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Rat brains provide even more evidence our brains operate near tipping point

45 点作者 dkoston将近 6 年前

5 条评论

ssivark将近 6 年前
Ha, interesting timing! This has been my personal research topic this week, and I&#x27;ve been digging through the literature trying to get a sense of how thorough these experimental results are, and the theoretical underpinnings of neuronal criticality.<p>Here&#x27;s a very nice (slightly dated, 2012) review of the subject [1]. With it&#x27;s conversational tone, it&#x27;s quite a breezy read, even for non-experts. For those who are jaded of power laws and criticality being bandied about willy-nilly, this article nicely digs a little deeper.<p>1: <a href="https:&#x2F;&#x2F;www.frontiersin.org&#x2F;articles&#x2F;10.3389&#x2F;fphys.2012.00163&#x2F;full" rel="nofollow">https:&#x2F;&#x2F;www.frontiersin.org&#x2F;articles&#x2F;10.3389&#x2F;fphys.2012.0016...</a>
astazangasta将近 6 年前
This seems like hooey to me. I mean power laws are everywhere, not just in phase transitions, and they seem to be struggling to identify what the &quot;phases&quot; are in the brain that the &quot;power law&quot; they claim to be observing result from. Post-hoc reasoning if ever.
aitchnyu将近 6 年前
Makes me nostalgic when I discovered a trove of chaos&#x2F;complexity books in the college library, apparently the most represented topic in the science shelves as of 2008. Knowledgeable idiot warning. I was impressed about human brains existing at the edge of chaos. It does not go over one edge, its a system that has the opposite property of the butterfly effect: its state is buffered against impressions and strong impressions may move it to another stable state. Over the other edge: a normal brain plots as chaotic brainwaves while an epileptic plots as regular phases.
dkoston将近 6 年前
It would seem logical that this is more of “our brains can get overloaded and must shed the extra chaos” than we operate near a specific tipping point all the time. In a system that expends energy to do its job, a well designed system would try to regulate energy usage by optimizing on-the-fly and discarding activities using too much energy or energy in an inefficient way.
rafaelvasco将近 6 年前
My vision on this: The thing is we can&#x27;t say our brains operate at tipping point since we don&#x27;t understand the brain fully yet. And won&#x27;t for a long time. We haven&#x27;t realized the full capacity of the brain yet, far from it. So, no, it most likely doesn&#x27;t operate at tipping point for the majority of people.
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