Search Results - Patterson, Francine

Francine Patterson

Francine "Penny" Patterson (born February 13, 1947) 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. Provided by Wikipedia