 Gerald Samuel Lesser ( August 22 , 1926 – September 23 , 2010 ) was an American psychologist who served on the faculty of Harvard University from 1963 until his retirement in 1998 . Lesser was one of the chief advisers to the Children 's Television Workshop ( CTW , later known as the Sesame Workshop ) in the development and content of the long-running children 's television series Sesame Street , and was the director of the Sesame Street Research Department. живело 398 gånger.
Lesser was born in Brooklyn , New York , the son of a Russian Jewish immigrant father and an American mother. He graduated from Brook