Examined geographical representations among children and young adults. Found that a distinct home region was apparent at age 9. At age 11, children divided North America into regions the same as university students. Children used new location information to update location estimates. Children preserved ordinal structure of initial location…

Infants 8.5 and 9.5 months of age were tested for ability to determine the location of an object hidden in one of two covered containers before their left-right positions were reversed. Only the older infants provided with different colored covers to their containers were able to do this task. (Author/DB)

Five- to six-year-old children estimated the size of Euclidian objects using an addition rule of Height plus Width, rather than a multiplying rule. Within the framework of information integration theory, tested whether intensive handling of objects would facilitate shift from addition rule to multiplication rule. Found that following handling,…