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Detection of Deception Using the Steady‐State Visual Evoked Field
Author(s) -
Katayama Shota,
Itabashi Yusuke,
Tanaka Keita,
Uchikawa Yoshinori
Publication year - 2014
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11574
Subject(s) - magnetoencephalography , waveform , amplitude , deception , stimulus (psychology) , speech recognition , visual evoked potentials , steady state (chemistry) , computer science , mathematics , acoustics , communication , psychology , physics , electroencephalography , optics , neuroscience , cognitive psychology , telecommunications , social psychology , radar , chemistry
SUMMARY This study investigated the idea that the detection of deception is related to the amplitudes of the steady‐state visual evoked field (SSVEF) in magnetoencephalography (MEG). We used four illustrated symbol cards (triangle, square, circle, and diamond). Each subject then selected one card for use as the critical condition and the other three cards were used under the noncritical conditions. The visual stimuli of the symbols were presented at 20 Hz. The SSVEF obtained by MEG was measured with a 122‐channel magnetometer system. We obtained the source waveform of the SSVEF and applied the Hilbert transform. The amplitude of the SSVEF in the critical condition was greater than that in the the noncritical condition at durations of 0.5 s to 1.0 s after the stimulus ( p < 0.05 ). This result indicates that the SSVEF in MEG is related to certain psychical activities in humans.