Lee Edward
Travis

University of Iowa


Donald
Lindsley

University of Iowa (PsychTree)


Clark L.
Hull

UW Madison


Joseph Anthony
Gengerelli

UCLA (PsychTree)


Jack
Michael

Western Michigan University (PsychTree)


Raymond
Saussure

Columbia (PsychTree)


Kurt
Koffka

Smith College


Max
Wertheimer

New School for Social Research


Anita Castilho Marcondes
Cabral

École Libre des Hautes Études de New York (PsychTree)




Celso
Goyos

Universidade Federal de São Carlos, SP, Brazil

Giovana
Escobal

Universidade Federal de São Carlos, SP, Brazil
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Giovana EscobalX