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Direct linkGrosse, Katja; Call, Josep; Carpenter, Malinda; Tomasello, Michael – Language Learning and Development, 2015
In all human cultures, people gesture iconically. However, the evolutionary basis of iconic gestures is unknown. In this study, chimpanzees and bonobos, and 2- and 3-year-old children, learned how to operate two apparatuses to get rewards. Then, at test, only a human adult had access to the apparatuses, and participants could instruct her about…
Descriptors: Animals, Animal Behavior, Child Behavior, Nonverbal Communication
Call, Josep – Cognition, 2007
Four bonobos, seven gorillas, and six orangutans were presented with two small rectangular boards on a platform. One of the boards had a piece of food under it so that it acquired an inclined orientation whereas the other remained flat on the platform. Subjects preferentially selected the inclined board. In another experiment, subjects were…
Descriptors: Rewards, Inferences, Animals, Primatology
