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Elias, Marjorie F. – 1975
Perceptual motor development, habituation, and learning in squirrel monkeys were studied under controlled rearing and diet history conditions to determine whether the animal's level of behavioral development was similar to well-nourished animals of his own age (agemates) or his own size (sizemates). From birth to 8 weeks of age, the animals were…
Descriptors: Animal Behavior, Dietetics, Discrimination Learning, Mental Retardation
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Thomas, Glyn V.; And Others – Cognitive Development, 1994
Noting that children who can easily categorize a picture in terms of what it depicts may have difficulty understanding the picture as a representation or thing in itself, four experiments with children around four years old examined their responses to pictures as things in themselves. Results showed that some children had difficulty understanding…
Descriptors: Concept Formation, Discrimination Learning, Early Childhood Education, Phenomenology