached to the body. These limitations may be addressed with posturography, which involves studying the ground reactions associated with standing balance without the need for intrusive sensors. Therefore, the objective of the current study was to examine deception-related effects on measures of standing posture using a mock security screening interview. We hypothesized that deceptive participants, compared to truthful would demonstrate significant differences in ground reactions during the interview. Participants were required to pack a backpack with various items. One group of participants had items that were "prohibited", whereas the other group had equivalent, non-prohibited control items. Both groups were questioned about the contents of the backpack. The group with "prohibited" items was instructed not to reveal that they were carrying any prohibited items. Results of the study indicated that there was a significant deception-related decrease in center of pressure movement. The deception related decrease in both center of pressure pathlength and mean velocity suggests that people "freeze" when they are being deceptive. This notion was supported by increased oscillations in the anterior-posterior direction.
    Table of Contents
    Introduction -- Methods -- Results -- Discussion -- Conclusions -- Appendix A -- Appendix B
    URI
    http://hdl.handle.net/10355/14727
    Degree
    M.S.
    Thesis Department
    Mechanical Engineering (UMKC)
    Collections
    • Civil and Mechanical Engineering Electronic Theses and Dissertations (UMKC)
    • 2012 UMKC Theses - Freely Available Online

    If you encounter harmful or offensive content or language on this site please email us at harmfulcontent@umkc.edu. To learn more read our Harmful Content in Library and Archives Collections Policy.

    Send Feedback
    hosted by University of Missouri Library Systems
     

     


    If you encounter harmful or offensive content or language on this site please email us at harmfulcontent@umkc.edu. To learn more read our Harmful Content in Library and Archives Collections Policy.

    Send Feedback
    hosted by University of Missouri Library Systems