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Sleeping Patterns Effect on Learning

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patrickwilken
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Germany
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 Message 17 of 20
15 July 2012 at 9:07am | IP Logged 
Bao wrote:
druckfehler wrote:
I wish I had a normal sleeping pattern. I keep trying to sleep earlier, but I oscillate between 1am and 5am (I know! 5am is pretty dismal). Maybe I have to move to another time zone to get it under control (would also be beneficial for language study, I guess :D). In any case, if I get the right amount of sleep and don't drastically change the pattern all the time my memory seems okay regardless.

Delayed sleep phase disorder - I can't find the source, may be that is was my psych teacher who said it - seems to be ok for a couple of days in the new time zone and then it returns, because it doesn't mean your cicadian rhytm is adjusted to a different time zone, it is adjusted to the time zone where you live, but following a different schedule.


Delayed Sleep Disorder sounds serious! I would have just said it sounds like you are a 'owl' type sleeper (i.e., someone who regularly goes to bed late), as opposed to a 'lark' (someone who regularly gets up early). Nothing to about it. Changing time zones won't help.

I am definitely an owl, but what worries me now in my 40s is that I also wake early. I used to put it down to stress, but I was talking to a friend the other day and she told me that she and other friends of hers also had trouble with sleep. So perhaps this is just a sign of aging. The good news is that five hours sleep, while a bit unpleasant, doesn't kill me like it used to in my 20s. Coffee is my friend.
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patrickwilken
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 Message 18 of 20
15 July 2012 at 9:16am | IP Logged 
My memory of the psychological literature on sleep is mostly about twenty years out of date, but what I remember is:

1. Memory consolidation is associated with non-REM sleep (so the type of sleep where you have thoughts going through your mind, if you have any conscious experiences at all; not the type where you generally experience vivid dreams).

2. While sleep goes through a series of 90min cycles, there is a loading of REM sleep into the later part the night, so waking up early will disproportionately cut down on REM, not non-REM sleep, and so shouldn't affect memory consolidation too much.

3. The only consistent memory consolidation that I had read about in non-REM was associated with motor learning of tasks (i.e., hand movements in the like). So you could see a jump in someone's ability to mirror trace a shape with their left hand (a difficult motor task) after sleep; or more prosaically their ability to play a computer game. I haven't seen any literature on memory improvements for stuff like languages.

Anyone know the more recent literature? It's possible/probable that all the points above are now wrong.

Edited by patrickwilken on 15 July 2012 at 9:22am

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Bao
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 Message 19 of 20
15 July 2012 at 2:58pm | IP Logged 
patrickwilken wrote:
Delayed Sleep Disorder sounds serious! I would have just said it sounds like you are a 'owl' type sleeper (i.e., someone who regularly goes to bed late), as opposed to a 'lark' (someone who regularly gets up early). Nothing to about it. Changing time zones won't help.

An 'owl' is a person who gets enough sleep most nights when working a daytime job, even when they are grumpy in the mornings. I'd say, regular bed time between 10pm and 1am. Delayed sleep phase disorder means that a person either doesn't get enough sleep, or can't hold a daytime job because of their sleeping pattern, and that they suffer from the effects their natural circadian rhythm has. I mentioned the disorder because there is more relevent material to find on it than for 'owls' and 'larks' - terms that are very much part of folklore these days.

Wulfgar wrote:
Has anybody read anything on the optimum length nap? I've read anywhere from 15 minutes to 90 minutes. I
suppose it depends on various factors, but it would be nice to figure out how to optimize it.

It depends on how long your sleep phases at the beginning of sleeping are. What you want is to wake up during a stage 2 phase, so that you are alert afterwards, and not to wake up during a stage that leads to sleep inertia.
You'll just have to experiment to find out how long it takes you to reach that stage for the first time in a cycle. Maybe you're even one of those enviable people who actually can think 'ok I'm going to take a nap and in 30 minutes I'll wake up' - and then wake up on time, without an alarm clock.

Edited by Bao on 15 July 2012 at 3:18pm

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dinguino
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 Message 20 of 20
15 July 2012 at 11:47pm | IP Logged 
This is a bit scary how I get to know that many forum members around here have the same "problems" or call it oddities, extraordinariness like me...
I am 20 years old and I can't remember the last time I got to bed before 2/3 am regardless of when I have to get up the next morning. And whenever I don't work 2 or 3 days and I have nothing special to do, I easily stay up till 7 am and sleep till afternoon which causes some problems when I have to go to work some days later.
But I noticed that I am much more active in the night!


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