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[ over time, across species, and cross-platform ]
Chris Chatham is a grad student at the University of Colorado, Boulder.
January 31, 2007
Normal children - and adult patients with frontal damage - frequently have difficulty changing their responses to stimuli when the correct response changes. This difficulty is often considered an inability to switch between rules, but might result not so much...
Posted by Chris Chatham at 9:47 AM • 0 Comments • 0 TrackBacks
January 30, 2007
If a large object were to suddenly disappear from your field of view, you might expect that you would notice its disappearance. However, change detection research has demonstrated that we have a surprisingly poor ability to detect even large changes...
Posted by Chris Chatham at 10:13 AM • 5 Comments • 0 TrackBacks
[ Link Posts ]
Encephalon 15 has been posted. Check it out!...
Posted by Chris Chatham at 9:42 AM • 0 Comments • 0 TrackBacks
January 29, 2007
[ Cognitive Neuroscience, Developmental Psychology ]
If presented with a novel and a familiar object, infants strongly prefer to touch and look at novel objects. However, if these objects are then obscured - in the dark, or by an occluding screen - infants tend to reach...
Posted by Chris Chatham at 10:11 AM • 1 Comments • 0 TrackBacks
January 26, 2007
Yesterday I reviewed several detailed architectural asymmetries between the right and left hemispheres, but presented little information on asymmetries in long-range connectivity. Recent advances in a form of magnetic resonance imaging called "diffusion tensor MRI" have made possible whole-brain imaging...
Posted by Chris Chatham at 10:04 AM • 0 Comments • 0 TrackBacks
January 25, 2007
In their 2003 Trends in Neurosciences article, Hutsler & Galuske refer to the well-known history of hemispheric asymmetry research as too focused on large-scale morphological differences, at the expense of microanatomical and connectivity differences. An understanding of these more...
Posted by Chris Chatham at 11:17 AM • 0 Comments • 0 TrackBacks
January 24, 2007
"Imagine that the U.S. is preparing for the outbreak of an unusual Asian disease, which is expected to kill 600 people. Two alternative programs to combat the disease have been proposed." The first program will save 200 people. The second...
Posted by Chris Chatham at 10:36 AM • 5 Comments • 0 TrackBacks
January 23, 2007
Although grammar is usually considered the "uniquely human" aspect of language, and the capacity to use primitive symbols is thought to be common among primates, high-level cognition is nonetheless strongly impacted by the use of symbols. For example, symbols can...
Posted by Chris Chatham at 9:26 AM • 0 Comments • 0 TrackBacks
January 22, 2007
[ Link Posts ]
Gyorgy Buzsaki, author of "Rhythms of the Brain," agreed to answer 10 questions posed by me and amnestic at GNXP. Covers computational modeling, 1/f noise, cortical homogeneity, and much more. A steeper forgetting curve among those with a college education?...
Posted by Chris Chatham at 10:07 AM • 0 Comments • 0 TrackBacks
January 19, 2007
[ Cognitive Neuroscience, Developmental Psychology ]
Although even the youngest infants have some ability to remember the past, this ability increases in both its reliability and its "temporal extent" with age. Such differences could result from changes in any of memory's constituent processes, including encoding, consolidation,...
Posted by Chris Chatham at 10:47 AM • 0 Comments • 0 TrackBacks
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Corpus Callosum 11.05.2009
Starts With a Bang 11.04.2009
