psychological modern perspectives Flashcards
consciousness
a person’s awareness of everything that is going on around him or her at any given time.
waking consciousness
state in which thoughts, feelings, and sensations are clear and organized and the person feels
altered state of consciousness
state in which there is a shift in the quality or pattern of mental activity as compared to waking consciousness.
circadian rhythm
a cycle of bodily rhythm that occurs over a 24-hour period
microsleeps
brief sidesteps into sleep lasting only a few seconds.
sleep deprivation
any significant loss of sleep, resulting in problems in concentration and irritability.
rapid eye movement sleep (R, REM)
stage of sleep in which the eyes move rapidly under the eyelids and the person is typically experiencing a dream. Voluntary muscles are inhibited so there little or no movement
non-REM (NREM)
sleep any of the stages of sleep that do not include REM.
Muscles not inhibited so person can move around. Goes from lighter stages to a deep restful stage.
sleep paralysis
the inability of the voluntary muscles to move during REM sleep.
REM behavior disorder (RBD)
a rare disorder in which the mechanism that blocks the movement of the volun-tary muscles fails, allowing the person to thrash around and even get up and act out nightmares.
REM rebound
increased amounts of REM sleep after being deprived of REM sleep on earlier nights.
nightmares
bad dreams occurring during REM sleep.
night terrors
relatively rare disorder in which the person experiences extreme fear and screams or runs around during deep sleep without waking fully.
sleepwalking (somnambulism)
occurring during deep sleep, an episode of moving around or walking around in one’s sleep.
insomnia
the inability to get to sleep, stay asleep, or get quality sleep
sleep apnea
disorder in which the person stops breathing for 10 seconds or more.
narcolepsy
sleep disorder in which a person falls immediately into REM sleep during the day without warning.