ActorBorn Feb 13, 1947Chicago, Illinois, USA2 titles
Francine "Penny" Patterson is an American animal psychologist. From 1972 onwards, she taught a modified form of American Sign Language, which she called "Gorilla Sign Language" (GSL), to a gorilla named Koko. The scientific validity of Patterson's claims about the extent of Koko's language mastery has been widely rejected in linguistic and other specialist circles.
Biography from Wikipedia, licensed under CC BY-SA.
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