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Direct linkHerrmann, Esther; Tomasello, Michael – Developmental Science, 2006
Chimpanzees ("Pan troglodytes") and bonobos ("Pan paniscus") (Study 1) and 18- and 24-month-old human children (Study 2) participated in a novel communicative task. A human experimenter (E) hid food or a toy in one of two opaque containers before gesturing towards the reward's location in one of two ways. In the Informing condition, she attempted…
Descriptors: Comprehension, Inferences, Object Permanence, Infants
Livingston, Kenneth R.; Andrews, Janet K. – Developmental Science, 2005
After learning to categorize a set of alien-like stimuli in the context of a story, a group of 5-year-old children and adults judged pairs of stimuli from different categories to be less similar than did groups not learning the category distinction. In a same-different task, the learning group made more errors on pairs of non-identical stimuli…
Descriptors: Stimuli, Young Children, Adults, Concept Formation
