Example greyscale thermal image with delineation mapping and five ROIs displayed: (A) forehead region, (B) periorbital region, (C) nasal region, (D) mouth region, (E) cheek regions (averaged).
Change in facial temperature (°C) at each location of experimenter contact. Error bars represent s.e.m. Black bars, opposite-sex experimenter; grey bars denote same-sex experimenter.
Self-reported arousal distributions. Values indicate the number of participant ratings given at each level of the Likert scale.
Regression model predicting overall facial temperature change based on 5 ROI. R2 = 0.92 (p < 0.001).
*p < 0.05.
**p < 0.01.
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