Psych 100 Crosby Exam 2. | Exam Revision Questions And Correct
Answers | Graded A+ | 2025 Update |
consciousness - Answer -a person's awareness of everything that is going on around him or her at
any
given moment -- used to organize behavior
waking consciousness - Answer --thoughts, feelings, sensations are clear
-the person is alert and experiences are clear
-able to use information to direct our behaviors and senses
altered state of consciousness - Answer --shift of consciousness from waking
-shift in quality or pattern in mental activity
-changes in alertness, divided consciousness
ex. SLEEP
circadian rhythm - Answer -a cycle of bodily rhythm that occurs over a 24 hour period
hypothalamus - Answer -tiny section of brain that influences the glandular system
suprachiasmatic nucleus - Answer -internal clock that tells people to wake up/fall asleep
-sensitive to light
-helps regulate rhythm
- stimulates release of melatonin
sleep deprivation - Answer -any significant loss of sleep
consequences of sleep deprivation - Answer --cognitive performances
-emotional reactivity = more emotional to events, shorter temper
-physical health = life expectancy decrease, obesity
WHY WE SLEEP: adaptive theory - Answer -as humans, we evolve patterns of sleep to aid in
survival
WHY WE SLEEP: restorative theory - Answer -relationship between our sleep and health
-feel better when we sleep
-glial cells, hormones, bodily processes
, -sleep allows body to rejuvenate
WHY WE SLEEP: memory consolidation - Answer -sleep is the time to decide what memories to
keep and
what memories can go away
WHY WE SLEEP: creative thinking/problem solving - Answer -sleep provides us time to do
creative
thinking
WHY WE SLEEP: growth - Answer -growth hormones are expressed that help us to grow, regulate
body
weight
stages of sleep - Answer -REM sleep and non-REM sleep
non-REM sleep - Answer --quiet sleep
-activity of brain is reduced
stages of non-REM sleeps - Answer -stage 1: light sleep, hypnic jerk, hypnagogic images
stage 2: temperature, breathing and heart rate decreases; sleep spindles
-body functions decline
-not hard to wake up
stage 3: growth hormones are released; hard to wake up
-restorative processes
REM sleep (Rapid Eye Movement) - Answer --active sleep
-use EEG to help determine what stage of sleep
-most of dreams occur 90%
REM paralysis - Answer -the inability of the voluntary muscles to move during REM sleep
developmental differences in REM sleep - Answer -REM sleep decreases over time
-age 0-4: 50% in REM sleep (bc neuron connections are forming)
-adults: 20% in REM sleep
REM behavior disorder - Answer -mechanism that typically blocks the movement of voluntary
muscles
fails, allowing the person to thrash around and get up and act out nightmares
-paralysis that normally occurs during REM sleep is incomplete or absent
Answers | Graded A+ | 2025 Update |
consciousness - Answer -a person's awareness of everything that is going on around him or her at
any
given moment -- used to organize behavior
waking consciousness - Answer --thoughts, feelings, sensations are clear
-the person is alert and experiences are clear
-able to use information to direct our behaviors and senses
altered state of consciousness - Answer --shift of consciousness from waking
-shift in quality or pattern in mental activity
-changes in alertness, divided consciousness
ex. SLEEP
circadian rhythm - Answer -a cycle of bodily rhythm that occurs over a 24 hour period
hypothalamus - Answer -tiny section of brain that influences the glandular system
suprachiasmatic nucleus - Answer -internal clock that tells people to wake up/fall asleep
-sensitive to light
-helps regulate rhythm
- stimulates release of melatonin
sleep deprivation - Answer -any significant loss of sleep
consequences of sleep deprivation - Answer --cognitive performances
-emotional reactivity = more emotional to events, shorter temper
-physical health = life expectancy decrease, obesity
WHY WE SLEEP: adaptive theory - Answer -as humans, we evolve patterns of sleep to aid in
survival
WHY WE SLEEP: restorative theory - Answer -relationship between our sleep and health
-feel better when we sleep
-glial cells, hormones, bodily processes
, -sleep allows body to rejuvenate
WHY WE SLEEP: memory consolidation - Answer -sleep is the time to decide what memories to
keep and
what memories can go away
WHY WE SLEEP: creative thinking/problem solving - Answer -sleep provides us time to do
creative
thinking
WHY WE SLEEP: growth - Answer -growth hormones are expressed that help us to grow, regulate
body
weight
stages of sleep - Answer -REM sleep and non-REM sleep
non-REM sleep - Answer --quiet sleep
-activity of brain is reduced
stages of non-REM sleeps - Answer -stage 1: light sleep, hypnic jerk, hypnagogic images
stage 2: temperature, breathing and heart rate decreases; sleep spindles
-body functions decline
-not hard to wake up
stage 3: growth hormones are released; hard to wake up
-restorative processes
REM sleep (Rapid Eye Movement) - Answer --active sleep
-use EEG to help determine what stage of sleep
-most of dreams occur 90%
REM paralysis - Answer -the inability of the voluntary muscles to move during REM sleep
developmental differences in REM sleep - Answer -REM sleep decreases over time
-age 0-4: 50% in REM sleep (bc neuron connections are forming)
-adults: 20% in REM sleep
REM behavior disorder - Answer -mechanism that typically blocks the movement of voluntary
muscles
fails, allowing the person to thrash around and get up and act out nightmares
-paralysis that normally occurs during REM sleep is incomplete or absent
