Numerous studies have revealed that variations in physical maturity exert a robust impact on social perception. For example, schematic faces to which different levels of a growth transformation (cardioidal strain; see Alley, 1983) have been applied are judged differently in terms of social qualities correlated with maturational status (e.g., Alley, 1983). Similarly, faces that are younger in terms of strain and craniofacial maturity (i.e., have larger foreheads, lower feature placement, and more narrow chins) are judged to be higher along dimensions such as defense-provokingness, naivete, and submissiveness than are more mature faces.