Summarizes a theoretical framework and set of hypotheses aimed at accounting for consciousness in neurobiological terms. Discusses the functional neuroanatomy of nuclei in the brainstem reticular formation. Notes that the views presented are compatible with the idea that the reticular formation modulates the electrophysiological activity of the cerebral cortex, but that modulation is placed within the organism's homeostatic regulation. (Author/KB)
Special issue on: "The Cognitive Neuroscience of Consciousness."