Sleep and dreaming 04.02

Definition of sleep

Rapidly reversible state of behavioral quiescence and greatly reduced sensory responsiveness to environmental stimuli.

What is an EEG

Reveals brainwaves

Electrooculogram

Record rapid eye movements seen during rapid eye movement

what does an EMG do

Detects loss of activity in neck muscles during sleep

What stage of sleep has vivid dreaming

REM sleep

What brainwaves happen during deep sleep

Delta waves

what does the hypothalamus do in sleep

Helps to maintain homeostasis during sleep.

What is the push and pull mechanisms in the hypothalamus, and how do they interact

Wake systems and sleep systems. they inhibit each other

What is narcolepsy

Frequent and intense attacks of sleep. Can last 5-30 mind at random times throughout the day.

What are zeitgebers in circadian rhythms

Environmental cues that help our circadian rhythm

wha part of the brain has the circadian clock

Suprachiasmatic nucleus

Where does melatonin come from and what is its role

made in the pineal gland, which comes in waves to promote sleep.

if I got 8 hours of sleep, what does it have on my memory?

Preparing the brain to remember, and beneficial for after learning to retain the information.