 Inner-sense theory does face a number of difficulties, however. One objection is as follows (see Dretske 1995; Güzeldere 1995). If inner-sense theory were true, then how is it that there isn’t any phenomenology distinctive of inner sense, in the way that there is a phenomenology associated with each outer sense? Since each of the outer senses gives rise to a distinctive set of phenomenological properties, one might expect that if there were such a thing as inner sense, then there would also be a phenomenology distinctive of its operation. But there doesn’t appear to be any.