Being able to see a talking face confers a considerable advantage for speech perception in adulthood. However, behavioural data currently suggest that children fail to make full use of these available visual speech cues until age 8 or 9. This is particularly surprising given the potential utility of multiple informational cues during language…

This paper presents a model for examining the cognitive nature of artistic development in children. The model uses Witkin's differentiation theory as a basic construct with which to integrate theories of art criticism/aesthetics (particularly, E.B. Feldman's theory), developmental psychology (Jean Piaget), and linguistics. Witkin's Differentiation…

Investigated the emergence of class and propositional reasoning skills as a function of the developing ability to coordinate increasingly complex negation and affirmation operations with children from grades 1, 3, 5, and 7. Found that children's reasoning follows a logical development sequence and that different groups of items account for…

Previous research by Maratsos found that 3-year-olds were more accurate than four and 5-year-olds in selecting 'big' rectangles or animals when choosing between pairs of stimuli. A study then investigated the nature of the previous experiments themselves, particularly the procedures the researcher followed and the possible inferences which he drew…

The application of Piaget's theory of cognitive development to the assessment of mental ability of the mentally retarded is presented. Following a discussion of developmental theories and diagnosis of mental development, testing interviews demonstrate the limits of cognitive thought at each of three stages. Abnormal intellectual oscillations are…

Research literature on childrens' causal understanding in oral and written settings is reviewed. Results show that maturation and task complexity both influence childrens' causal understanding. However, the findings are contradictory, and no generalizations could be made about which factors influence causal understanding and at which ages they are…