We directly compared chimpanzee infants and human infants for categorical representations of three global-like categories (mammals, furniture and vehicles), using the familiarization-novelty preference technique. Neither species received any training during the experiments. We used the time that participants spent looking at the stimulus object…

The learning of categories by six severely handicapped students (8 to 18 years old) was measured within the context of manual sign training. As expected, results supported the best example theory of categorization which suggests that some objects are more representative of their category than others. Implications for classroom material selection…

Observation of mothers and their two-year-olds (N=10) in routine, free play, and novel discourse settings suggested that object labelling was more varied in natural than in experimental settings. Basic level tokens were less prevalent and subordinate level term usage was more common in the routine and novel contexts. (Author/CB)

Studied semantic and cognitive development of Korean-speaking and English-speaking children. Found that categorization and a naming spurt emerged later in Korean speakers than in English speakers, while means-ends abilities and success/failure words emerged earlier in Korean speakers than in English speakers. Also, Korean-speaking mothers…

In four parts, this discussion describes characteristics of the thought of infants, preschool children, primary school students, and adolescents. Topics briefly addressed in part I, on the thought processes/capabilities of babies, concern sensorimotor thought without abstraction, the importance of physical exploration, the development of…