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Chris Chatham is a grad student at the University of Colorado, Boulder.
December 31, 2007
Originally posted on 12/16 2006: The term "executive function" is frequently used but infrequently defined. In attempting to experimentally define executive functions in terms of their relationship to age, reasoning and perceptual speed, Timothy Salthouse reviewed the variety of verbal...
Posted by Chris Chatham at 3:37 PM • 1 Comments • 0 TrackBacks
December 13, 2007
[ 
, Cognitive Neuroscience ]
If you encounter a difficult situation, you may be extra careful afterwards, even in a different or unrelated situation. This intuitive statement has recently been confirmed in a laboratory task, and extended to show that such carry-over "conflict adaptation" effects...
Posted by Chris Chatham at 1:46 PM • 2 Comments • 0 TrackBacks
December 10, 2007
[ , Cognitive Neuroscience ]
Is there a basic "computational unit" of the neocortex? In contrast to subcortical regions, neocortical architecture seems fairly regular and matrix-like - leading to it's other name, "isocortex." While there are many contenders for the title of the "canonical circuit"...
Posted by Chris Chatham at 12:19 PM • 1 Comments • 0 TrackBacks
December 4, 2007
[ BPR , Cognitive Neuroscience ]
How does memory help to accomplish moment-to-moment goal-directed action? Classic accounts, such as Baddeley's working memory model, suggest that there are separate storage and processing ("executive") mechanisms, whereas newer accounts (proposed by a variety of researchers) propose that storage and...
Posted by Chris Chatham at 11:11 AM • 3 Comments • 0 TrackBacks
December 3, 2007
[ , Cognitive Neuroscience ]
Your IQ can be reliably predicted by simple reaction time tasks - perhaps even more reliably than with much more complex cognitive tasks. This surprising psychometric fact has led to the belief in human "processing speed." In the same way...
Posted by Chris Chatham at 1:53 PM • 7 Comments • 0 TrackBacks
