Sleep
Definition
Sleep is a naturally recurring state of mind and body characterized by altered consciousness, relatively inhibited sensory activity, reduced muscle activity and inhibition of nearly all voluntary muscles.
Analogy
Think of sleep like your phone's nightly recharge. Just as your phone needs to be plugged in to restore its battery, your body needs sleep to restore energy, consolidate memories, repair tissues, etc.
Related terms
REM Sleep: Rapid Eye Movement (REM) sleep is a stage of sleep characterized by quick random movements of eyes, dreaming and bodily movement. It's when most vivid dreams occur.
Non-REM Sleep: This is the part of sleep that consists of stages 1-3. It ranges from light dozing off (stage 1) to deep restorative sleep (stage 3).
Insomnia: A common sleep disorder that can make it hard to fall asleep or stay asleep or cause you to wake up too early and not be able to get back to sleep.
"Sleep" appears in:
Study guides (1)
Practice Questions (17)
What is the relationship between sleep and memory consolidation in psychology?
How does concept of entropy from thermodynamics apply to neural activity during sleep?
Which tool would most effectively allow researchers to measure brain wave patterns during sleep?
What part of the brain is primarily responsible for regulating basic survival functions like hunger and sleep?
What evidence furthers our understanding that sleep aids memory consolidation?
Which theory suggests that dreams are the brain's way of making sense of random neural activity during sleep?
Which theory suggests that dreams are the byproduct of random neural activity in the brain during sleep?
Who was the pioneer of the concept that sleep is a restorative process?
What term describes the period of sleep in which most dreams occur and brain activity closely resembles wakefulness?
Which type of sleep is most associated with vivid dreaming?
How could one undermine the consolidation theory stating that sleep aids memory storage?
How does sleep affect consolidation of declarative memories?
How does sleep contribute to the process of memory consolidation?
What could be a unique method to examine if sleep impacts memory retrieval?
What is one specific way that sleep contributes to memory consolidation?
How does sleep impact memory consolidation?
How might researchers examine the effect of sleep on procedural memory consolidation?
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