Currently, different cognitive anthropologists are concerned with how groups of individuals are able to coordinate activities and "thinking" (Edwin Hutchins); with the distribution of cultural models (who knows what, and how people access knowledge within a culture: Dorothy Holland, A. Kimball Romney, Dan Sperber, Marc Swartz); with conflicting models within a culture (Naomi Quinn, Holly Mathews); or the ways in which cultural models are internalized and come to motivate behavior (Roy D'Andrade, Naomi Quinn, Charles Nuckolls, Bradd Shore, Claudia Strauss). Some cognitive anthropologists continue work on ethnoscience (Scott Atran), most notably in collaborative field projects with cognitive and social psychologists on culturally universal versus culturally particular models of human categorization and inference and how these mental models hinder or help social adaptations to natural environments. Others focus on methodological issues such as how to identify cultural models. Related work in cognitive linguistics and semantics also carries forward research on the Sapir–Whorf hypothesis and looks at the relationship between language and thought (Maurice Bloch, John Lucy, Anna Wierzbicka).