People like Mihaly Csikszentmihalyi

Mihaly Robert Csikszentmihalyi was a Hungarian-American psychologist. He recognized and named the psychological concept of "flow", a highly focused mental state conducive to productivity. He was the Distinguished Professor of Psychology and Management at Claremont Graduate University. He was also the former head of the department of psychology at the University of Chicago and of the department of sociology and anthropology at Lake Forest College.