tag:blogger.com,1999:blog-22093933.post5097798523848215053..comments2008-07-25T05:55:48.927-05:00Derichttp://www.blogger.com/profile/16617204535017208765noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-22093933.post-1601202010236279562008-07-24T21:46:00.000-05:002008-07-24T21:46:00.000-05:00good stuff. i am so glad that they published this review of the default network. its still fairly ambiguous, however, it provides enough info to start looking at it in the pathology context, where it may be instrumental in the search for new cures and treatments.AcousticSurfhttp://www.blogger.com/profile/09822421372263890053noreply@blogger.comtag:blogger.com,1999:blog-22093933.post-76614493185072658192008-06-29T08:21:00.000-05:002008-06-29T08:21:00.000-05:00@Sam<BR/>It's true that identifying a network concerned with something as general as "internalized" thought lacks specific mechanistic explanations. However, the first step toward mechanistic explanations of neural and/or mental phenomena involves just such an identification of the components involved. Buckner et al. are pointing out the mental components/variants of internalized thought, while identifying the subset of brain tissue (the neural components) involved in internalized thought (3 billion neurons is actually a small portion of the brain).Mikenoreply@blogger.comtag:blogger.com,1999:blog-22093933.post-90089179379058596662008-06-27T06:14:00.000-05:002008-06-27T06:14:00.000-05:00Seems a waste of time to me - what on earth is the point of examining a brain network concerned with something as general as "internalized" thought processes? Surely "internalized" thought processes represent a massive portion of our total brain activity, certainly one that we'd expect to be performed by more than one dedicated network?<BR/> <BR/>We're just no way near good enough at understanding cortical function (or at interpreting neuroimaging data, for that matter) to be studying higher-order processes in this way. So we find out that approximately one third of the cortex (about 3 billion neurons) light up when we are "envisioning the future" - so what? How exactly does this finding help us in understanding what these 3 billion neurons are doing?Samhttp://www.blogger.com/profile/07199751822959922899noreply@blogger.comtag:blogger.com,1999:blog-22093933.post-76698810709717755982008-06-26T10:11:00.000-05:002008-06-26T10:11:00.000-05:00Mutations in sperm of older men causes faulty brain development leading to autism, schizophrenia and much later to Alzheimer's.<BR/>http://www.news.com.au/heraldsun/story/0,21985,23849196-5000117,00.html<BR/><BR/>http://autism-prevention.blogspot.com/concerned hearthttp://www.blogger.com/profile/14987948292416367555noreply@blogger.com