WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. For a deeper dive into the #science, see our detailed analysis across 25 species (published in Frontiers): https://t.co/5ND0VIFyVy https://t.co/cuE8S0NVkd
The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex.
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May 2021 – Jun 2025Where it's discussed
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X / Twitter38 posts
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AI synopsis
What people are saying
Discussion examples include users highlighting the rapid visual cortex takeover and how dreaming might prevent this, with phrases like 'dreams add noise' or 'defend the visual cortex' illustrating enthusiasm and curiosity. The tone and detailed references indicate strong agreement, interest, engagement, and perceived importance of the research.
Most discussions support the hypothesis that REM sleep's role includes protecting the visual cortex from takeover, as seen in phrases like 'dreaming serves to keep the rest of the brain from cannibalizing it' and positive references to the theory.
Comments show high curiosity and engagement, with users calling the theory 'interesting,' asking about mechanisms, and sharing related research, indicating strong interest.
Many posts reference detailed studies, share links, and participate in journal club discussions, reflecting deep engagement and active consideration of the research's implications.
The theory appears to influence scientific and public discussions, prompting broader questions about sleep and brain plasticity, demonstrating a significant impact on understanding sleep functions.
Abstract in brief
- Brain regions defend their activity territory, and if that activity decreases (like in blindness), neighboring regions can quickly take over.
- Recent findings show this takeover can happen within an hour, leading to a new hypothesis about REM sleep's role in protecting visual system activity.
- Studies across 25 primate species reveal a positive correlation between REM sleep and brain plasticity, with both increasing as species are more evolutionarily related to humans and decreasing with age.
Top posts
Most liked on X and BlueskyÇok ilgi çekici. Neden rüya görüyoruz? https://t.co/ToAoY3F2tf
New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Regions of the brain maintain their territory with continuous activity: if activity slows or stops (e.g., because of… https://t.co/sYF7A46QQJ #Neuroscience
@social_brains Hi Matt - all data in here: https://t.co/5ND0VIFyVy Keep me posted on your thoughts ~
Why do we dream?! Two recent papers propose cool hypotheses. 1) dreams add random noise to help us generalize and stop our brains from "overfitting" https://t.co/6Zn0L2VR4t 2) dreams defend the visual cortex from encroachment by other brain regions https://t.co/fN4GCiZc13 ‼️
This week we are having a journal club chat about this paper by @davideagleman from this past winter: "The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex" https://t.co/k9dYQP72pa
All mentions
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@huzunkar @sandalsonfeet @RichardDawkins Have you encountered this explanation of why we dream? https://t.co/NvmqzgLcmS
@sosadoesit @qtemb @erikphoel any spatially close mechanisms of the brain https://t.co/1cOmO0ogk7 https://t.co/85M8tOCLIH
Frontiers | The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex https://t.co/3YIVElfVBC
@matthewcobb Here is a link. It's Eagleman and Vaughn (2021): https://t.co/ll9CG8zOwF
@FanParticle @BecomingCritter “Takeover of the visual cortex” apparently happens so rapidly that these authors speculate dreaming serves to keep the rest of the brain from cannibalizing it https://t.co/YdZpNG5g7Y
Read more about it: https://t.co/AEEWb0AzEQ
@anilkseth @packyM @cunningstudent @GlobeIdeas @kevin2kelly @erikphoel Another interesting paper is https://t.co/XxUd5YNFky by @davideagleman and @DrDonVaughn
RT @WildlifeMcCoy: Why do we dream?! Two recent papers propose cool hypotheses. 1) dreams add random noise to help us generalize and stop…
Why do we dream?! Two recent papers propose cool hypotheses. 1) dreams add random noise to help us generalize and stop our brains from "overfitting" https://t.co/6Zn0L2VR4t 2) dreams defend the visual cortex from encroachment by other brain regions https://t.co/fN4GCiZc13 ‼️
Frontiers | The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex https://t.co/ORY175vICG
@social_brains Hi Matt - all data in here: https://t.co/5ND0VIFyVy Keep me posted on your thoughts ~
@pati_gallardo This one is also interesting: https://t.co/08PPVHauQi
Do you #dream? Yes? Congrats! The visual regions of your brain live to see another day. Really cool "defensive activation theory" on why we dream = REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex https://t.co/duzlhtJAts
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
RT @Smousali1974: https://t.co/z9zho0T6Xk
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
https://t.co/z9zho0T6Xk
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
RT @davideagleman: WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. F…
WHY DO BRAINS DREAM? Exactly 1 year ago @DrDonVaughn and I shared our new theory to a wider audience in Time Magazine. For a deeper dive into the #science, see our detailed analysis across 25 species (published in Frontiers): https://t.co/5ND0VIFyVy https://t.co/cuE8S0NVkd
@hardmaru @schulzb589 @NicoChauvin74 https://t.co/5ND0VIFyVy
RT @pir_anna: Çok ilgi çekici. Neden rüya görüyoruz? https://t.co/ToAoY3F2tf
RT @pir_anna: Çok ilgi çekici. Neden rüya görüyoruz? https://t.co/ToAoY3F2tf
Çok ilgi çekici. Neden rüya görüyoruz? https://t.co/ToAoY3F2tf
RT @CompCrossCognC: This week we are having a journal club chat about this paper by @davideagleman from this past winter: "The Defensive Ac…
This week we are having a journal club chat about this paper by @davideagleman from this past winter: "The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex" https://t.co/k9dYQP72pa
The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex https://t.co/B3lHPjgmU3
RT @FrontNeurosci: New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Region…
RT @FrontNeurosci: New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Region…
RT @FrontNeurosci: New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Region…
RT @FrontNeurosci: New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Region…
RT @FrontNeurosci: New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Region…
RT @FrontNeurosci: New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Region…
New Research: The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex: Regions of the brain maintain their territory with continuous activity: if activity slows or stops (e.g., because of… https://t.co/sYF7A46QQJ #Neuroscience
The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex https://t.co/dyth1NCxXp