Abstract
An ethology-based catalogue of twenty five items of facial behavior patterns is presented based on a research of Japanese day nursery children. Comparisons are made between the published and this catalogue in order to make clear the differences in ways to list facial behavior patterns and culturally influenced behavior patterns. It can be concluded that there is no developmental change in facial behavior patterns from one to five years old, though some cultural differences can be observed in other body patterns among preschool children, that the measurements of hedonic tone of facial behavior patterns seem to be the same cross-culturally, and that it is necessary to do research on the general meaning of the 'reassurance' behavior caused by the facial display observed in this research.
