Vygotsky Circle was an influential informal network of psychologists, educationalists, medical specialists, physiologists, and neuroscientists, associated with Lev Vygotsky (1896–1934) and Alexander Luria (1902–1977), active in 1920-early 1940s in the Soviet Union (Moscow, Leningrad, and Kharkov). The work of the Circle contributed to the foundation of the integrative science of mind, brain, and behavior in their cultural and bio-social development also known under somewhat vague and imprecise name of cultural-historical psychology.