#1
Which stage of sleep is most associated with dreaming?
REM Sleep
ExplanationRapid Eye Movement (REM) sleep is characterized by vivid dreaming.
#2
What is the primary hormone that regulates sleep-wake cycles?
Melatonin
ExplanationMelatonin is the hormone responsible for regulating sleep-wake cycles.
#3
How does blue light exposure before bedtime affect sleep?
It suppresses melatonin production
ExplanationBlue light exposure before bedtime inhibits the production of melatonin, disrupting sleep.
#4
Which of the following factors is NOT known to directly affect sleep quality?
Hair color
ExplanationHair color does not directly impact sleep quality.
#5
What impact does sleep deprivation have on emotional regulation?
Worsens mood and emotional responses
ExplanationSleep deprivation often leads to worsened mood and emotional regulation.
#6
During which sleep stage does sleepwalking most commonly occur?
Deep Sleep (NREM Stage 3)
ExplanationSleepwalking typically occurs during deep sleep, also known as NREM Stage 3.
#7
What phenomenon describes the sensation of falling that can jerk you awake?
Hypnic Jerk
ExplanationHypnic jerk refers to the sudden sensation of falling experienced during sleep.
#8
Which of the following is NOT a common sleep disorder?
Hypersomnia
ExplanationHypersomnia is not a sleep disorder; it refers to excessive daytime sleepiness.
#9
What is the term for vivid, bizarre dreams that occur during REM sleep?
REM Dreams
ExplanationREM dreams are characterized by vivid and often bizarre content and occur during REM sleep.
#10
What is the function of delta waves in sleep?
To represent deep, restorative sleep
ExplanationDelta waves signify deep, restorative sleep.
#11
Which theory suggests dreams are a mental consolidation of learning and memory?
Information-Processing Theory
ExplanationInformation-Processing Theory proposes that dreams help consolidate and process information.
#12
Which factor does NOT influence dream content?
Physical Exercise
ExplanationPhysical exercise does not directly influence dream content.
#13
What percentage of their sleep do infants spend in REM sleep?
About 50%
ExplanationInfants spend roughly half of their sleep time in REM sleep.
#14
What role does the suprachiasmatic nucleus (SCN) play in sleep?
It acts as the body's master circadian clock
ExplanationThe SCN serves as the body's master circadian clock, regulating the sleep-wake cycle.
#15
What stage of sleep is associated with the body repairing tissues and strengthening the immune system?
Deep Sleep (NREM Stage 3)
ExplanationDeep sleep, particularly NREM Stage 3, is associated with tissue repair and immune system strengthening.