20240808_ThinkingFast&Slow_pen

A Tale of 2 Systems

The Window to the Soul

The pupil dilation corresponding to the amount of effort gone into an activity is an excellent indicator of the stress we face w.r.t each task.

For tasks such as Add-1, in which a number is recited digit by digit to the best of a metronome, and on completing one number, each digit is added+1, the pupil dilates considerably.
For Add-3 task, the same but added by +3, the pupil dilates by almost 50%, as it is a very mentally taxing activity to follow multiple variable activities at once.