Non‐invasive brain stimulation in the detection of deception: Scientific challenges and ethical consequences

Abstract

Tools for noninvasive stimulation of the brain, such as transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS), have provided new insights in the study of brain-behavior relationships due to their ability to directly alter cortical activity. In particular, TMS and tDCS have proven to be useful tools for establishing causal relationships between behavioral and brain imaging measures. As such, there has been interest in whether these tools may represent novel technologies for deception detection by altering a person's ability to engage brain networks involved in conscious deceit. Investigation of deceptive behavior using noninvasive brain stimulation is at an early stage. Here we review the existing literature on the application of noninvasive brain stimulation in the study of deception. Whether such approaches could be usefully applied to the detection of deception by altering a person's ability to engage brain networks involved in conscious deceit remains to be validated. Ethical and legal consequences of the development of such a technology are discussed.

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