I argue that despite the merits of Jefferson’s account of a brain disorder, which are many, the notion of function she deploys is unsuitable to the overall goals of that account. In particular, Jefferson accepts Cummins’ causal role theory of function and dysfunction. As the causal role view, in its standard elaborations, is wedded to human interests, goals, and values, it cannot serve as a value-neutral anchor for her hybrid “harm-dysfunction” account of disorder. I argue that the selected effects theory, (...) or some comparably value-neutral account, would serve her purposes better. (shrink)