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Chris Chatham is a grad student at the University of Colorado, Boulder.
April 29, 2009
[ 
, Cognitive Neuroscience, Computational Modeling ]
Every now and then, I read some science from some other dimension. That is, the methods are so unusual, the relevant theories so fringe, or the conclusions so startling that I feel like the authors must be building on work...
Posted by Chris Chatham at 12:25 PM • 5 Comments • 0 TrackBacks
April 24, 2009
[ , Cognitive Neuroscience ]
There are three on-off light switches on the wall of the first floor of a building. One of the switches is initially off and controls an incandescent bulb in a lamp on the third floor of the building. The other...
Posted by Chris Chatham at 2:17 PM • 23 Comments • 0 TrackBacks
April 23, 2009
[ , Artificial Intelligence, Cognitive Neuroscience, Computational Modeling ]
Most computational models of working memory do not explicitly specify the role of the parietal cortex, despite an increasing number of observations that the parietal cortex is particularly important for working memory. A new paper in PNAS by Edin et...
Posted by Chris Chatham at 11:26 AM • 0 Comments • 0 TrackBacks
April 22, 2009
[ , Cognitive Neuroscience ]
A number of previous behavioral and neuroimaging experiments, as well as computational models, support the idea that people can filter the contents of memory and perception so as to focus on only the information that's currently relevant. For example, in...
Posted by Chris Chatham at 10:27 AM • 1 Comments • 0 TrackBacks
April 21, 2009
[ , Cognitive Neuroscience, Computational Modeling ]
One theoretical model of the prefrontal cortex posits that we can achieve goal-directed behavior via "biased competition" - that is, representations of our current goals and context are maintained in the prefrontal cortex and exert an influence on downstream areas,...
Posted by Chris Chatham at 11:27 AM • 0 Comments • 0 TrackBacks
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Starts With a Bang 11.04.2009
