  Qualia problems in many forms—Can there be inverted qualia? (Block 1980a 1980b, Shoemaker 1981, 1982) Are qualia epiphenomenal? (Jackson 1982, Chalmers 1996) How could neural states give rise to qualia? (Levine 1983, McGinn 1991)—have loomed large in the recent past. But the What question raises a more basic problem of qualia: namely that of giving a clear and articulated description of our qualia space and the status of specific qualia within it.