This paper reports how Electro-Optics (EO) technologies such as thermal and hyperspectral [1-3] imaging methods can
be used for the detection of stress remotely. Emotional or physical stresses induce a surge of adrenaline in the blood
stream under the command of the sympathetic nerve system, which, cannot be suppressed by training. The onset of this
alleviated level of adrenaline triggers a number of physiological chain reactions in the body, such as dilation of pupil and
an increased feed of blood to muscles etc. The capture of physiological responses, specifically the increase of blood
volume to pupil, have been reported by Pavlidis's pioneer thermal imaging work [4-7] who has shown a remarkable
increase of skin temperature in the periorbital region at the onset of stress. Our data has shown that other areas such as
the forehead, neck and cheek also exhibit alleviated skin temperatures dependent on the types of stressors. Our result has
also observed very similar thermal patterns due to physical exercising, to the one that induced by other physical stressors,
apparently in contradiction to Pavlidis's work [8]. Furthermore, we have found patches of alleviated temperature regions
in the forehead forming patterns characteristic to the types of stressors, dependent on whether they are physical or
emotional in origin. These stress induced thermal patterns have been seen to be quite distinct to the one resulting from
having high fever.
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