Eustressed or Distressed? Combining Physiology with Observation in User Studies. Avinash Wesley Dr. Peggy Lindner (Co-Advisor) Dr. Ioannis Pavlidis (Advisor). Stress Signs. Introduction Methods Results and Discussion Acknowledgements. Stress Mechanism Motivation Background.
in the Thermal Imagery 
Courtesy of Science channel
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d(x,5): Euclidean distance between ROI-x and 5, (x 5)
Inner + Outer Eyebrow Raise
* Use of visual images instead of thermal images for display purpose only