Alfred
Binet

Sorbonne (Neurotree)


Théodore
Simon

(Neurotree)


Édouard
Claparède

Rousseau Institute (Neurotree)


Jean
Piaget

University of Geneva (Neurotree)


?


Oscar
Newman

New York University and Cooper Union


Jack L.
Nasar

Ohio State

Michael
Greenberg

(Options)

Michael GreenbergX