PUPIL DIAMETER

A correlation between pupil diameter and mental workload has been known since the 1970s.

Modern eye-tracking systems can easily detect pupil size, making it practical to study this measurement systematically.

  • Significance for the emotional intensity: high
  • Informative value on the kind of emotion: low
  • Informative value on the mental workload: high
  • Effort: measurements through standard eye tracking systems