For questions pertaining to the physiology and pathophysiology of sleep in humans and animals (e.g., sleep stages and their EEG patterns, sleep disturbances), along with psychological effects of sleep deprivation or fatigue.

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7
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1answer
205 views

Can lucid dreaming detract from the recuperative effect of REM sleep?

Imagine you mastered lucid dreaming, so you have a lucid dream every night. You might want to use this phase to do creative work or problem solving. Would this have a negative influence on the ...
4
votes
1answer
427 views

Is it possible to become addicted to sleep deprivation?

Background: After staying awake for an entire night without sleeping medication, some individuals report feeling tired while others report feeling euphoric and at some point begin to hallucinate with ...
3
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1answer
64 views

Why do Spiritual people try to sleep less?

In Monasteries and other spiritual contexts, there seems to be a "rule" that sleep is wasted time, and so the usual daily schedule only allows for about 4-5 hours of sleep. This might be enough for an ...
14
votes
0answers
280 views

Does dream recall interfere with “reverse learning”? (Crick and Mitchison's theory of REM sleep)

I've recently became aware of the idea of "reverse learning" that might happen during REM sleep - the brain's attempt to eliminate pathological attractors that might appear in neural networks. The ...
11
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0answers
148 views

Do animals that sleep during the day have a different sleep architecture than those who sleep at night?

A typical hypnogram, delineating the sleep architecture for a (human) mammal looks like A distinct distribution of non-REM and REM sleep can be observed. Is this pattern of sleep cycles ...
6
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0answers
85 views

Is there difference between a memory of a dream and memory of waking experience?

I'm very interested in dreaming and have pretty good dream recall. This makes me able to recall and distinguish hundreds of experience within my memory and label them as "dreams". I'm trying to ...
4
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0answers
27 views

Adaptation to Discrete Perturbation in Sleep?

Generally, are there and how long do lingering affects of polar sleep patterns affect someone? For example, assume someone slept for 2 hours one day and then slept for 14 hours the next. Their 2 day ...
4
votes
0answers
59 views

Can split-brain patients sleep like whales?

Regular split-brain patients still have some remaining connection between the hemispheres, but would it be possible for their hemispheres to fall asleep independent of the other? What about when not ...
4
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0answers
87 views

What is the effect of routine versus demand driven sleeping of babies on long term sleep habits?

Comparing two methods of child raising: Routines: When babies are raised in a framework of a timetable; duration of feeding and nap times are scheduled. Demands: Where babies are demand fed, they ...
3
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0answers
944 views

Is it true that drinking water before bed causes dreams to be more vivid?

Pavan Teja says on Psychtronics: Drink a lot of water. The more water you drink before bed, the more vivid your dreams. Is this true? Is this because I'm more alert not to, you know, and ...
3
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0answers
212 views

How does the body experience free-fall during a hypnic jerk

Today I learned that a sudden jerk that you sometimes experience when you are just about to fall asleep due to a sense of free-fall or weightlessness is called a hypnic jerk. If, while sleeping, I ...
3
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0answers
31 views

When falling asleep does one always start with NREM1?

After my admittedly short research I could not find information which states that if a person is disturbed while their sleeping, let's say in NREM3 phase of their sleep cycle, and wakes up and then ...
2
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0answers
45 views

Can adults adapt to less sleep?

I am asking whether adults, especially in circumstances like a monastery or Zen center, can become able long-term to sleep only about 4 to 5 hours a night? So, that would mean: no children to care ...
2
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0answers
24 views

Is brain more active when you do something in dream or wake up?

If brain activity is measured using EEG, is the brain more active when sleeping and dreaming of doing something or doing the same thing when wake up? Of course, if you do exercise (eg. running) when ...
1
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0answers
28 views

Do we have an “internal timer” when taking naps?

I´m doing some research and can´t find what control some reactions during naps. For example, after 1 year taking the same bus way home, my brain mastered the timing of napping. Wherever i get on, i ...
1
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0answers
33 views

Does sleeping reduce stress?

There seem to be all kinds of relations between sleep and stress, e.g. being stressed reduces your ability to sleep well, but what I cannot find any research on is the simple question of wether or not ...
1
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0answers
37 views

How do afternoon naps fit in with segmented sleep?

Both segmented sleep and afternoon naps are recommended over a monophasic eight-hour block of sleep, but I don't see how they fit in with each other. Segmented sleep is the theory/hypothesis that ...
1
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0answers
45 views

Effect of mid-day sleep on mood and performance

Is there any clearly identifiable reason explaining why sleeping during the day (for longer than 30 minutes) could produce lowered mood, difficulty in concentrating, overall decreased cognitive ...
0
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0answers
3 views

Relation between Sleeping pattern and attention for ADHD people

Question 1: Does sleeping at different times daily affect the attention for ADHD and Non ADHD ? For example let us consider the below scenario, Day 1 : Sleep time is 1:00 AM Day 2 : Sleep time is ...