Evolutionary psychology and the generation of culture, part I

Abstract

Culture is the ongoing product of the evolved psyches of individual humans living in groups. Progress in our understanding of culture as a phenomenon depends on progress in uncovering the nature of the evolved mechanisms that comprise the human psyche, including but not limited to those responsible for learning. Actual attemps to specify information processing mechanisms that could, in fact, perform tasks humans routinely perform have demonstrated that the human psyche cannot, even in principle, be comprised only of a general purpose learning mechanism or any other general purpose mechanism, such as an inclusive fitness maximizer. Instead, the human psyche appears to consist of a large number of mechanisms, many or most of which are special purpose and domain-specific. The output of these mechanisms taken together constitutes the "private culture" of each individual, and the interactions of these private cultures lead to the cross-individual patterns of similarity that have led anthropologists to think typologically of social groups as having "a" culture. The construction of a scientific theory of culture requires as its building blocks specific models of these psychological mechanisms, and so evolutionary anthropology depends on the forging of an evolutionary psychology. The most productive application of evolutionary biology is, therefore, in the study of the psychological mechanisms that generate and shape culture, rather than in the attempt to impose on cultural change too close a parallel to population genetics and organic evolution.