Application of Eye Movement Desensitization and Reprocessing (EMDR)
Lemniscate de Gerono:
x (t) = a * sin (t);
y (t) = a * sin (t) * cos (t);
with periodic acceleration and change of direction.
The protocol has been patented by the University of Palo Alto: https://en.wikipedia.org/wiki/Eye_movement_desensitization_and_reprocessing
Source code: https://github.com/ThomasBucaioni/simpleEMDR