Bluma Zeigarnik
24 February 1988
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Bluma Zeigarnik
Bluma Wulfovna Zeigarnik (Russian: Блю́ма Ву́льфовна Зейга́рник; 9 November 1901 – 24 February 1988) was a Soviet psychologist and psychiatrist, a member of the Berlin School of experimental psychology and Vygotsky Circle. She discovered the Zeigarnik effect and contributed to the establishment of experimental psychopathology as a separate discipline in the Soviet Union in the post-World War II period.