Some interesting reading:

• Crick, F. & Koch, C. (2000). The unconscious homunculus. In Metzinger, T. (Ed.) The Neuronal Correlates of Consciousness. MIT Press: Cambridge, MA.
• Noelle, D.C. (2001). Exorcising the homunculus Free Inquiry, 21 (2). Magazine of the Council for Secular Humanism.