Concealed information revealed by involuntary eye movements on the fringe of awareness in a mock terror experiment.

Following this analysis, we concluded that although some overfitting of the methods could be responsible for the 100% correct identification and for the high AUC values in classification, highly significant results could be obtained effortlessly and in different ways, e.g., with the ‘drift’ (total movement) of the eyes (Fig. 5 e), or even with pupil size modulation (Fig. 5 f); see the “Robustness” section above.

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