Neuroscience for Beginners

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Re: Neuroscience for Beginners

Postby smiileyjen101 » Tue Aug 20, 2013 11:21 pm

Forgive me a VERY beginner question.

When we're done figuring out the brain do you think we will use it any better?
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Re: Neuroscience for Beginners

Postby ashley72 » Wed Aug 21, 2013 12:30 am

smiileyjen101 wrote:Forgive me a VERY beginner question.

When we're done figuring out the brain do you think we will use it any better?


Yes.
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Re: Neuroscience for Beginners

Postby smiileyjen101 » Fri Sep 20, 2013 6:48 am

Guess we're not 'done' yet....


Coma: Researchers Observe Never-Before-Detected Brain Activity

Sep. 18, 2013 — Researchers from the University of Montreal and their colleagues have found brain activity beyond a flat line EEG, which they have called Nu-complexes (from the Greek letter n).

According to existing scientific data, researchers and doctors had established that beyond the so-called "flat line" (flat electroencephalogram or EEG), there is nothing at all, no brain activity, no possibility of life.

This major discovery suggests that there is a whole new frontier in animal and human brain functioning."


More 'explanation' - which I kind of get, maybe, maybe not, not sure yet, and 'data that I have NO IDEA what they're saying... at

http://www.sciencedaily.com/releases/20 ... 180246.htm



If anyone could translate what it means that would be lovely.
Particularly --- is it 'below' or 'in' the reptilian functioning?
Are / would the 'patient'/s have any recall?

- flat out - does this have any implication for nde awareness studies?
I realise it probably doesn't, or they'd likely have named it Omega... would/n't they?


(..... are we there yet?... no?... sigh....
Our rights start deep within our humanity; they end where another's begin~~ SmileyJen
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Re: Neuroscience for Beginners

Postby smiileyjen101 » Fri Sep 20, 2013 7:41 am

Okay, found another 'explaining of it'.


"Flat line was the deepest known form of coma," said study researcher Florin Amzica, neurophysiologist at Université de Montréal.

The new study shows "there's a deeper form of coma that goes beyond the flat line, and during this state of very deep coma, cortical activity revives," Amzica said. He noted the findings apply to patients in a medically induced coma with healthy brains that are receiving blood and oxygen. The conclusions may not extend to cases of comatose patients who have suffered major brain damage, he said.

The newly discovered coma state is characterized by electrical waves called Nu-complexes that are unlike other waveforms generated by the brain during known coma states, sleep or wakefulness. These waves originate in a deep brain region called the hippocampus, and then spread across the cortex (the brain’s outermost layer), according to the study.

The new findings came from a serendipitous observation in a patient who was in a deep coma, and receiving powerful epilepsy medication required to control his convulsions. EEG recordings of his brain's electrical activity showed peculiar and unexplainable waveforms, the researchers said. [10 Things You Didn't Know About the Brain]

Using anesthetic drugs, the researchers recreated the patient's state in cats. When the cats reached the flat-line coma stage, the researchers increased the anesthetic's dose, and observed brain activity re-emerging in cats.

It is still unclear how the activity in neurons in the hippocampus can spread throughout the brain, the researcher said. One possible scenario is that silencing the brain even more may ease the control over neurons in the hippocampus that other brain areas normally maintain.

"The more the brain is unconscious, the less this activity is disturbed," Amzica said. The activity in the hippocampus then has more potential to become strong enough to spread into other areas, he said.

and more at...
http://www.livescience.com/39761-brain- ... -coma.html


I cannot help but wonder what Dr Eben Alexander will make/think of this.

We are (at least) heading in the right direction. :D
Our rights start deep within our humanity; they end where another's begin~~ SmileyJen
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Re: Neuroscience for Beginners

Postby ashley72 » Wed Mar 05, 2014 10:07 pm

A list of popular Neuroscience books.

https://www.goodreads.com/shelf/show/neuroscience
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Re: Neuroscience for Beginners

Postby Sighclone » Thu Mar 06, 2014 7:37 pm

Thanks, ash - great resource...I ordered one already.

Andy
A person is not a thing or a process, but an opening through which the universe manifests. - Martin Heidegger
There is not past, no future; everything flows in an eternal present. - James Joyce
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Re: Neuroscience for Beginners

Postby ashley72 » Mon Apr 07, 2014 2:48 am

I found a website that has a good demonstration of how a representation neural network classifieds "missing" pixels based on actual pixels. This is a feed-forward type where the "weights" between the connections are already wired together.

http://www.heatonresearch.com/ann/classification
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Re: Neuroscience for Beginners

Postby Sighclone » Mon Apr 07, 2014 5:07 am

Oddly enough, the book I ordered was "How We Decide" by Jonah Lehrer. After reading it, I later discovered publisher Houghton Mifflin Harcourt pulled it off the shelves and offered full refunds due to questions about his sources and quotes -- see here: http://www.thedailybeast.com/articles/2 ... tores.html. After enjoying it, now I don't know what was real and what was bogus. "Nature" magazine also reviewed it skeptically.

Andy
A person is not a thing or a process, but an opening through which the universe manifests. - Martin Heidegger
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