Six researchers' contributions to comparative psychology in Japan: 1900-1945

The field of comparative psychology (also called animal psychology) in Japan, as it developed from 1900 to 1945, is reviewed. After evaluating more than 100 research papers (including short abstracts), six researchers were selected as examples of typical Japanese comparative psychologists in approximately the first half of the 20th century. The chosen researchers, K. Masuda, R. Kuroda, S. Kanda, J. G. Yoshioka, S. Takagi, and T. Takemasa, for the most part focused their research in the areas of learning and perception or basic behavioral traits, commonly known as tropism. They studied a wide variety of subjects, from invertebrates to primates, until the end of World War II, when so-called neo-behaviorism prevailed.