Spontaneous pattern formation: what visual migraines and hallucinations tell us about the brain
Jack Cowan's Redwood Center for Theoretical Neuroscience lecture, "Spontaneous pattern formation in large scale brain activity: what visual migraines and hallucinations tell us about the brain". Uploading to youtube so I can more easily link to specific time stamps within it.
See also: http:// www.scholarpedia.org/article/User:Jack_D._Cowan/Proposed/Models_of_visual_hallucinations (not a real URL because youtube decided my 2006 account can't create links anymore)