 A meta-taxonomy of these varying foundational assumptions includes three intersecting issues: what mental disorders are; how much we can presently know about them; and different approaches to their analysis. Thus, objectivist (or naturalist) accounts, hold that mental disorders are empirically discoverable items that can be provided value-free description, while evaluativist (or normative) analyses deny the possibility of such value-free description (these are discussed in  §8.1).  Prepared to relinquish our current concepts, revisionists are also loosely distinguishable from conservatives favoring the retention of (at least some) traditional categorizations. And finally, the nature of mental disorder will be sought either through a posteriori scientific research based in cognitive science, or through conceptual analysis derived in part or whole from social and cultural norms.