Fig. 2
Significant negative associations between ear temperature and emotional arousal ratings. (a) Statistical parametric map highlighting significant clusters negatively associated with arousal ratings, overlaid onto a representative standardized thermal ear image. The blue crosshair marks the activation focus at the nose tip. (b) Contrast estimate plot (with a 90% confidence interval) at the activation focus, showing the positive contrast with emotional arousal (i.e., negative values indicate negative associations). (c) Group-mean time course of temperature change at the activation focus, aligned with group-mean arousal ratings for reference. Data were sampled from a 5-mm-radius spherical region of interest across five clips presented in the order of anger, sadness, neutral, contentment, and amusement.
