1. Armstrong, David. 1997. What is Consciousness? In The nature of consciousness: philosophical debates, eds. Ned Block, Owen Flanagan, and Güven Güzeldere, 721–728. MA: MIT.
2. Bayne, Tim, and Michelle Montague, eds. 2011. Cognitive Phenomenology. Oxford: Oxford University Press.
3. Carruthers, Peter. 2000. Phenomenal Consciousness: A Naturalistic Theory. Cambridge: Cambridge University Press.
4. Carruthers, Peter. 2004. HOP over FOR, HOT theory. In Higher-Order Theories of Consciousness: An Anthology, ed. Rocco Gennaro, 115–135. Amsterdam/Philadelphia 2004.
5. Castañeda, Hector-Neri. 1989. Thinking, language, and experience. Minneapolis: University of Minnesota Press.