Literary Darwinists use concepts from evolutionary biology and the evolutionary human sciences to formulate principles of literary theory and interpret literary texts. They investigate interactions between human nature and the forms of cultural imagination, including literature and its oral antecedents. By "human nature", they mean a pan-human, genetically transmitted set of dispositions: motives, emotions, features of personality, and forms of cognition. Because the Darwinists concentrate on relations between genetically transmitted dispositions and specific cultural configurations, they often describe their work as "biocultural critique".