| abstract |
Described herein are systems and methods for detecting a physiological response based on thermal measurements while accounting for consumption of a confounding substance such as a medication, alcohol, caffeine, or nicotine. In one embodiment, a system includes a computer and an inward-facing head-mounted thermal camera (CAM) that takes thermal measurements of a region of interest (TH ROI ) on a user's face. The computer receives an indication indicative of the user consuming a confounding substance that affects TH ROI , and detects the physiological response while the consumed confounding substance affects TH ROI . The detection is based on TH ROI , the indication and a model. Optionally, the model was trained on: a first set of TH ROI taken while the confounding substance affected TH ROI , and a second set of TH ROI taken while the confounding substance did not affect TH ROI . |