From Carl Carpenter, A New Model of Consciousnes , Sci & Con Rev .2006.
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@, B.J. Baars, 2008 1 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. 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.). - PowerPoint PPT Presentation
Transcript of From Carl Carpenter, A New Model of Consciousnes , Sci & Con Rev .2006.
@, B.J. Baars, 2008 1
Global Workpace Theory:
A quick tutorial intro.
Bernard J. BaarsThe 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.)
@, B.J. Baars, 2008 2From Carl Carpenter, A New Model of Consciousnes, Sci & Con Rev.2006.
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 3
Backstage is unconscious
The audience is unconscious
Selective attention controls the spotlight that selects what will be in the bright spot on stage
@, B.J. Baars, 2008 4
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 5
@, B.J. Baars, 2008 6
Dehaene et al (2001) experimental design.
@, B.J. Baars, 2008 7From Dehaene et al, 2001
Experimental results:
@, B.J. Baars, 2008 8
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.com
Brain studies by Stanislas Dehaene and colleagues: http://www.unicog.org/main/pages.php?page=Consciousness
Computational simulations by Stan Franklin and colleagues: http://ccrg.cs.memphis.edu/tutorial/index.html
