Koko Signs "Brush"

In this footage we see Koko ages 1 to 29 years old as she learns and uses the sign “Brush/Comb”. From the earliest stages of development as a baby, to mastering the sign independently, Koko's journey with the sign for 'Brush' exemplifies the power of motivation in learning. Grooming proved to be a compelling incentive for Koko's linguistic development.

Видео Koko Signs "Brush" канала kokoflix