Sleep Flashcards
Circadian rhythms?
Biological rhythms that occur every 24 hours
What is consciousness x
Awareness of yourself and environment
Infradian rhythms
Biological rhythms that occur once a month or once a season
Ultradian rhythms
Biological rhythms that occur more than once each day
How does sleep deprivation effect us?
Immune system, increase levels of stress, overweight, road deaths
What role does the hypothalamus play in sleep?
It is the control centre for our 24 hour sleep rhythm
What is melatonin?
The hormone that helps regulate the sleep wake cycle
Why do we need sleep?
Because of preservation and restoration
What is stage 1 of sleep?
Lasts 5 minutes, slowed breathing, irregular brainwave patterns. You may not realize you are asleep
Stage 2?
Brainwaves cycle more slowly. Off and on, you will spend over half of your night of sleep in this stage
What are stages 3 and 4
Rejuvenating sleep stages that last 30 minutes
What is rem sleep
Your brain waves pick up a little strength and speed, your eyes move rapidly and you dream vividly considered paradoxical sleep
How many minutes a night do we spend dreaming?
About 100, we all dream every night of our lives
Who contributed to the earliest dream theory?
Sigmund Freud
What are four modern theories of dreaming?
Information processing
Physiological function
Activation synthesis
Cognitive development
Do animals experience REM sleep?
Yes, but we don’t know if they dream
What is insomnia?
Recurring problems falling asleep or staying asleep?
What is sleep apnea?
Repeated awakenings as a result of not being able to breathe. Loud snorers, make overweight over 40
What is narcolepsy?
Uncontrollable sleep attaches, automatically falling into REM sleep
Somnambulism?
Sleepwalking
Night terrors?
Terrifying dreams, seldom remembered
Bruxism?
Teeth grinding
Enuresis?
Bed wetting
What is myoclonus?
Sudden jerk of a body part during stage 1
