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Brain Cells Observed Summoning a Memory
Anti-Globalism writes "Scientists have for the first time recorded individual brain cells in the act of summoning a spontaneous memory, revealing not only where a remembered experience is registered but also, in part, how the brain is able to recreate it."
What does a memory of what a memory being recovered look like?
I sometimes have epileptic seizures which make me spontaneously remember past events. Sometimes it causes me to recall events which may not have happened. I am literally processing garbage data.
The seizure often interferes with the recording of memory, probably because it is messing with the replay of memory at the same time, so it is difficult to report exactly what the experience consists of after the event, beyond a simple outline.
http://michaelsmith.id.au
To summarize the article, researchers have determined that the neurons which are fired when an event is experienced are the same neurons that are fired when it is remembered. That's all it says. It does not say that our experiences and memories don't independently exist, just that they correlate with neural activity.
I just want to know when I will be able to download into my mind knowledge. I'll take an order of all the languages in the world, with a side of advanced mathematics and physics, and maybe some animal science for dessert.
I don't like Linux. This doesn't make me a troll.
September 5, 2008
For the Brain, Remembering Is Like Reliving
By BENEDICT CAREY
Scientists have for the first time recorded individual brain cells in the act of summoning a spontaneous memory, revealing not only where a remembered experience is registered but also, in part, how the brain is able to recreate it.
The recordings, taken from the brains of epilepsy patients being prepared for surgery, demonstrate that these spontaneous memories reside in some of the same neurons that fired most furiously when the recalled event had been experienced. Researchers had long theorized as much but until now had only indirect evidence.
Experts said the study had all but closed the case: For the brain, remembering is a lot like doing (at least in the short term, as the research says nothing about more distant memories).
The experiment, being reported Friday in the journal Science, is likely to open a new avenue in the investigation of Alzheimer's disease and other forms of dementia, some experts said, as well as help explain how some memories seemingly come out of nowhere. The researchers were even able to identify specific memories in subjects a second or two before the people themselves reported having them.
"This is what I would call a foundational finding," said Michael J. Kahana, a professor of psychology at the University of Pennsylvania, who was not involved in the research. "I cannot think of any recent study that's comparable.
"It's a really central piece of the memory puzzle and an important step in helping us fill in the detail of what exactly is happening when the brain performs this mental time travel" of summoning past experiences.
The new study moved beyond most previous memory research in that it focused not on recognition or recollection of specific symbols but on free recall â" whatever popped into people's heads when, in this case, they were asked to remember short film clips they had just seen.
This ability to richly reconstitute past experience often quickly deteriorates in people with Alzheimer's and other forms of dementia, and it is fundamental to so-called episodic memory â" the catalog of vignettes that together form our remembered past.
In the study, a team of American and Israeli researchers threaded tiny electrodes into the brains of 13 people with severe epilepsy. The electrode implants are standard procedure in such cases, allowing doctors to pinpoint the location of the mini-storms of brain activity that cause epileptic seizures.
The patients watched a series of 5- to 10-second film clips, some from popular television shows like "Seinfeld" and others depicting animals or landmarks like the Eiffel Tower. The researchers recorded the firing activity of about 100 neurons per person; the recorded neurons were concentrated in and around the hippocampus, a sliver of tissue deep in the brain known to be critical to forming memories.
In each person, the researchers identified single cells that became highly active during some videos and quiet during others. More than half the recorded cells hummed with activity in response to at least one film clip; many of them also responded weakly to others.
After briefly distracting the patients, the researchers then asked them to think about the clips for a minute and to report "what comes to mind." The patients remembered almost all of the clips. And when they recalled a specific one â" say, a clip of Homer Simpson â" the same cells that had been active during the Homer clip reignited. In fact, the cells became active a second or two before people were conscious of the memory, which signaled to researchers the memory to come.
"It's astounding to see this in a single trial; the phenomenon is strong, and we were listening in the right place," said the senior author, Dr. Itzhak Fried, a professor of neurosurgery at the University of California, Los Angeles, and the University of Tel Aviv.
His co-authors were Hagar Gelbard-Sagiv, Michal Harel and Rafael Malach of
We're one step closer to a "Forget your first sexual encounter" pill.
As far I know, not only religious people use the term "soul". Psychologists use it too, although in a a little bit different meaning as the various afterlife-guys.
A good education is a bit like a STD - it makes you unsuitable for a lot of jobs and gives you a desire to spread it.
Yes, muscle memory is stored in the cerebellum, not the cerebrum. That's why you don't have to "think" about it to do it.
Most of the martial arts training is about moving the information from the latter to the former.
I think that for some people the 'soul' theory is the reason they trust religion, not the other way around.
You'll have to agree that it is a bit depressing knowing for certain that your existence is just the few years you spend 'alive' and after that it's all gone. And for some, it's too depressing.
Humans need to know they'll live on somehow, that their lives have some meaning. And if you're not famous enough to hope for historical eternal life, than soul is what you have left.
Actually, I find the thought of simply ceasing to exist not that bad; although I seriously don't want to die (and thus are transhumanist), believing in no afterlife were you would be judged gives you a nice feeling of freedom - while religious people usually try to avoid a lot of things since they want to reach heaven (or whatever else they believe in how they will be rewarded for a life devoted to their god[s]), I act on my own moral criterias without any pressure, being free to choose what is right and what not on my own.
Though yes, I fully agree with you.
A good education is a bit like a STD - it makes you unsuitable for a lot of jobs and gives you a desire to spread it.
Neo: I know Kung-Fu.
Morpheus: Show me.
Neo: It starts at 0x21b3a5da.
Maybe he meant 'Bestiality'?
and several other Asian terms.
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I've read a number of books which discuss in detail the fact that memory is stored non-locally, in a method similar to the way a hologram stores information non-locally. The book 'The Holographic Universe' is the most recent example that I've read. It's a fascinating book - well worth a read. In fact I've read it twice now. With respect to memory, it goes on to say that in experiments with mice, researchers said they were incapable of destroying a memory of how to complete a maze by surgically removing brain tissue. The more they removed, the more foggy the memory appeared, but it never disappeared. This strongly backs the holographic storage method that the book postulates.
If these scientists think they've seen an individual brain cell recall a memory, then I think they're horribly mistaken.
For me, it's not depressing at all.
I didn't come into existence until 1986. For billions of years, I wasn't the least bit upset about it.
In other words, if "life" after death is the same as "life" before life, then there is little I have to worry about.
South Korea's also got Seoul.
I once heard a bit on the rise of science against religion. The crux of the argument was that science should be viewed and approached with an eye more toward humanism.
In the Dark Ages, God was viewed as someone who controlled everything. If something bad happened, there was a reason. If something good happened, there was a reason. Priests where the ones who understood that pattern, and each of us had a friend looking down benevolently (overall) to take care of us.
The rise of science began to make the world a hostile, unpredictable place. Of course, science must studied, information gathered, and one day man could make sense of his (now inscrutable) destiny and place in the universe.
I believe the argument went that this shift in thinking, from having a plan to not having any has caused a lot of strife. Of course, we're more rational (some of us) but this does not change the fact that we often feel alone and insignificant, whirling through the ether.
The solution was to try and find a way to help people view science as less about cold calculation, but more as a friend, a helpful and predictable Cosmic Hand that doesn't flip us off, but rather is working behind the scenes, as God once did, to keep everything working in The Bigger Plan.
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