Cultural psychology is a fiel of psychology which assumes the idea that culture and mind are inseparable, thus there are no universal laws for how the mind works and that psychological theories grounded in one culture are likely to be limited in applicability when applied to a different culture. As Richard Shweder, one of the major proponents of the field, writes, "Cultural psychology is the study of the way cultural traditions and social practices regulate, express, and transform the human psyche, resulting less in psychic unity for humankind than in ethnic divergences in mind, self, and emotion" (1991, p. 72).