Consiousness (4b) Flashcards
Activation synthesis model of dreaming
During sleep, the brain has a lot of random activity via brain stem activity that activates the sensory systems of the cortex
- dreams reflect the brains efforts to make sense out of or find meaning in the neural activity that takes place during sleep
Freudian dream theory
Dreams represent the expression of unconscious wishes or desires
Nightmares
Dreams filled with intense anxiety
Nightmare or dream disorder anxiety
Frequent or distressing nightmares
Lucid dreams
The sleeper fully recognizes that he or she is dreaming and occasionally activity guides the outcomes of the dream
Daydreams
Fantasies that occur while one is awake and aware of external reality but is not fully conscious
Chronic sleep loss results in
- general depressed state
- lower immune system
- lower ability to concentrate
- higher incidence of accidents
- lower productivity and higher likelihood of making mistakes
Insomnia
- most common sleep disorder
- difficulty going to sleep or staying asleep
- caused by stress
- more common in older people du to medical conditions, medications, and depression and anxity
Sleep apnea
- second most common sleep disorder
- repeatedly stops breathing during the night leading to frequent awakenings
- possible to have hundreds attacks per night
- can lead to cardiac arrest
Excessive daytime sleepiness
Chronically tried, even if slept well
Narcolepsy
- uncontrollable urge to fall asleep
- suddenly fall into REM keep during the day
-Can last up to 15 minutes - genetic factors involved
- no cure
Delayed sleep phase sydrome
Long delay in ability to fall asleep
Advances sleep phase syndrome
Fall asleep between 6 PM and 9 PM and wake between 2 AM and 5 AM
Restless leg syndrome
Strong urge to move legs before sleep
Periodic limb movements of sleep
Strong urge to move legs during. Sleep
