Martin Vrany

Naturalizing the Unity of Consciousness: can neuroscience explain a fundamental feature of subjectivity? Martin VranýThe aim of the dissertation is to analyze the concept of the unity of conscious- ness as an explanandum for natural sciences and assess how good an explanation do leading neuroscientific theories of consciousness provide. The motivation be- hind this project is the idea that it is the unity which poses the greatest challenge for the scientific quest for consciousness. I argue in the Introduction that the reason why some theories of consciousness lead to what Dennett calls Cartesian materialism is precisely because they fail to address the problem of the unity of consciousness. If we had a good understanding of the unity of consciousness and its place in nature, we could more easily avoid the tendency to devise accounts of consciousness that are homuncular in disguise. In chapter 2 I analyze various aspects in which consciousness is thought be unified and conclude that two such aspects are particularly challenging for natu- ralizing the unity and that they cannot be treated separately. They are the unity of conscious contents at a time and the unity in the sense of a single subject having conscious contents and being able to reflect on them. Chapter 3 describes main conceptual and...