#1
Which stage of sleep is associated with rapid eye movement (REM)?
Stage 1
ExplanationInitial stage of sleep where REM occurs.
#2
What is the term for the inability to move during sleep?
Sleep paralysis
ExplanationCondition where voluntary muscles are immobile during sleep.
#3
What is the term for a sudden awakening from sleep accompanied by intense fear?
Night terror
ExplanationEpisodes of intense fear during sleep.
#4
Which stage of sleep is often referred to as 'deep sleep'?
Stage 3
ExplanationDeepest non-REM sleep stage.
#5
What is the term for the experience of feeling unable to move just before falling asleep or upon waking?
Sleep paralysis
ExplanationCondition causing temporary immobility.
#6
Which theory suggests that dreams serve a physiological function?
Activation-synthesis theory
ExplanationDreams are the brain's attempt to make sense of random neural activity.
#7
Who proposed the idea of the collective unconscious in dreams?
Carl Jung
ExplanationPsychologist who introduced the concept of the collective unconscious.
#8
Which part of the brain is particularly active during REM sleep?
Amygdala
ExplanationBrain region involved in emotional processing.
#9
What is the term for the phenomenon where people believe they slept well, but their sleep was actually disrupted?
Paradoxical insomnia
ExplanationPerception of good sleep despite experiencing sleep disruptions.
#10
Which neurotransmitter plays a role in the regulation of REM sleep and dreaming?
Acetylcholine
ExplanationNeurotransmitter involved in REM sleep initiation.
#11
Which neurotransmitter is associated with the regulation of sleep-wake cycles?
Serotonin
ExplanationNeurotransmitter involved in sleep regulation and mood.
#12
Which hormone is primarily responsible for regulating the sleep-wake cycle?
Melatonin
ExplanationHormone that regulates sleep-wake cycles.
#13
What phenomenon is characterized by excessive daytime sleepiness and sudden muscle weakness, often triggered by strong emotions?
Narcolepsy
ExplanationNeurological disorder causing sudden sleep attacks.
#14
What phenomenon is characterized by the temporary inability to move or speak while falling asleep or waking up?
Sleep paralysis
ExplanationTransient loss of muscle control during sleep transitions.
#15
What term refers to the phenomenon of waking up multiple times during the night and having trouble falling back asleep?
Fragmented sleep
ExplanationSleep disruption characterized by frequent awakenings.