Dream Quote by Carl Sagan
““Dreams are associated with a state called REM sleep, the abbreviation standing for rapid eye movement. The REM state is strongly correlated with sexual arousal. Experiments have been performed in which sleeping subjects are awakened whenever REM state emerges, while members of a control group are awakened just as often each night but not when they're dreaming. After some days, the control group is a little groggy, but the experimental group - the ones who are prevented from dreaming - is hallucinating in daytime. It's not that a few people with a particular abnormality can be made to hallucinate in this way; anyone is capable of hallucinations.””
About This Quote
REM sleep, linked to dreaming and sexual arousal, appears essential for preventing daytime hallucinations; disrupting it leads to perceptual disturbances.
In simple terms: Dreaming during REM sleep helps keep the mind stable; stopping it can cause hallucinations.
Key Takeaway
Protect healthy REM sleep to maintain mental clarity.
Themes
sleep
neuroscience
dreams
mental health
biology
Mood
curious
cautious
Type
scientific
informative
When to use this quote
- clinical studies
- sleep deprivation experiments
- mental health assessments
Key Concepts
REM physiology
cognitive function
psychology
sleep hygiene
Questions to Reflect On
- What does REM sleep reveal about brain function?
- How might dream loss affect daily cognition?
A Different Perspective
Hallucinations may also arise from other causes, not solely REM loss.
![“[ When a religious couple wrote to Sagan about fulfilled prophecies, he wrote back in May 1996 :] If ‘fulfilled prophecy’ is your criterion, why do you not believe in materialistic science, which has an unparalleled record of fulfilled prophecy? Consider, for example, eclipses.” quote by Carl Sagan](https://sms4smile.com/quotes/img-quotes/875/carl-sagan-160_belief_when-a-religious-couple-wrote-to-sagan-a_25095.jpg)
