  Byrne and Logue (2008) propose that the label ‘metaphysical disjunctivism’ be reserved for an account of perceptual experience that commits to the claim there is no common mental element to veridical perception and hallucination. According to Byrne and Logue, those who deny that veridical perceptions and hallucinations are mental events of the same fundamental kind (see section 2.1) are not thereby committed to ‘metaphysical disjunctivism’, as Byrne and Logue use this label. For as they point out, those who reject the claim that veridical perceptions and hallucinations are mental events of the same fundamental kind need not deny that there is a common mental element to veridical perception and hallucination. So it is worth bearing in mind the particular use to which Byrne and Logue put the label ‘metaphysical disjunctivism’, as others would naturally characterise fundamental kind disjunctivism as a metaphysical disjunctivist thesis.