/sci/ - Science & Math

I am quite talkative when sleep deprived. similar effect to being intoxicated by alcohol but with increased critical thinking.

>How are your mental abilities -- you, personally -- affected by sleep deprivation?
After pulling an all-nighter:
-Short term memory is shot to shit
-It's harder to think of things to say...I have to slow down when I talk or my brain can't form words from an idea fast enough
-Math and related skills remain about the same
-Loss of hand-eye coordination
-More easily angered
-more talkative
After a while I just enter "zombie mode" and can keep plugging away at anything until about the 33 hour mark at which point I'll just fall asleep.

One thing I've really noticed is that I often slip on my words when talking. It's pretty embarrassing when it happens.

>>2758607
Yeah, sleep dep gets you high.

>>2758625
physically it is unpleasant. especially on my eyes as it gets irritated easily. also some sores will develop.

>>2758625
Actually, sleep deprivation can be used to temporarily alleviate depression.

>>2758603
Depends at what stage.

I've noticed that when I'm sleep deprived but "awake" (i.e. not feeling tired) I'll be strangely more acute and able to think, learn etc. faster - kind of like someone shut off all my mental delimiters temporarily. Though, this usually happens only a couple hours before tired-as-fuck-mode and it doesn't happen all the time. In crashmode, I'm basically asleep, don't pay attention to the lecture (asleep), etc.

>>2758670
I think that is because survival mode kicks in. your body is giving out stress signal to the brain and it react accordingly.

>>2758682
Interesting. I thought it was just adrenaline.

>>2758697
yeah think about it. in ancient time or through out the course of human evolution; you don't stay up more than you usually would unless you are in some sticky shit.
for 99 percent of human history night time actually means night time, there isn't any reliable source of light to get productive. rest time rather stable until we came up with artificial light.

My social anxiety plummets and my speaking voice becomes completely stress free when I'm sleep deprived.
I also become hyper sometimes.

I use larger words when after I've passed the 30~ hour mark. Words I forgot I even knew.
But my ability to perform even very low-level math goes out the window completely.

I've found mental ability is pretty much the same when sleep deprived, physical abilities decrease and irritability increases.

creativity also increases

I found after a certain tiredness point my brain just gives up on multi-tasking. At this time, it's easier to maintain focus on the task at hand.

After the first 24hours I lose the feeling of tiredness and become jittery. Social inhibitions loosen, coordination decreases, my ability to do math remains the same. Writing I have not tried while sleep deprived yet. My ability to learn seems decreased but I can remember quite a bit of the shit I did like walking to the store with some ppl and shit like that well.

http://www.physorg.com/news/2011-03-all-nighters-euphoria-risky-behavior.html

>(PhysOrg.com) -- A sleepless night can make us cranky and moody. But a lesser known side effect of sleep deprivation is short-term euphoria, which can potentially lead to poor judgment and addictive behavior, according to new research from the University of California, Berkeley.

As someone who sleeps 6 hours average I think this article is true.

i have noticed the same thing with chess. if i've only slept for 4-6 hours, i'm a great puzzle solver and can calculate really well (perhaps up to about 20 moves ahead). if i've slept for 8+ hours then i blunder quite often, but my intuition is great (more positional).

it has to do with which side of the brain you're using. i suppose it has to do with circadian rythm/rem sleep cycles or whatever. but i can safely say it's because i go from being a right-brainer to a left-brainer if i've not slept. my memory and intuition fade, but my calculating ability and perception increases. i'm also more verbal.

there are studies which suggest that grandmasters and professional go players can use both sides of their brains simulateously. i'm trying to see if i can do the same at the moment.

http://www.newscientist.com/article/dn19940-chess-players-get-brain-boost.html

>>2758908
i've had the all nighter's euphoria before. shortly after, you crash like hell and start almost blacking out

>>2758908

6 hours is plenty of sleep. That's how much I sleep every night. I vaguely recall reading a study that said 8 hours was too much sleep, and could in fact be detrimental to your health, and somewhere between 6 and 7 was the magic number.

>>2759044

>simulateously

whoa, my typing is off today.

>>2758731
intredasting

>>2759044
>perhaps up to about 20 moves ahead
I don't play chess,
but wat am I reading?

>>2759125

i've probably done it once or twice. seen 20 moves ahead in my head and calculated it perfectly, but it takes a hell of a lot of concentration.

chess grandmasters do the same. they can play entire games 'blindfold' - meaning they don't see the pieces at all - just the board and the moves in chess notation. the best players in the world are doing this right now actually:

http://www.amberchess20.com/PGNViewer/live.html

>>2759137

How can you "see 20 moves ahead"? That would imply that you have to be able to predict your opponents strategy exactly.

>>2759148
you see all possible outcomes...

>>2759148

i was talking about puzzles. puzzles are quite different, because there are FORCED moves. in such cases, for a specific move, your opponent HAS to move in a certain way to avoid mate/material loss.

it is possible to do the same in normal games. for example, sometimes if you're attacking, your opponent will have to defend, so you might well be able to calculate exactly what he can reasonably do. you can consider all reasonable eventualities.

>>2759154

"All" possible outcomes? I highly doubt that. I could understand it if you filtered the outcomes down to the most likely ones, but certainly not all.

>>2759137
>seen 20 moves ahead in my head and calculated it perfectly

Hahahahaha

The most I've ever gone without sleep is 36 hours. In the morning I feel like shit- general malaise. I find myself staring aimlessly at things and I easily get confused/lost. But by the evening I just feel tired as though I slept normally the night before.

All I know is that the frontal cortex is probably damaged after skipping too much sleep.

Some of the world record holders for sleep deprivation have altered personalities, can't focus on one goal, lose their jobs, have a temper, etc.

>>2759137

> 20 moves ahead
> 20

You're a fucking retard.

http://www.chess.com/play/

Bring it, with your 20 moves ahead.

>>2759568
>>2759914

lrn2 chess puzzles, morons.

>>2759914

i don't play cheaters/idiots - it's a waste of time.