5.1, 5.1.1, 5.1.2 Flashcards
Circadian rhythm
The biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle
SCN (suprachiasmatic nucleus) causes the brain’s pineal gland to decrease it’s production of…
Melatonin (sleep-inducing hormone) in the morning and increase it in the evening
REM sleep
Rapid eye movement sleep; a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed (except for minor twitches) but other body systems are active
Alpha waves
The relatively slow brain waves of a relaxed, awake state
Sleep
Periodic, natural loss of consciousness- as distinct from unconsciousness resulting from a coma, general anesthesia or hibernation
Hallucinations
False sensory experiences, such as seeing something in the absence of an external visual stimulus
Delta waves
The large, slow brain waves associated with deep sleep
NREM sleep
Non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep
Sleep patterns can be…
Genetically influenced and culturally influenced
Many students are….
Sleep deprived
Sleep loss can make you….
Fatter
Sleep loss can suppress….
Immune cells
Accidents increase immediately after…
Daylight savings
Sleep….
Protects
Sleep helps us…
Recuperate
