What Are Group Level Traits and How Do They Evolve?

Cultural traits are seldom atomic, are distributed over multiple social domains, and undergo differential selection. This makes it important to study the nature and evolution of these traits from a global viewpoint. This paper considers group level cultural traits-what sort of traits are there, how do they evolve, and what is the relationship between cultural traits and their representation in individual worldviews. While not providing a concise theory, important aspects of cultural traits are elaborated and directions of further research indicated. Group level traits arising from individual biological traits are distinguished from those that are intrinsic to a group. The latter are formative of individual worldviews and are emotionally salient for group members. Children are saturated with culture from birth, it provides the scaffolding for their developing worldviews. Affective links between cultural ideas, social behavior, and material elements of culture develop so that the affordances in perceived situations carry biases influencing behavior toward culturally acceptable responses. Intrinsic traits are not, however, acted on directly by group level selection; rather, this selection acts on the behavior of group members and only indirectly on intrinsic cultural ideas through social exchange processes between group members.