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Global Workpace Theory: A quick tutorial intro. Bernard J. Baars The Neurosciences Institute San Diego, Calif. See: www.nsi.edu/users/baars www.bernardbaars.pbwiki.com for downloadable articles, demos and discussion. (Please feel free to contact the author.).
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Global Workpace Theory: A quick tutorial intro. Bernard J. BaarsThe Neurosciences InstituteSan Diego, Calif.See: www.nsi.edu/users/baarswww.bernardbaars.pbwiki.comfor downloadable articles, demos and discussion.(Please feel free to contact the author.) @, B.J. Baars, 2008
In the Theater of Consciousness - a useful theoretical metaphor --- only the bright spot on stage is conscious (because consciousness is very limited in capacity) --- sensory inputs compete for access to the conscious bright spot; so do output plans; --- the "theater stage" corresponds to Working Memory; --- all other parts are unconscious, including longterm memory, the automatic processes of language, and events going on backstage. (The capacity of unconsciousness is enormous.) -- the theater metaphor has been turned into several testable models. @, B.J. Baars, 2008 From Carl Carpenter, A New Model of Consciousnes, Sci& Con Rev.2006.
Selective attention controls the spotlight that selects what will be in the bright spot on stage Backstage is unconscious The audience is unconscious @, B.J. Baars, 2008
Here is a brain version of global workspace theory: Prediction: Conscious input activates more widely than similar unconscious input. • Notice that there are two sensory inputs (the red and green arrows), and that the winning input evokes widespread "forward" activity in the brain. From Baars & Gage (eds) Cognition, Brain & Consciousness. @, B.J. Baars, 2008
Dehaene et al (2001) experimental design. @, B.J. Baars, 2008
Experimental results: @, B.J. Baars, 2008 From Dehaene et al, 2001
Additional Sources:PubMed, under "global workspace theory."The Association for the Scientific Study of Consciousness.(www.assc.caltech.edu)Downloads available at: www.nsi.edu/users/baarswww.bernardbaars.pbwiki.comBrain studies by Stanislas Dehaene and colleagues: http://www.unicog.org/main/pages.php?page=ConsciousnessComputational simulations by Stan Franklin and colleagues: http://ccrg.cs.memphis.edu/tutorial/index.html @, B.J. Baars, 2008