Now, i don't have to think that I have to pass on the information and links. My two cents here, at Mindscapes.
Mindscapes is on a two month hiatus, till January.
Blog posts will be publicly available after the break, as mentioned earlier. See you all then, once the present work load is over.
Warmly,
-sumesh
Repeats, reruns, repetitions and repeats (10/17/09)
Why do we love repetition? And why do we need it? This week (in an all-new episode), we look at the joys and trials of repeating things.
Right click to Download Repeats, reruns, repetitions and repeats (10/17/09)
[mp3 file: runs 1:26:44]
CBC Radio One, "Definitely Not the Opera."
Show entitled:
"Repeats, reruns, repetitions, and repeats."
Interview with Professor Laura-Ann Petitto, Diana Deutsch and others. October 17, 2009.
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q2cfestival.com
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News and Views
Nature 461, 50-51 (3 September 2009) | doi:10.1038/461050a; Published online 2 September 2009
Neuroscience: Persistent feedback
Top of pageAbstract
How does the brain remember the consequences of our actions? Persistent activity in the prefrontal cortex and basal ganglia may be crucial for learning correct actions through experience.
Do you jump out of bed when you hear the alarm clock ring in the morning? Or do you push the snoozer? Your choice will depend on the consequences of similar actions in the past. Typically, if an action triggered by a stimulus leads to a pleasant outcome, such as food or safety, we are more likely to perform the same action on re-encountering the same stimulus1. Therefore, a fundamental building block in shaping behaviour is the relationship between a sensory event, a chosen action and its consequences, but how the brain stores this information is still a matter of speculation. A recent paper in Neuron by Histed et al.2 sheds some light on these mechanisms by showing that neurons in the primate prefrontal cortex and basal ganglia display persistent activity that is related to the outcomes of previous actions.
A repost...
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Thanks to Tweetlinks, 10-25-09 [A Blog Around The Clock]
from ScienceBlogs : Combined Feed by Coturnix
Visual representation of dinosaurs as it changed over the years
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