All Flashcards
What are the stages of the sleep cycle?
NREM-1, NREM-2, NREM-3, NREM-2, NREM-1, REM, then repeat.
What is the evolutionary perspective on sleep?
Sleep serves functions like protection, restoration, memory consolidation, creative thinking, and growth.
What is the function of NREM-3 sleep?
Deep sleep characterized by delta waves, growth hormone release, and reduced heart rate/respiration.
What is paradoxical sleep?
Another name for REM sleep, characterized by high brain activity and muscle paralysis.
What is Freud's theory of dreaming?
Dreams have manifest (actual storyline) and latent (underlying symbolic) content.
Describe the memory filing theory of dreaming.
Dreams help us process and store memories.
Describe the neural pathway development theory of dreaming.
Dreams help develop and preserve neural pathways.
Describe the neural static theory of dreaming.
Dreams are a way to make sense of random neural activity.
Describe the cognitive development theory of dreaming.
Dreams reflect our cognitive development.
What is the hypnagogic state?
The transition from relaxed wakefulness to sleep (NREM-1).
What are K-complexes?
Brain wave patterns that occur during NREM-2 sleep.
What is plasticity?
The brain's ability to change and adapt throughout life.
What is jet lag?
Disruption of the circadian rhythm when traveling across time zones.
How is the circadian rhythm related to jet lag?
Jet lag is caused by the disruption of the circadian rhythm when traveling across time zones.
How can understanding sleep stages help treat sleep disorders?
Identifying the affected sleep stage can help tailor treatments for disorders like insomnia or sleep apnea.
How does sleep deprivation affect cognitive functions?
Sleep deprivation impairs concentration, memory, and problem-solving abilities.
How can knowledge of REM sleep benefit students?
Understanding that memory consolidation occurs during REM sleep can encourage better sleep habits for improved learning.
How is melatonin used to treat sleep problems?
Melatonin supplements can help regulate the sleep-wake cycle and improve sleep quality.
How does the SCN regulate sleep?
The SCN responds to light, signaling the pineal gland to adjust melatonin production and regulate the sleep-wake cycle.
How do sleep studies use EEGs?
EEGs measure brain activity during sleep studies to identify sleep stages and diagnose sleep disorders.