Sleep & Drugs (Unit 2 Pt 2) Flashcards
(43 cards)
Circadian rhythm
Our biological clock
REM sleep
AKA paradoxical sleep, vivid dreams commonly occur but you are essentially paralyzed
Alpha waves
The relatively slow brain waves of a relaxed but awake state
NREM sleep
Encompasses all sleep stages except for REM sleep
Hallucinations happen in what sleep stage
NREM-1
Hypnagogic sensations
A jerking or feeling of falling or floating while transitioning to sleep
Delta waves
The large slow brain waves associated with deep sleep (NREM-3)
Suprachiasmatic nucleus
(SCN) a pair of cell clusters in the hypothalamus that controls circadian rhythm.
Insomnia
Recurring problems In falling or staying asleep
Narcolepsy
A sleep disorder characterized by uncontrollable sleep attacks
Sleep apnea
A sleep disorder characterized by temporary cessations of breathing during sleep
Night terrors
Occurs during NREM-3 sleep, high arousal and an appearance of being terrified
Manifest content
The storyline of a dream
Latent content
The underlying meaning of a dream
Sleep theories
Freuds wish fulfillment
Info-processing
Physiological function
Activation synthesis
Cognitive development
REM rebound
The tendency for REM sleep to increase following REM sleep deprivation
Freuds wish fulfillment theory
Dreams preserve sleep and provide a “psychic safety value”
Information processing dream theory
Dreams held us sort out the days events and consolidate memories
Inattentional blindness
The inability to see an object or person in our midst, due to our attention being directed elsewhere
Change blindness
When something changes and we don’t notice
Physiological function dream theory
Stimulation from REM sleep may help us preserve and develop neural pathways
Activation-synthesis dream theory
REM sleep triggers neural activity that evokes random visual memories, that our brain weaves into dreams/stories
Cognitive development dream theory
A dreams content reflects dreamers levels of cognitive development
Psychoactive drugs
A chemical substance that alters perceptions and mood