The ability to understand the thoughts and feelings of others develops remarkably early in infancy. At birth, infants demonstrate an early understanding of the thoughts and feelings of others by sharing emotions with their caregivers. These early affective exchanges subsequently facilitate the development of a more complex awareness of others,…

Revises an earlier experiment that revealed age-related increases in sensitivity to rhythmic information when judging the difference between a theme and selected pitch and rhythm variations. Tested the possibility that the developmental differences found earlier were due to characteristics of the test melody. Results supported the earlier study.…