REM
What does R.E.M. stand for?
Rapid Eye Movement
What does nREM stand for?
Non-Rapid Eye Movement
What kind of eye movements were observed in a dream about climbing up a series of ladders looking up and down as you climb?
How many different stages of sleep are there?
6 - Wake, N1, N2, N3, N4, and REM.
State one of the main conclusions.
-Eye movement is correlated with dream content
-Dreams progress in real time
-Dreaming is associated with REM sleep
What's the definition of REM?
a stage of sleep in which our eyes move rapidly under the lids, which is associated with vivid, visual dreams.
What's the definition of nREM?
the stages of sleep in which our eyes are still. it is also called quiescent sleep. This is not associated with dreaming.
What eye movement is associated with more vivid dreams?
R.E.M. (Rapid Eye Movement)
What happens during N2 sleep stage? (state one)
the body enters a more subdued state including a drop in temperature, relaxed muscles, and slowed breathing and heart rate.
Is dream recall higher in REM or nREM sleep?
REM sleep
REM is closely related to dreaming.
Because you remember dreams more vividly?
nREM sleep is completely different from REM sleep.
Because your eyes move around rapidly in REM?
What kind of eye movement would be observed if you dreamed about watching a movie?
Subtle movements would be seen, seeing as you're analyzing an object rather than a person.
The object being a screen.
What sleep stage is the hardest to wake up from?
Stage N3
Were the 3 hypothesis of the study correct?
Yes - There was a significant association between REM sleep and dreaming, a positive correlation between estimated dream duration and REM period length, and a significant association between eye movement patterns and dream content.
Does the EEG measure different brain wave patterns during REM versus nREM sleep?
No, in the experiment brain waves measured by the EEG were shown to only catch similar brain waves throughout the sleep cycle.
Meaning there was practically no difference.
When participants were awoken from nREM sleep, and went back to sleep, what sleep stage did they return to? nREM, or REM?
nREM sleep
How many rapid eye movements were measured in the results of the experiment?
2-100 Rapid eye movements.
True or false:
nREM sleep is associated with dreams.
False, REM sleep is associated with dreams.
True or false:
Uninterrupted dream stages are typically shorter later in the night.
False, dream stages tend to be longer later in the night.
If you woke up in the middle of the night are you more or less likely to remember a dream then than when you wake up in the morning?
Less likely, according to the study. If woken up in the middle of a sleep spindle recorded by the EEG, you'd more or less recall a feeling rather than the visual contents of a dream.
What lasts longer throughout the night, REM sleep or nREM sleep?
nREM sleep lasts longer, it takes up about 75-80% of the total time spent sleeping.
How long do Rapid Eye Movement stages typically last?
70-104 minutes at a time.
What is the difference between sleep stages 1 and 2?
Stage 1: Your eyes are closed, but it's easy to wake you up. This phase may last for 5 to 10 minutes.
Stage 2: You are in light sleep. Your heart rate slows and your body temperature drops.
On average, how often do people dream/enter REM sleep per night?
4-6 times per night