PSYC 2000 Exam 2 LSU Knapp
Questions and Answers 100% Pass
Circadian rythm - ✔✔Cyclical changes that occur on a roughly 24 hour basis in many
biological processes
Biological clock - ✔✔Term for the area of the hypothalamus that is responsible for
controlling our level of alertness
Sleep debt - ✔✔Missing sleep takes a toll on your body and must be made up
Mental effects: mild depression, difficulty learning new information, problems paying
attention, problems thinking clearly, and slowed reaction time
Physical effects: weight gain, high blood pressure, diabetes, and heart problems
Stage 1 of sleep - ✔✔Brain activity powers down by 50% or more creating theta waves.
Lasts about 5-10 minutes. (light sleep "no I wasn't actually sleeping")
Stage 2 of sleep - ✔✔Brain waves slow down even more. As brain activity decreases,
heart rate slows down, body temperature decreases, muscles relax, and eye movements
cease. About 65% of the sleep cycle is in stage 2
Brittie Donald, All Rights Reserved © 2025 1
, Stages 3 and 4 of sleep - ✔✔
Stage 5 of sleep - ✔✔REM (Rapid Eye Movement) sleep. Brain is most active during this
stage, creating vivid dreaming. Lasts about 10-20 minutes (20-25%) before the cycle
repeats
Paradoxical Sleep - ✔✔Sometimes what REM sleep is called because the brain is active,
yet the body isn't. (The sleeper is paralyzed during REM, otherwise they'd act out their
dreams)
Insomnia - ✔✔Difficulty in falling or staying asleep
Night terrors - ✔✔Episodes of screaming, perspiring, and confusion followed by a
return to a deep sleep. Typically harmless and most often occurs in children
Sleepwalking and sexsomnia - ✔✔walking while fully asleep... Or having sex
Freud's dream protection theory - ✔✔dreams are the "guardians of sleep." They require
interpretation to reveal the true meanings.
Manifest Content - ✔✔According to Freud, dreams details
Latent content - ✔✔According to Freud, the dream's hidden meaning
Activation synthesis theory - ✔✔theory that dreams reflect inputs from the brain
activation originating in the pons, which the fore brain then attempts to weave into a
story, which is why dreams are rarely coherent or logical
Brittie Donald, All Rights Reserved © 2025 2
Questions and Answers 100% Pass
Circadian rythm - ✔✔Cyclical changes that occur on a roughly 24 hour basis in many
biological processes
Biological clock - ✔✔Term for the area of the hypothalamus that is responsible for
controlling our level of alertness
Sleep debt - ✔✔Missing sleep takes a toll on your body and must be made up
Mental effects: mild depression, difficulty learning new information, problems paying
attention, problems thinking clearly, and slowed reaction time
Physical effects: weight gain, high blood pressure, diabetes, and heart problems
Stage 1 of sleep - ✔✔Brain activity powers down by 50% or more creating theta waves.
Lasts about 5-10 minutes. (light sleep "no I wasn't actually sleeping")
Stage 2 of sleep - ✔✔Brain waves slow down even more. As brain activity decreases,
heart rate slows down, body temperature decreases, muscles relax, and eye movements
cease. About 65% of the sleep cycle is in stage 2
Brittie Donald, All Rights Reserved © 2025 1
, Stages 3 and 4 of sleep - ✔✔
Stage 5 of sleep - ✔✔REM (Rapid Eye Movement) sleep. Brain is most active during this
stage, creating vivid dreaming. Lasts about 10-20 minutes (20-25%) before the cycle
repeats
Paradoxical Sleep - ✔✔Sometimes what REM sleep is called because the brain is active,
yet the body isn't. (The sleeper is paralyzed during REM, otherwise they'd act out their
dreams)
Insomnia - ✔✔Difficulty in falling or staying asleep
Night terrors - ✔✔Episodes of screaming, perspiring, and confusion followed by a
return to a deep sleep. Typically harmless and most often occurs in children
Sleepwalking and sexsomnia - ✔✔walking while fully asleep... Or having sex
Freud's dream protection theory - ✔✔dreams are the "guardians of sleep." They require
interpretation to reveal the true meanings.
Manifest Content - ✔✔According to Freud, dreams details
Latent content - ✔✔According to Freud, the dream's hidden meaning
Activation synthesis theory - ✔✔theory that dreams reflect inputs from the brain
activation originating in the pons, which the fore brain then attempts to weave into a
story, which is why dreams are rarely coherent or logical
Brittie Donald, All Rights Reserved © 2025 2
