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Lying In The Scanner: Covert Countermeasures Disrupt Deception Detection By Functional Magnetic Resonance Imaging, Giorgio Ganis, J. Peter Rosenfeld, John B. Meixner Jr., Rogier Kievit, Haline Schendan

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Functional magnetic resonance imaging (fMRI) studies have documented differences between deceptive and honest responses. Capitalizing on this research, companies marketing fMRI-based lie detection services have been founded, generating methodological and ethical concerns in scientific and legal communities. Critically, no fMRI study has examined directly the effect of countermeasures, methods used by prevaricators to defeat deception detection procedures. An fMRI study was conducted to fill this research gap using a concealed information paradigm in which participants were trained to use countermeasures. Robust group fMRI differences between deceptive and honest responses were found without, but not with countermeasures. Furthermore, in single participants, …