Proceedings of the Annual Meeting of the Cognitive Science Society

Systems of semantic categories vary across languages, and it has been proposed that this variation is constrained by a need for efficiency in communication. An important element of efficiency is communicative need, or how often a particular object needs to be referenced. Previous work has sometimes assumed for simplicity that the distribution of need over objects in a semantic domain does not vary across languages or cultures. Here, we explore culture-specific need as it relates to the kinship terminologies of Hindi and English. We assess the efficiency of each language's kin naming system under a variety of need distributions, including one based on that language's usage statistics, one based on the other language's usage statistics, and random permutations of each of those two distributions. Our results suggest that kinship terminologies reflect culture-specific communicative need.