Wilhelm
Wundt

University of Leipzig


Oswald
Külpe

University of Wurzburg


Karl
Bühler

Vienna University




Jean-Martin
Charcot

Hôpital Salpêtrière, Paris (Neurotree)


Johann Bernhard Aloys
von Gudden

Ludwig-Maximilians-Universität München (Neurotree)


Eugen
Bleuler

Universität Zürich (Neurotree)





Albert
Ellis

(Options)

Paul
Eddy

Columbia (Neurotree)

Sheldon H.
Rifkin

University of Tennessee (Neurotree)

Albert EllisX