Purpose: The aim of this study was to investigate developmental and noise-induced changes in central auditory processing indexed by event-related potentials in typically developing children. Method: P1, N2, and N4 responses as well as mismatch negativities (MMNs) were recorded for standard syllables and consonants, frequency, intensity, vowel, and…

An important aspect of perspective-taking ability is the appreciation that mental states such as beliefs, desires, and knowledge change over time. The current study focused specifically on 3-, 4-, and 5-year-olds' understanding that they will have knowledge in the future that they do not currently possess--for example, that when they are…

Biological kinds undergo a variety of changes during their life span, and these changes vary in degree by organism. Understanding that an organism, such as a caterpillar, maintains category identity over its life span despite dramatic changes is a key concept in biological reasoning. At present, we know little about the developmental trajectory of…

A follow-up study was conducted to determine if changes would occur in the sex stereotyping of child- selected play activities over a 6-month period. Subjects were fifty 3-, 4-, and 5-year-old children enrolled in nursery school programs at a midwestern university during the 1979-80 school year. For one 6-week period in the fall and one in the…

The effects of changes in spatial density on preschool children's behavior were examined in a quasi-experimental study involving repeated measures taken on two experimental groups and one control group. Subjects were all 59 children registered in three rooms of a non-profit public day care center in Edmonton, Alberta, Canada. Both quantitative and…