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Sleep Deprivation Increases Brain Activity

Hemos posted more than 14 years ago | from the this-explains-my-college-years dept.

Science 225

SL33Z3 writes "Researchers at the University of California at San Diego have found increased brain activity in areas of the brain that otherwise stay inactive. The longer the students went without sleep, the more activity was found. Research found students to have better recollection after long periods of sleep deprivation. Check out the release here. " Heck, combine this with the news about caffeine and I'm all set!

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Re:OT (0)

Anonymous Coward | more than 14 years ago | (#1283300)

That's more than likely because it takes a xx minutes to actually read the article and previous posts seem to be just troll bait from only reading the header at the top of the thread.

Re:Hmmm... (0)

Anonymous Coward | more than 14 years ago | (#1283301)

2 liters are for pussies, everyone knows to get the 30-liters [theonion.com]

Cool (0)

Anonymous Coward | more than 14 years ago | (#1283303)

I'll keep up the chinese water torture now.

thank you.

Can't sleep - Clowns'll eat me. (0)

Anonymous Coward | more than 14 years ago | (#1283304)

`.^^~~~^^`
^/C%G88888gg0000B0GV
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V3333333%%%%GG8888gg000BB$$$$@@3
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Re:Can't sleep - Clowns'll eat me. (0)

Anonymous Coward | more than 14 years ago | (#1283305)


`.^^~~~^^`
^

Science: Sex Deprivation Increases Backed Up Balls (0)

Anonymous Coward | more than 14 years ago | (#1283306)

Posted by Herpesmos on 06:49 PM February 11th, 2000 from the this-explains-my-college-years-spent-with-big-ball s dept.
SL33Z3 writes "Researchers at the University of California at San Diego have found increased backed up balls activity in areas of the scrotum that otherwise stay unbacked up. The longer the students went without sex, the more their balls enlarged with unused semen. Research found students to have better weigthed balls after long periods of sex deprivation. Check out the release here. " Heck, combine this with the news about anal plugs and I'm all set!

( Read More... )

This does not mean that you always do better (0)

Anonymous Coward | more than 14 years ago | (#1283307)

I believe that I read an article on this in yesterdays news paper. (yes, some of us read the news in dead tree form still) It said something along the lines of while there was increased activity in the certain brain areas and that one area associated with "filing" information was active that is not usually active during this type of task this does not mean that you always preform better than a rested person does. Also preformance dropped in activities not associated with straight memorization such as math and science. I would think this applies to many of us in the technology department.
I would be quite surprized if there were any major benifits to this new knowledge.

On a completely unrelated note I value anonymous cowardizm because it allows us to post things which are simply our opinions while avoiding being publicly known as an idiot if you say something stupid and then regret it later. A community has a much longer memory than an individual.

Slashdot is irresponsible.. (0)

Anonymous Coward | more than 14 years ago | (#1283308)

This site adheres to absolutely no journalistic standards. I wonder how many people didn't bother to read the article and now believe sleep deprevation will improve memory recollection.

Hey Rob! (0)

Anonymous Coward | more than 14 years ago | (#1283309)

BTW, Thanks for losing the Java banners.

:)

Re:NO wonder why.. (0)

Anonymous Coward | more than 14 years ago | (#1283313)

Funny link, as well as the others under Humor.

BTW, the FMLA thread was interesting. Keep up the effort, seems like it's working.

IDEA (0)

Anonymous Coward | more than 14 years ago | (#1283314)

This could be caused by some of the brain cells recovering, while others activate to take up the load. I still feel that early to bed, early to rise, makes a man healthy, wealthy, and wise.

This is hardly funny (0)

Anonymous Coward | more than 14 years ago | (#1283315)

As a member of the American Coulrophobia Association (ACA, a NIMH Affiliate Organization), I protest your snide remark about clowns.

Coulrophobia, or the fear of clowns, is a very real disorder.

Thousands of Americans, perhaps even some you know, live in constant, petrifying fear of clowns. Some express mortal fear of red, squishy noses. Others wake up each night screaming, fleeing from ever-advancing armies of rapist clowns clad in striped yellow pants.

This is no joking matter. Please respect the feelings of coulrophobes.

Sincerely,

Mathias W. Zuckerman, PhD
Principal Scientist
American Coulrophobia Association, NIMH

Doh, article doesn't say memory is improved (0)

Anonymous Coward | more than 14 years ago | (#1283316)

Can't you guys read?

No where in the article does it imply that:

"Research found students to have better recollection after long periods of sleep deprivation"

Haven't had enough sleep eh?

Doh!

Re:Oops (0)

Anonymous Coward | more than 14 years ago | (#1283323)

That's what whappens when you are an exec at a fortune 10 company... POOF!

Re:Crystal Meth increases brain activity too. (0)

Anonymous Coward | more than 14 years ago | (#1283324)

I agree. I suffer from chronic fatigue syndrome so I know what sleep deprivation is all about. I also know that your (my) brain seems more active - but its also all fucked up. it going like mad but hasn't got a clue where its going and cant remember where its been. If you think you'll be more productive after a little sleep deprivation your dead wrong (well if you do this on a regular basis anyway). Been there (10yrs ago) done that and still haven't recovered.

Re:So tell me...... (0)

Anonymous Coward | more than 14 years ago | (#1283333)

I think they're all dead.

Someone must have given Anonymous Coward all the mod points again. Oh boy...

---
Moderate the good posts up!
(isn't that still in the guidelines?)

Re:Yeah, so? (0)

Anonymous Coward | more than 14 years ago | (#1283334)

So, would this explain the dancing neon chipmunks?

I've been putting in a lot of late/long hours on several projects since before Christmas and I've found that if I don't let myself get too tired, I can take a break, sit back in a comfortable chair and let myself drift off for about fifteen minutes, then I'm good for another couple of hours. I've been able to work for about twenty-four hours at a stretch before the neon chipmunks show up and I look up at the console and see random garbage that I've typed in. That's when I know it's time to go to bed. This is the worst part--after depriving myself of sleep for a long period, when I finally start to drift off, I experience brief, vivid and frightening hallucinations--usually accompanied by loud noises and falling sensations. It almost feels like slamming on the brakes on a high-speed freight train. The crash isn't fun, but I've gotten a lot done lately.

This isnt good news. (0)

Anonymous Coward | more than 14 years ago | (#1283335)


I think I can speak from experience on this one.

What happens in the brain during sleep deprivation is pretty simple -- scattered reigons of the brain become deprived of transmitter substance, and one neurotransmitter in particular called serotonin. Its a chemical that sits in the gap between synapses. Every time that neuron fires an impluse, some of the serotonin gets used, some of it gets re-used, and some of it breaks down.

Lets say you stay up late one or two nights in a row. Your brain is smart enough to redirect traffic through reigons of your brain which don't have depleted seritonin levels, in order to give the worn-out neurons a chance to recouperate. A regular sleeping schedule and a good diet will help that process along. If you abuse it, and continually push 20-22 hour days fuelled on caffiene, here's what happens to you.

Over long periods of time without adequate sleep, your brain's ability to produce serotonin will begin to decrease rapidly. It will find fewer and fewer ways to route traffic, since your "worn-out" neurons remain worn out..You aren't giving them enough downtime to self-repair. Caffiene, and other serotogenic agents will only aggrevate the problem by causing what little serotonin you *do* have to decay faster.

The end result? You can expect one or more of the following list of fun symptoms when your serotonin levels fall too low: Depression, anxiety attacks, loss of apetite, diarrhea, hysteria, mania, paranoia, migraine headaches, hypersensitivity to light and sound, memory loss, mild visual hallucinations and psychosis. If you really want to go for the gold cup, you can look forward to self-mutilation, panic attacks, suicidal ideation,
and an assortment of moderate to severe psychotic behaviors, all of which will take you months of drug therapy to correct.

So..drink up, kids! sleep deprivation is good for you! ...Yeah, right.

The misinformed people above me (0)

Anonymous Coward | more than 14 years ago | (#1283337)

Everyone seems to believe that sleep is for the brain, but the brain dosen't need sleep, the body does. How else do you explain dreams? If the brain is truly incapable of rational thought when one is tired, then why does the brain exercise itself through dreams?

New study (0)

Anonymous Coward | more than 14 years ago | (#1283338)

grits depravation discovered to lead to loss of motor functions. to prevent this, doctors recommend you pour a hot bowl of grits down your pants as often as possible. thank you.

Crystal Meth increases brain activity too. (0)

Anonymous Coward | more than 14 years ago | (#1283339)

Just think, you can work for 7 or more days straignt with no sleep... when you finally do crash, though, ...

ROTFLAMO (0)

Anonymous Coward | more than 14 years ago | (#1283341)

You Sir, are the master!!

much worse side effects (0)

Anonymous Coward | more than 14 years ago | (#1283342)

severe sleep depravation is bad for your health. much worse than the non-existant side effects of LSD. maybe do some reading, drugs are an interesting subject.

Transfering thought (0)

Anonymous Coward | more than 14 years ago | (#1283343)

great to drinking caffine, makes me think better, and transfers most of my thinking from my testies to my brain

Linux sucks (0)

Anonymous Coward | more than 14 years ago | (#1283346)

You are all a bunch of linux-obessed geeks.

REAL NEWS (0)

Anonymous Coward | more than 14 years ago | (#1283347)

Interesting. CmdrTaco wonders if Microsoft was behind the DOS attacks, but when questions about Windows 2000 compatability arise, causing Microsoft to lose value on the stock exchange (and causing the NASDAQ & DOW JONES indices to drop) not a word is mentioned.

This seems a little bit more newsworthy to me.

PS - dumping moderators was a great idea. Tee stories still suck, but there are fewer complaints about the stupid moderators :-)

similar case (0)

Anonymous Coward | more than 14 years ago | (#1283351)

I remember hearing about some medical cases where people suffered severe brain damage (like from being shot) and never slept after it happened. They all seemed to have pretty normal lives except for that :)

Too much sleep? (1)

Mathieu Lutfy (69) | more than 14 years ago | (#1283352)

How about too much sleep? From personal experience, if I sleep more than 7 hours, I'll feel lazy the day after. I find a good night of sleep is around 6 hours, if that's what I get, I'll be in great shape for coding.

Although I get an average of 5 hours.. but hey, combine that with coffee and you've got maximisation of time and efficiency :)

Re:"Unrecoverable brain damage" (1)

Electron (598) | more than 14 years ago | (#1283353)

Where did you read that? It is totally incorrect - acethylcholine is a neurotransmiter, like serotonin and dopamine, for instance, and it is the one responsible for muscle contraction (and regulation of heart rate). It doesn't come in food, it is syntesized at the synaptic terminal from choline and acethyl coenzime A.

And about cells dying and others taking place - that's also not true. Neurons have several axons forming synapses, and if one dies, the axons go with it - if one were to take it's place, it would have lost all the connections of the previous one. And since learning, memory, our personality, etc, is all due to the way the various axons are arranged, after some time we'd have these parameters altered: different personality, loss of memory, etc, and that does NOT happen.
Sure, brain cells die, but with aging, and they are not replaced with new ones.

-- Electron

Re:Crystal Meth increases brain activity too. (1)

pb (1020) | more than 14 years ago | (#1283354)

Yeah, but you think you're doing a great job too, when in fact you're probably not doing as well as you thought.

But yeah, that would scare the hell out of me. Four days on and three days off? Geez, how long can someone's body take punishment like that?
---
pb Reply or e-mail; don't vaguely moderate [152.7.41.11] .

Yeah, so? (1)

pb (1020) | more than 14 years ago | (#1283355)

Sleep deprivation also causes hallucinations.

Severe sleep deprivation resembles an acid trip.

More brain activity is not always a good thing, unless you like having your neurons cross-linked.
---
pb Reply or e-mail; don't vaguely moderate [152.7.41.11] .

Re:Longest without sleep? (1)

pb (1020) | more than 14 years ago | (#1283356)

60 hours of no sleep, 6 hours of sleep, and another 60 hours of no sleep...

I was trying to stay awake for the whole week, and failed. But I had a lot of fun, anyhow...
---
pb Reply or e-mail; don't vaguely moderate [152.7.41.11] .

Sleep Deprivation = Brain Activity = Hallucination (1)

Ken Broadfoot (3675) | more than 14 years ago | (#1283357)


The extra activity is hallucinations..

Ask any Crack/Meth/Coke-head.

Here's something I noticed (1)

Genom (3868) | more than 14 years ago | (#1283358)

*Mild* sleep deprivation seems to enhance creativity -- but there's a falloff rate there...

You know that if you stay up past the point that you "get sleepy" that eventually the sleepiness wears off, and you get what is commonly referred to as a "second wind". This process seems to continue (at least for me) in a cycle (get sleepy, get nth wind, get sleepy, get n+1th wind, etc...) where the lengths of time between periods of sleepiness (aka: the "winds") get shorter, and the periods of sleepiness get longer.

Now, I've noticed that at some point, (generally halfway through either the 2nd or 3rd wind) I seem to be a heck of a lot more creative. I also get a heck of a lot more work done.

But, it gets increasingly hard to concentrate on a single task - my mind tends to wander a lot as the condition wears on.

Coffee (and I'm assuming other stimulants as well) seems to have a lengthening effect on the "winds", but when it wears off, the "winds" shorten dramatically. (sort of like what we're all expecting to happen to Dick Clark - at some point he's going to age 60-100 years in a matter of minutes...I hope he's on camera...)

This is just personal observation, of course, and has absolutely no medical founding (IANAD)

(Sort of like the observastion that while I don't tend to eat red meat much, I crave it when I'm injured - almost like I'm looking for raw materials to rebuild the broken parts...)

And yes, I'm aware that this post tends to ramble a bit...I'm on my 4th wind and ready for bed ;)

Ginseng (1)

CaptTofu (4109) | more than 14 years ago | (#1283360)

I think I'll stick to taking lots of Ginseng and Niacin, and coffee if I want increased brain activity.

Hmmm... (1)

krital (4789) | more than 14 years ago | (#1283361)

So now I know why I always produce better code at 3 AM after drinking two liters of cherry coke...

I see dead people... (1)

Mongoose (8480) | more than 14 years ago | (#1283369)

Yeah I like it when you can talk with the dead people after not sleeping a week. That and tlaking to your feet, those cut ups...

Is this a good idea to tell people:

(define direct_relationship(sleep, brian_activity))

proc less_sleep
begin
inc brian_activity
end

oh god I need a little more sleep...

for(i=10;i100;i+=10)sleep(i);

when:: little_sleep(me) :- well_screw(me)

segmentation fault... woof woof

MPAA (1)

MAXOMENOS (9802) | more than 14 years ago | (#1283370)

Well, at least we know the MPAA isn't losing any sleep...

READ THE ARTICLE... (1)

Duncan3 (10537) | more than 14 years ago | (#1283372)

The "blurb" is very misleading. Sleep depravation is not a good thing as it suggests.

"Subjects had fewer correct answers and omitted more responses when sleepy than when rested."

Does that mean... (1)

Croaker (10633) | more than 14 years ago | (#1283373)

that if you stay up long enough, your brain will just explode from all that activity? (it would if this were a Hollywood movie, I bet.)

What a mess.

(on the serious side, do we really know what sleep is for, anyhow? Perhaps this is similar to a hard drive thrashing when the filesystem has gotten too fragmented. More overhead required to the do same thing...)

Re:Yeah, so? (1)

Serfer (11135) | more than 14 years ago | (#1283374)

sleep deprivation, in extreme cases, can cause hallucinations, even long after you have slept again. It is also possible that it can change your personality. Such as one radio DJ who stayed awake for 16 (i think) days. He began hallucinating, even after he had begun sleeping again. His wife said he had "changed" he had become more withdrawn. They were divorced about 3 months later.
I'd say sleep is a dangerous drug

-Serfer

Re:Longest without sleep? (1)

falser (11170) | more than 14 years ago | (#1283375)

I seem to have problems sleeping often - I just can't fall asleep. My body tends to want to stick to a 30 hr waking day, and a 14 hour sleep. I routinely skip sleeping one night, every other night for weeks on end. If I can't fall asleep After 2 nights I give up and start taking sleeping medication. Your brain really can't function properly after a lot of sleep deprevation because it starts to change your thought process which is what the article was getting at. It should not be taken as an incentive to try to stay awake all the time.

"I can only show you Linux... you're the one who has to read the man pages."

Re:Yeah, so? (1)

Kyobu (12511) | more than 14 years ago | (#1283377)

Does anyone know if it has any side effects like acid, or if it's once-off?

IMHO (1)

chuckw (15728) | more than 14 years ago | (#1283380)

The internet does the same thing. When it hits an area of inherent unreliabilty it routes around it. This is much the same thing that the article was describing and in a general sense results in a lowering of the aggregate computing potential.

It is also apparent from this that the brain values verbal skills over mathematical skills. It makes sense since the brain is simply not evolved enough to have multiple mathematical processing areas. Thak and Groo probably needed communication skills more than they needed the ability to balance their stone checkbook.

The parietal area takes over the verbal skills when the pre-frontal area can't handle them anymore. My guess would be that the pre-frontal area of the brain is so new that it is not fault tolerant yet. It's neat to see this appear in other areas like stroke victims and people with forms of impact brain damage. I'm not a believer in the 10% theory. I feel like we use most of our brains although we have the potential to evolve them to include more and more memories and abilities much like FPGA. When another part of the brain evolves to take over something a damaged part can no longer handle, the overall system loses some proccessing power.

In reality all you really need is the ability to move, communicate on a basic level, go to the bathroom, eat and have sex. The brain seems to protect these functions. Everything else is surplus and gives up its processing power if necessary. Lets face it folks we were born to attract mates and breed :-( This would probably explain why the stupidest among us tend to attract the most mates...

Also, if you do not get enough sleep your "cron" process do not run and your system is left in a messy state, eventually becoming unusable...
--
Quantum Linux Laboratories - Accelerating Business with Linux
* Education
* Integration
* Support

Re:Post wrong? (1)

crush (19364) | more than 14 years ago | (#1283384)

Yes, you apparently read the article unlike the poster submitter and editors. No, too harsh there, let's take a more happy view - they were all sleep-deprived and their parietals didn't pull them back up to normal - that sucks.

Re:Sleep Deprivation can also kill. (1)

frantzdb (22281) | more than 14 years ago | (#1283387)

There was a Discovery show about sleep deprivation that included a bit about this. The man was Peter Tripp, I think. Near the end of the 200 hours he started seeing things. He keept thinking spiders were crawling out of his shooes. Very strange stuff. Doctors supposed that his brain was crying out so much for sleep (and dreams) that he was having very lucid nightmares while he was awake. As I recall from the show, his wife was then pregnent with their first child.

Don't try try to stay awake that long at home.

--Ben

Longest without sleep? (1)

jconley (28741) | more than 14 years ago | (#1283392)

Whats the longest you guys have ever gone without sleep. I mean NO sleep. I gotta say I onlye made it about 60 hours...

Jordan

not surprising (1)

komet (36303) | more than 14 years ago | (#1283396)

The extra activity is the bits of your brain ganging together, saying "GET SOME F*ING SLEEP". So no surprises really.

Microsoft Windows is quite similar. As the uptime goes along, junk processes are accumulated which use up CPU time...

OT (1)

m3000 (46427) | more than 14 years ago | (#1283405)

Totally offtopic, but isnt it weird sometimes when similar topic posts are all made in a row? For instance, in this story, it's the basic first post crap, with some other stuff thrown in, and then boom, 3 straight posts commenting on the exact same thing (misleading headline). It happens in a lot of other articles too, where something might be factually wrong with the article, but no one makes any comments until about post 50, and then you get about 3 straight posts on it. It's sorta freaky.

Re:Crystal Meth increases brain activity too. (1)

jeremy f (48588) | more than 14 years ago | (#1283406)

You know what's even scarier? PHB's who equate less sleep = more brain activiity => more productivity.

I'm sure a few memos will be sent out in some companies suggesting the idea of getting a solid 4 hours of sleep ever 3 days.

:)


_____________________
.sig Instructions
step one: place .sig here

Re:Does that mean... (1)

vectro (54263) | more than 14 years ago | (#1283408)

I wouldn't know, my ext2 filesystem is self-defragmenting. ;)

More Brain Activity Not Necessarily Good (1)

hsouders (57160) | more than 14 years ago | (#1283410)

The article states that sleep deprivation causes increased brains activity -- this is not necessarily a good thing.

I recall a study comparing students that did well in math and students that did poorly. The students that did well had minor brain activity. The kids that did poorly had a LOT of brain activity.

The results of this study concluded that this might have to do with "brain efficiency" and that the increased brain activity in the kids doing poorly was causing them more problems.

I don't have URL for this study. It was about two years ago.

Some personal knownledge (1)

Necroman (61604) | more than 14 years ago | (#1283412)

In the past few weeks, I have actually noticed that.. Bah, who needs sceince to tell us about reality. While at work and semi-sleep deprived (not as bad as college students, but like 2 hours sleep and a long day), I can do the same work or more WHILE holding converstation with people around me, which normally can not be done on a good nights sleep. My job also calls for working either mornings or nights, and if I am working nights (till like midnight), I just with it more, while the people we serve are pissed off and taking it all out on you.... Would be nice to be in a bad mood at the same time as our customers, then we take agression out on them too.


Its not what it is, its something else.

All Set? (1)

samantha (68231) | more than 14 years ago | (#1283416)

Huh? The caffiene story says it causes the dendrites to grow and grow more spines but we do not yet know what this does or doesn't do for long term memory. The sleep deprivation story says that sleep dev turns off parts of your brain and other parts get hyper to try to compensate. But in particular it says it lowers math ability. Last time I checked coding and math ability are pretty strongly correlated. So I would be very surprised if sleep dev improved hacking.

Burning Hard Drives (1)

veldrane (70385) | more than 14 years ago | (#1283419)

I would imagine its not too dissimilar from a computer hard drive.

A) You have have it spinning constantly, giving you an improved speed on the return of information. Downside: Shortens life span of said drive, burns more energy and can begin to make scary grinding noises. :)

B) You can keep you hard drive in the occasional "sleep mode" by spinning it down when not needed or at least after a determined time where it isn't being accessed. This can save on energy, drive life span, and less grindy noises down the road. Downside: Data access takes a bit once you have to wake it up. You also finding it inadvertantly dozing on you once in a while. (Mine does while playing Diablo...arg! :(

Basically, everyone has a happy middle ground somewhere in there between A & B.

Ok...so I could be off. My brain's spinning down now anyway. Its a Friday! :)

-Vel

DoS! (1)

fence (70444) | more than 14 years ago | (#1283420)

So, Katz was behind your personal DoS (Denial of Sleep) attack!

Re:Doh, article doesn't say memory is improved (1)

nixnixnix (81148) | more than 14 years ago | (#1283424)

Exactly. Nowhere does this article mention that long term memory is improved. In fact, it says the opposite, and I quote: "Subjects had fewer correct answers and omitted more responses when sleepy than when rested" So in now way does the study support this statement: WRONG "Research found students to have better recollection after long periods of sleep deprivation" WRONG All they said is that when subjects are sleepy, they noted a slightly greater activity in the porietal lobe, which is associated with long term memory, that's all. Here: TOP: Activity of a rested brain doing subtraction BOTTOM: Activity of a sleep-deprived brain doing subtraction Which would you rather be?

Re:Doh, article doesn't say memory is improved (1)

nixnixnix (81148) | more than 14 years ago | (#1283425)

Exactly. Nowhere does this article mention that long term memory is improved. In fact, it says the opposite, and I quote:

"Subjects had fewer correct answers and omitted more responses when sleepy than when rested"

So in now way does the study support this statement:

WRONG "Research found students to have better recollection after long periods of sleep deprivation" WRONG

All they said is that when subjects are sleepy, they noted a slightly greater activity in the porietal lobe, which is associated with long term memory, that's all.

Here: look at this image.

http://health.ucsd.edu/news/images/gillanNeuroRepo rt.jpg

TOP: Activity of a rested brain doing subtraction BOTTOM: Activity of a sleep-deprived brain doing subtraction

Which would you rather be?

Sensationalism? (1)

jidar (83795) | more than 14 years ago | (#1283427)

If you read the study you see they are not saying that sleep deprivation increases your abilites, just that the brain tries to compensate by becoming active in regions that it normally is not. Whether or not this compensation is an improvement is up for debate, and I for one doubt that it is.
With that in mind perhaps the title 'Sleep Deprivation Increases Brain Activity' is a bit misleading, especially when coupled the comments below the title?

Come on, I have seen /. complaining about other news sites doing this, try to keep yourselves to the same standard.

pseudoscientific anecdotal evidence (1)

sketchy (86211) | more than 14 years ago | (#1283428)

From experience, I tend to agree with the results of the experiment (and like most of you I've had a lot of experience with sleep deprivation:-() It was definitely a bad thing(lgpl) taking a proof-oriented math midterm after an hour or so of sleep. (Then again, it was pretty bad taking a take-home math final with 10 hours sleep...on the keyboard before the deadline;) But on the other hand, I don't really have a problem with BS'ing (i.e., exercising my creative writing powers) under sleep deprivation. Indeed, it seems to encourage my ranting ability. Too bad I got a full 6 hours of sleep today or else I'd be able to continue...

-----------------------------------------------

Re:Longest without sleep? (1)

cr4ckm4st3r (86528) | more than 14 years ago | (#1283429)

i've gone around 84.
i have to admit with the aid of dexadrine.
after 2 1/2 days your eyes go, then your brain.
anything with grain or texture starts to bleed and move. then your depth perception goes.
your muscles are next. at that point you might aswell be asleep because your entire body starts shutting down "sort of like a military academy, bits of me keep passing out..."
i've only done that a few times.
i've gone 2 days a lot though.
its that third day that does the trick.
by the way its nothing like tripping, its more like spacing out.

And I thought it was just because they were mean! (1)

Artie FM (87445) | more than 14 years ago | (#1283430)


You mean to tell me there was some purpose behind sleeping 2 hrs a night while I was in college?

I thought it done because the people in college were mean son'bitches!

I mean between those freaking engineering projects, all the drinking I did, and fooling around at all hours there wasn't much time for sleep. I can sleep easy know that I know it made me exercise my brain muscle.

Re:Sleep Deprivation can also kill. (1)

David Ham (88421) | more than 14 years ago | (#1283431)

yeah, but i recall reading that 15 minute power naps are actually quite good for you, where you don't feel tired as long as you sleep for about 15 minutes every 4 hours. is that not true? i've tried it and never have had any problems, although concede that once after 4 days of being awake, i started hallucinating and feeling *really* dizzy...
--

sleep deprivation isn't a friendly thing (1)

SEAL (88488) | more than 14 years ago | (#1283432)

... take Hell week, for example. Maybe someone could've measured more brain activity, but I doubt it was useful activity. There's a reason sleep deprivation is often used in POW / capture situations. It can break the spirit of many people, or at least push them over the edge in an otherwise stressful situation.

Just my $.02.

SEAL

Not EXACTLY like it sounds... (1)

laborit (90558) | more than 14 years ago | (#1283433)

A few caveats about interpreting this study:

1) Extra activation != increased brainpower
A variety of conditions, such as seizures, frontal lobe damage, and schizophrenia can all produce increased neurological activity. Now, I'm not saying that what we see here is of this pathological variety. The release states that sleep-deprived subjects who showed more abnormal activation did better than those with less -- but not better than those who showed none at all as a result of having adequate sleep. As Gillin suggests, it seems to be some sort of compensatory mechanism, rather than an overall advantage.

2) Extra activation is not necessarily healthy
More neurological activity is not necessarily sustainable or healthy. In extreme cases, brain cells can even be killed by overexcitation, although personally I'm only aware of drug models [frognet.net] for this phenomenon.

3) Take Gillin's general comments on sleep deprivation with a grain of salt
The author of the study editorializes a bit towards the end of the release. There's no doubt that sleep deprivation impairs concentration and mental ability, or that many people do suffer from the condition. But her suggestion that sleep deprivation is endemic and terribly costly to society is not yet an established fact. Here are a few articles [lboro.ac.uk] that challenge her stance, without disagreeing on the basic nature of sleep deprivation.

- Michael Cohn

Re:Linux sucks (1)

niekze (96793) | more than 14 years ago | (#1283436)

I'm a bsd obsessed geek. wise up stoopid.

Re:Longest without sleep? (1)

Pyrrus (97830) | more than 14 years ago | (#1283438)

hahaha, my record is 86 hours when I was in the fourth grade. We didn't use caffine until the last 18 hours either!

"huhuhuhh, go away. we're like closed or something"

Slashdot Moderation (OT) (1)

sylvester (98418) | more than 14 years ago | (#1283440)

This is completely OT, but I'm putting it here because I have the chance to post early, and I'm unabashedly hoping to get moderated up so people can see it, and let me know if they agree or not. Is it just me, or is there less moderation these days? I usually read at 3+, and even on mediocre-response articles, there is a handful of articles at this level For the last few days, it seems that there has been significantly less. A few explanations come to mind: o I'm crazy, it's the same as usual. Responses to this article will determine that. o More people are moderating down, rather than up. I don't know, I don't read at -1, but I doubt it. o For some reason, users are moderating less. This seems unlikely to me. o The quotas for how many moderation points are given it has been dropped. It's that last one that is bothersome -- because, again, there are a few explanations that I can think of: o One of the slashdot crew is fiddling with quotas to try and fine-tune the moderation system. o A bug in the code, perhaps. Or the really bothersome one: The ability to moderate is being limited. Why is this bothersome? Well, I'm not normally a conspiracy nut, but moderation is what keeps any force from being able to heavy-handedly change slashdot. Like other people have pointed out, 90% of the content here is in the comments, if not more. The users control the comments, the users control the site, which means VA, Andover, and whoever, have only a limited ability to influence things, because they have watchdogs that can get moderated up if something seems fishy. If there are fewer moderation points being given out, then this seems awfully suspicious. Just some thoughts. Anyone noticed the same thing? My apologies to the slashdot crew for yet more criticism and paranoia, but..I can't help it. :-)

Re:Slashdot Moderation (OT) (proper formatting!) (1)

sylvester (98418) | more than 14 years ago | (#1283441)

Sorry about the formatting in the last post...
This is completely OT, but I'm putting it here because I have the chance to post early, and I'm unabashedly hoping to get moderated up so people can see it, and let me know if they agree or not.

Is it just me, or is there less moderation these days? I usually read at 3+, and even on mediocre-response articles, there is a handful of articles at this level For the last few days, it seems that there has been significantly less.

A few explanations come to mind:
o I'm crazy, it's the same as usual. Responses to this article will determine that.
o More people are moderating down, rather than up. I don't know, I don't read at -1, but I doubt it.
o For some reason, users are moderating less. This seems unlikely to me.
o The quotas for how many moderation points are given it has been dropped.

It's that last one that is bothersome -- because, again, there are a few explanations that I can think of:
o One of the slashdot crew is fiddling with quotas to try and fine-tune the moderation system.
o A bug in the code, perhaps.

Or the really bothersome one:

The ability to moderate is being limited. Why is this bothersome? Well, I'm not normally a conspiracy nut, but moderation is what keeps any force from being able to heavy-handedly change slashdot. Like other people have pointed out, 90% of the content here is in the comments, if not more. The users control the comments, the users control the site, which means VA, Andover, and whoever, have only a limited ability to influence things, because they have watchdogs that can get moderated up if something seems fishy. If there are fewer moderation points being given out, then this seems awfully suspicious.

Just some thoughts. Anyone noticed the same thing?

My apologies to the slashdot crew for yet more criticism and paranoia, but..I can't help it. :-)

Re:Oops (1)

sgage (109086) | more than 14 years ago | (#1283451)

"Save the flames, please read Maked as Made."

You must've been tired.

Re:More Brain Activity Not Necessarily Good (1)

sgage (109086) | more than 14 years ago | (#1283452)

Yeah, "brain efficiency", right.

Another way of saying "we don't know what the fuck is going on here". It's exactly like the medieval medical exam question: "Why does opium make people sleep"? The correct answer was "because it contains a dormitive principle". Science very often confuses description with explanation. Ack!

Re:Netscape (1)

sgage (109086) | more than 14 years ago | (#1283453)

Snr. Monsado, It's posts like yours that keep me coming back to /. You have made your point with total lucidity and economy. Hat's off!

Re:News?? (1)

bolthole (122186) | more than 14 years ago | (#1283464)

Actually, coding improves dramatically after 1am,
because the gubmint mind control radio waves
are turned down at that time. They used to have
them going all the time, but they found that
it stopped people gettting proper restful sleep.

Then the factory bosses complained that the workers were getting restless due to hallucinations from sleep depravation, so the capitalist regime re-optimized the mind control schedule.

[Now how many ECHELON points is THAT?]

420 Hours! (1)

348 (124012) | more than 14 years ago | (#1283465)

But only because I was really commited to actually getting to the end of the latest Katz article

Oops (1)

348 (124012) | more than 14 years ago | (#1283466)

Save the flames, please read Maked as Made.

I went to Fiarfax County Public Schools, I write very goodly english.

but what about the body ? (1)

Nastard (124180) | more than 14 years ago | (#1283467)

the article is /.ed so im going off of the story here.

it mentions increased brain activity. great. but what about their bodies ? im sure the brain runs fast as lightning, but what good is it if your body only runs at the speed of windows ?

my sleep deprevation experiances (1)

S7urm (126547) | more than 14 years ago | (#1283470)

The article may have some truth to it after all I went five days without sleep and found that I was philosphizing more. That I wonder'd why do I exist? Why do WE exist and in that time I wrote a paper on my "Theory on unequivicable singulartiy" and it was rather well written (done on the 5th day) and I also wrote a comment here that scored well on the 4th day. I think that sleep deprevation, though dangerous, does stimulate expanded brain function and opens gateways to different forms of creativity that the well rested mind may not clasp onto. Some food for thought...try writing as thesis after not sleeping for a week...might be interesting results.

Re:Post wrong? (1)

ghassanm (130547) | more than 14 years ago | (#1283473)

You guys are right. In the past I have normally sided with the poster's interpretations, however I'm beginning to realize that was merely so because of my bias. Considering how many thousands of people visit slashdot, I think it is time for Slashdot to become more objective.

But. (1)

kwsNI (133721) | more than 14 years ago | (#1283475)

Yeah, my brain is more active, but the quality of it sucks.

kwsNI

people are irresponsible (1)

Jett (135113) | more than 14 years ago | (#1283476)

slashdot does have looser journalistic standards than many other sites, but that is part of what makes slashdot slashdot. people just need to understand that journalists are not perfect, you can not take everything they say as The Truth. anyone dumb enough to blindly accept what they are told unfortuntly probably deserves what they get. people need to take some responsibility to think for themselves, to educate themselves and to not blindly accept other peoples interpretations of reality. simple as that.

Re:Blood Flow != Memory , but children - yes... (1)

acoward (136404) | more than 14 years ago | (#1283478)

The obvious thing that I took from all the mumbo-jumbo about chemicals was: No_Sleep increases verbal skills and decreases math skills. Ok, when are most humans subjected to No_Sleep? When they have babies. What are you doing with a baby? Trying to feed it... based on its screams and so you are learning a minimal language. Natural selection rules seem to apply here.

This also makes sense from the "parents understand their childrens language"-perspective because by the time that the child is old enough to form words, then the parent gets more sleep and the memory starts kicking back in.

Never attribute to conspiracy what could adequately be attributed to stupidity - but the NSA must have planted the dDoS attacks...

Blood Flow != Memory (1)

big.ears (136789) | more than 14 years ago | (#1283479)

BRIEF fMRI TUTORIAL (sorta):

The study here is based on measuring cerebral blood flow. When they analyze the image and come up with the pretty brain pictures, what you are actually seeing is a map of the areas of the brain that are significantly more active than the other regions, compared to a baseline condition. This means that if there is generally more blood flowing around in all parts of the brain, you will be less likely to measure significant activation in a specific area. This could happen in the sleep deprived for the following reasons:

The blood flow that is being measured is moderated by the exchange of sodium and potassium across the neuron membranes. So, chemicals that effect this process can also effect the blood flow. Certain brain chemicals go nutty when you are sleep deprived (thus the comments on hallucination on other posts). In fact, some would say these chemicals are the things that make you tired. The moral is, these chemical may be having a direct effect on the blood flow in all parts of the brain, making it more difficult to find significant differences in the regions of interest. So, their main conclusion, that areas are less active in the sleep-deprived, is probably an artifact of the plumbing of the brain, rather than an interesting finding about actual brain functioning.

The interpretation that many people are giving the paper is also incorrect. The actual finding is that sleep deprivation is bad, but those people who did better when sleep deprived had more parietal lobe activity. Even if this is true, nobody really knows what it means.

The interpretation that the researchers give this is on shaky ground--It is a potential explanation, but there are enough problems with the methodology that I think the only thing that is certain about this research is that "Sleep Deprived People Do Worse".

Moral: Don't rely on headlines for your science. And take it all with a healthy dose of skepticism.

Netscape (1)

monsado (136879) | more than 14 years ago | (#1283480)

I guess going without sleep affects your brain like Netscape affects your CPU. After a while, you start seeing lots of activity, but it isn't doing anything very useful.

NO wonder why.. (1)

www.sorehands.com (142825) | more than 14 years ago | (#1283483)

No wonder why I get so much work done when I don't sleep for a week.

Who says I drink too much coffee [sorehands.com] ?

100 hours without sleep. (1)

www.sorehands.com (142825) | more than 14 years ago | (#1283484)

There was one week I went without sleep. I tried sleeping and I could not. I even tried late night cable, but it did not work. I got a hell of a lot of work done.

Proof! (1)

gunner800 (142959) | more than 14 years ago | (#1283485)

Finally, proof that mine is the One True Faith.

-sig-

So tell me...... (1)

QA (146189) | more than 14 years ago | (#1283486)

How long have the /. Moderators been awake? . . .

Re:More Brain Activity Not Necessarily Good (1)

uebernewby (149493) | more than 14 years ago | (#1283489)

This makes sense...isn't there also a disorder known as hyperactivity? And during an epileptic seizure, brain activity increases in certain parts of the brain, feeding back on itself continuously. If I recall correctly, the feeling you get when you haven't slept for a day or two resembles the feeling you get when you run a VERY high fever.

This is exactly why Linux is better than NT!!! (1)

Jim.Dean (151091) | more than 14 years ago | (#1283492)

Well doesn't it just make sense though? 95% of the code in linux is written at 4am on a weekend, after drinking a 12 pack of Mountain Dews and 30 minutes before the coder just passes out. NT of course was written by guys who go to Starbucks, go to bed at 10 o'clock and code at noon time. OK, well maybe there are other reasons to that argument but I'm sure this is what lies behind them all. :)

News?? (1)

Stary (151493) | more than 14 years ago | (#1283494)

Well okay... what coder didn't know already that coding abilities increase dramaticly after 1 am?

It's like all those things you'll hear on the radio about scientists putting ten million into a project to come out with the fact that "rats that get infected with cancer die sooner than rats that we dont infect"...

Along with decreasing life expectancy (2)

heroine (1220) | more than 14 years ago | (#1283498)

It's also well known that sleep deprivation decreases life expectancy. Remember the DJ in 1959 who spent 200 hours on the air without any sleep. Then they found he was permanently brain damaged. He had increased brain activity all right but he was a vegetable. Ever since then when a radio station wanted to pull a stunt like that they had the DJ taking intermittant naps.

Sleep's role in our physiology (2)

grappler (14976) | more than 14 years ago | (#1283501)

I've always wondered exactly what purpose it is that sleep serves. It is obviously not just for resting our organs and muscles - I see no reason for the impossibility of creatures whose bodies need no sleep.

It is obviously a necessity for the brain. Perhaps for consciousness to occur, there have to be periods of unconsciousness for some kind of routine "maintenance" that the brain's neural network performs on itself, somehow tied in with dreams.

I have absolutely no background on this - the above is just my random musings as I started learning about neural nets and AI. I was hoping to start a discussion or catch the eye of someone who has studied this extensively. What is the current state of human knowledge about sleep? Is it still mostly a mystery?

--
grappler

"Unrecoverable brain damage" (2)

Esperandi (87863) | more than 14 years ago | (#1283510)

Contrary to popular belief, your brain is constantly regenerating brain cells. Brain cells do not live forever, they die and are reborn like every other cell in the body.

There is a catch, however, and its the reason scientists once thot no brain cells could ever be regenerated... they need acetylcholene. Acetylcholene isn't usually found anywhere in your body except one place - the protective "lining" of brain cells. So when it goes to regenerate one, it rips an old one apart and builds the new cell inside, so it seems like no progress is being made. There is one food that contains acetylcholine, though. Fish! It really IS brain food! (I'm not joking, BTW) You can buy choline tablets too at health food stores. Lots of people call it a "smart drug" but it doesn't increase intelligence, it simply stops the brain from autocannibalizing cells when regenerating. Nootropics (smart drugs) is an interesting field. Most are just like caffeine spinoffs (keep you more alert) and a lot are just lies in a bottle, but there seems to be a lot of study done on acetylcholene.

Esperandi

Slashdot deprivation (2)

348 (124012) | more than 14 years ago | (#1283511)

The ability of the brain to function following Slashdot deprivation appears to vary with the task at hand, and in some cases the brain attempts to compensate for the adverse effects caused by lack of Slashdot, according to a study published in the Feb. 10 issue of Flamebait.

A team of researchers from the UCSD School of Medicine and the Zelot Affairs Healthcare System, San Diego used functional magnetic resonance imaging (fMRI) technology to monitor activity in the brains of Slashdot-deprived subjects performing simple verbal learning tasks.

They were somewhat surprised to learn that regions of the brain's prefrontal cortex (PFC) displayed more activity in direct correlation with the subject's sense of Slashdotness; the Slashdotier the subject, the more active the PFC.

Furthermore, the temporal lobe, a brain region involved in language processing, was activated during flaming previous posts in troll subjects but not in Slashdot deprived subjects. Additionally, a region of the brain called the parietal lobes, not activated in troll subjects during the posting exercise, was more active when the subjects were deprived of Slashdot. The parietal region normally performs somewhat different functions in the learning process than the temporal region. Although subjects' memory performance was less efficient with Slashdot deprivation, greater activity in the parietal region was associated with better memory.

"Only in recent years have we begun to realize the prevalence and severity of Slashdot deprivation in our population, with a significant number of people doing first posts work, suffering from karma lag and so forth," said J. Natalie Portman, M.D., professor of psychiatry at the UCSD and the San Diego VAMC, and an author of the Flamebait paper. "Yet, we don't know very much about how Slashdot deprivation impairs sexual performance, and how precisely the brain reacts to lack of Slashdot. These findings are just a beginning, and as we learn more, perhaps will be able to devise interventions to alleviate the behavioral impairments associated with lack of Slashdot."

Re:All Set? (2)

348 (124012) | more than 14 years ago | (#1283512)

I more or less said that the brain works harder, not nessasarily better, or at least better for any sustained period of time. I would have to think it would be really bad long term, not just for your brain but your health would have to suffer. What good would a +2(Insightful) brainbonus due you if you were laid up sick all the time.

Misleading (2)

348 (124012) | more than 14 years ago | (#1283513)

Although the depravation maked the brain work harder, pulling in other resources from other parts of the brain, the overall effect is actually quite dammaging. Not my field at all, however there was a pretty in depth article I read a couple of weeks ago that basically said there was a direct corelation between lack of sleep for extended periods, like 48 hours, and unrecoverable dammage to the brain overall.

Me I take the safe route, I view non-sleep time as that annoying period between naps, and limit all non-sleep time as much as possible.

Please move this one up (2)

348 (124012) | more than 14 years ago | (#1283514)

This is pretty accurate. That guy from the 50's ended up dying about a year later, can't remember if he did the deed himself but I do recall that he went off the deep end, not like shooting up a mall but divorced or left his wife, forgot the names of his kids etc., A full blown personality change.

And if that's not really revelant, the folks from NYC would gain insight into how to finally kick the rat problem.

WOW-The Dept. of Veteran's Affairs was involved (3)

richj (85270) | more than 14 years ago | (#1283518)

Boy, I'd hate to be one of *their* test subjects. When these guys actually did get to sleep, the VA probably accidentally amputated their legs and then lost the medical records.

The things I've seen at the VA Medical Center East Orange NJ, it wouldn't suprise me!

Post wrong? (5)

DefConOne (17385) | more than 14 years ago | (#1283519)

My interpretation of the article is somewhat different than that of the poster. I think that the following line does NOT mean that "Research found students to have better recollection after long periods of sleep deprivation"

Although subjects' memory performance was less efficient with sleep deprivation, greater activity in the parietal region was associated with better memory.

My interpretation of that line is that, overall, students had WORSE memory performance when sleep-deprived, but those students who had greater activity in the parietal region performed better than those with lower activity -- but still worse than they would have had with a good night's sleep. Am I correct in my reading?

Sleep Deprivation can also kill. (5)

Winged Plum (65204) | more than 14 years ago | (#1283520)

Sleep deprivation can also kill you. I did a 12 page report on sleep and its effects on the human body, and have about 5 pages of stuff on sleep deprivation. A guy in the 1950's, I believe, did a radio show for 200 hours straight, and suffered SEVERE mental damage from it. Also, rats who have been deprived of any rest at all have died after 17 days. People with fatal familial insomnia, which causes the victim to be deprived of sleep for months upon months, will eventually kill after 9 to 12 months. If you want more information on sleep, deprivation, and disorders, e-mail me at mcnamarc@kirtland.cc.mi.us and I'll send you the report. I'll feel special, too. : )
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