Single-trial discrimination of truthful from deceptive responses during a game of financial risk using alpha-band MEG signals

We studied whether magnetoencephalography (MEG) could detect deceptive responses on a single-subject, trial-by-trial basis. To elicit spontaneous, ecologically valid deception, we developed a paradigm in which subjects in a simulated customs setting were presented with a series of pictures of items which might be in their baggage, and for each item, they decided whether to "declare" (tell the truth) or "smuggle" (lie). Telling the truth …