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
Insomnia
Sleep apnea
Excessive daytime sleepiness
Chronically tried, even if slept well
Narcolepsy
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
Sleepwalking
Mostly occurs during the first three hours of sleep
- eventually returns to bed
- inherited
Night terrors
Occurs in stages 3 and 4 of sleep
- child screams in panic; goes back to sleep immodestly and does not remember the event in the more
- resolves by adolescent
- may be genetic
REM sleep behaviour diorder