Indicates that 18- to 20-month-old infants can detect the correspondence between auditorially and visually perceived speech; that is, they manifest some of the components related to lip-reading phenomena in adults. This demonstration of the bimodal perception of speech in infancy has important implications for social, cognitive, and linguistic…

By age two, a child begins to form complex sentences by joining two or more sentences or by embedding one sentence into another. Formation of conjoined structures is a simpler process and emerges earlier than that of embedding structures. This paper attempts to answer the following questions: (1) Do children produce or understand embedding…

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…