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Brain question

popsy

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Jun 19, 2002
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Does anyone know where I can find information about the stages of development and reorganization of the post natal human brain ? I've done a google search and searched this forum. Specifically what I'm looking for is information about the major stages of brain formation and development through adulthood.
 
What are you trying to learn from this? I mean..what good does it do to know that the brain stem started out and then sprouted to where the frontal lobe converged with the anterior..yadda, yadda. What is your mission might I ask?
 
Eos, thanks for the sites. I had already had a look at them. What I want to know more about is the brain reorganization that happens at around age 40 but I can't find any info.
 
Iamme, You'll notice that I wanted info on the *post natal* brain, not the embryonic brain. And why do I want it? Knowledge.
 
try these?

http://www.genomenewsnetwork.org/articles/2004/06/10/brainage.php

http://in.rediff.com/news/2004/jun/11brain.htm
After age 40, they found, about 400 genes showed significant changes in how hard they had been working while the person was alive to instruct cells to make certain proteins. Many of those genes were damaged and could not function properly.
Click to expand...
http://english.people.com.cn/200406/10/eng20040610_145932.html

http://www.leaonline.com/doi/abs/10.1207/s15427617rhd0201&2_4
 
Very interesting. Thanks. But still not what I was looking for. The brain is said to go through a major reorganization at around age 40, being partially responsible for "mid-life crisis". I've read it somewhere, or heard it, but now can't find anything about it. I have observed that it is a time when people are likely to make changes in their lives, not necessarily a crisis, but definitely a time when people will examine their lives more closely. I think it a very useful time which one can use to advantage.
 
Iamme said:
What are you trying to learn from this? I mean..what good does it do to know that the brain stem started out and then sprouted to where the frontal lobe converged with the anterior..yadda, yadda. What is your mission might I ask?
Click to expand...

I think Iamme's reply clearly dictates the line between ignorance and stupidity. I think I'll nominate it for that, even.
 
popsy said:
Very interesting. Thanks. But still not what I was looking for. The brain is said to go through a major reorganization at around age 40, being partially responsible for "mid-life crisis". I've read it somewhere, or heard it, but now can't find anything about it. I have observed that it is a time when people are likely to make changes in their lives, not necessarily a crisis, but definitely a time when people will examine their lives more closely. I think it a very useful time which one can use to advantage.
Click to expand...
Biologically? It's near female menopause (by about ten years) and near a shift in male physiology regarding hormones as well.
with an average age at onset of 51.4 years (1). The endo*crinologic, urologic, and geriatric literatures suggest that a possible male equivalent of menopause exists, denoted by such terms as the "male climacteric," "andropause," "viropause," and "low-testosterone syndrome" (1-6).
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Psychiatry and Hormonal Changes.

Theoretically, it has been linked to the idea that it occurs when the female is of an age to have her first children (or even last children) having children of their own, so here hormonal levels change from attempting to get pregnant herself to generalized caretaking. Again, speculative.

However, I cannot isolate specific anatomical changes that occur especially around forty. The decline in neuronal volume is per year on average with no signatory alteration at that age range.
 
Thanks PatKelley. Apparently then the 'information' that I had was speculation. I understood that the myelination of the brain was completed at around age 40 and that it made a change in the actual biology of the brain. Hmmmm, I guess one can't believe everything one hears. ;-)
 
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