PSYCH 100 Exam 3 CROSBY PSU. | Exam Revision Questions
And Correct Answers | Graded A+ | 2025 Update |
circadian rhythm - Answer -a cycle of bodily rhythm that occurs over a 24-hour period
- sleep wake cycle
REM Sleep - Answer -- rapid eye movement
-eyes moving under eyelids
-increase in body function (ex: heartbeat)
- 90% of dreaming
- REM paralysis
Stages of Sleep: Stage 1 - Answer -NonREM
light sleep
hypnic jerk/hypnic image
quiet sleep
Stages of Sleep: Stage 2 - Answer -temperature, breathing, and heart rate decrease; sleep spindles
Stages of Sleep: Stage 3 - Answer -growth hormones released, hard to week up
insomnia - Answer -inability to fall asleep, stay asleep, and get good quality sleep
narcolepsy - Answer -person immediately falls in REM sleep during the day without warning,
triggered by
emotions
nightmares - Answer -bad dreams arousing feelings of horror, helplessness, sorrow,
occur during REM sleep during the second half of the night
people remember nightmares
often related to day residue
adaptive theory - Answer -animals and humans have evolved sleep patterns to avoid predators by
sleeping when predators are most active
restorative theory - Answer -sleep is necessary for physical health of our body
, memory consolidation - Answer -we are deciding what info needs to be kept and what needs to be
discarded during sleep
creative thinking/problem solving - Answer -occurs during REM sleep
growth - Answer -hormones expressed during sleep influence growth and body weight
dreams - Answer --provide access to the unconscious
-manifest vs latent content
-spikes in brain activity: visuospatial regions (occipital lobe), motor cortex (frontal lobe),
hippocampus
(memory), amygdala/cingulate cortex (emotion)
sensation - Answer -process that occurs when special receptions in the sense organs are activated,
allowing outside stimuli to become neural signals in the brain
perception - Answer -method by which the sensations experienced at any given moment are
interpreted
and organized in some meaningful fashion
top-down processing - Answer -drawing prior knowledge from your mind to better understand new
info¤t situation
bottom-up processing - Answer -taking in information and trying to make sense of it, building up
towards
cortex
just noteable different - Answer -smallest difference between two stimuli detectable 50% of the
time,
constant proportion of change, not a constant amount of change
absolute threshold - Answer -least energy for correct stimulus detection 50% of the time, the lowest
level of stimulation a person can reliably detect
corena - Answer -focuses light coming into the eye, project it back to the retina
iris - Answer -muscle that controls the size of the pupil
lens - Answer -changes shape to bring objects into focus
retina - Answer -contains photoreceptor cells (final stop for light)
layer 1: light passes through ganglion and bipolar cells
layer 2: it reaches and stimulates rods and cones
And Correct Answers | Graded A+ | 2025 Update |
circadian rhythm - Answer -a cycle of bodily rhythm that occurs over a 24-hour period
- sleep wake cycle
REM Sleep - Answer -- rapid eye movement
-eyes moving under eyelids
-increase in body function (ex: heartbeat)
- 90% of dreaming
- REM paralysis
Stages of Sleep: Stage 1 - Answer -NonREM
light sleep
hypnic jerk/hypnic image
quiet sleep
Stages of Sleep: Stage 2 - Answer -temperature, breathing, and heart rate decrease; sleep spindles
Stages of Sleep: Stage 3 - Answer -growth hormones released, hard to week up
insomnia - Answer -inability to fall asleep, stay asleep, and get good quality sleep
narcolepsy - Answer -person immediately falls in REM sleep during the day without warning,
triggered by
emotions
nightmares - Answer -bad dreams arousing feelings of horror, helplessness, sorrow,
occur during REM sleep during the second half of the night
people remember nightmares
often related to day residue
adaptive theory - Answer -animals and humans have evolved sleep patterns to avoid predators by
sleeping when predators are most active
restorative theory - Answer -sleep is necessary for physical health of our body
, memory consolidation - Answer -we are deciding what info needs to be kept and what needs to be
discarded during sleep
creative thinking/problem solving - Answer -occurs during REM sleep
growth - Answer -hormones expressed during sleep influence growth and body weight
dreams - Answer --provide access to the unconscious
-manifest vs latent content
-spikes in brain activity: visuospatial regions (occipital lobe), motor cortex (frontal lobe),
hippocampus
(memory), amygdala/cingulate cortex (emotion)
sensation - Answer -process that occurs when special receptions in the sense organs are activated,
allowing outside stimuli to become neural signals in the brain
perception - Answer -method by which the sensations experienced at any given moment are
interpreted
and organized in some meaningful fashion
top-down processing - Answer -drawing prior knowledge from your mind to better understand new
info¤t situation
bottom-up processing - Answer -taking in information and trying to make sense of it, building up
towards
cortex
just noteable different - Answer -smallest difference between two stimuli detectable 50% of the
time,
constant proportion of change, not a constant amount of change
absolute threshold - Answer -least energy for correct stimulus detection 50% of the time, the lowest
level of stimulation a person can reliably detect
corena - Answer -focuses light coming into the eye, project it back to the retina
iris - Answer -muscle that controls the size of the pupil
lens - Answer -changes shape to bring objects into focus
retina - Answer -contains photoreceptor cells (final stop for light)
layer 1: light passes through ganglion and bipolar cells
layer 2: it reaches and stimulates rods and cones
