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Right. There are enough cases of extreme neuroplasticity following lobotomies, even hemispherectomies, that this case doesn’t seem too surprising. It is still f
by pawsforthought 4y ago
Right. There are enough cases of extreme neuroplasticity following lobotomies, even hemispherectomies, that this case doesn’t seem too surprising. It is still fascinating though, that our brains are so malleable and self-reconfiguring.
- mixologic 4y agoMakes me wonder if there is a part of the brain thats actually responsible for reconfiguring/responding to abnormal situations.
- yjftsjthsd-h 4y agoMy understanding is that the answer is probably "all of it"; the brain is built from self organizing pieces (neurons, mostly)
- dilawar 4y agoTaking over the functions is probably only true for the regions in the same part rather than among parts. AFAIK, one region of cortex can compensate for other regions but I doubt that it can compensate for the damage in other part of the brain, e.g. hippocampus or cerebellum. I often wonder about the nature of the control flow in the brain. And if there is any?
- IIAOPSW 4y agoI think the exact opposite but don't have time to go into the detailed evidence so I'm just going to assert the hypothesis tersely: The currency in which brain function is conducted is the brain waves not the neurons. Brain waves are just circular loops of neuron paths activating themselves. There is no particular part of the brain or particular neuron or particular lobe responsible for any one processing task. Granted some processes require shorter loops and can thus end up localized. Eg, all the loops for vision can happen to be in the same cortex (allowing the same frequencies to be reused in a different cortex). But this fact is merely a convenience of implementation. The system would still function just fine if the same loops were embedded in some larger network topology.
- nicoburns 4y agoThere is a case of a woman born without a cerebellum, and the neocortex was able to compensate. Her movement was less smooth than most peoples, but close enough to “normal” that she didn’t discover her cerebellum was missing until well into adulthood when she had a brain scan for an unrelated reason.
- NicoJuicy 4y agoI once read that our brain is an advanced system on top of the lizard brain. The lizard brain has 2 reactions in a lot of cases: - Run - React I think in abnormal/sudden situations, this is still the case.
- ncmncm 4y agoYeah, that's not true.
- NicoJuicy 4y agoBased on? Here's some context: https://en.m.wikipedia.org/wiki/Neomammalian_brain https://en.m.wikipedia.org/wiki/Neomammalian_brain
- ncmncm 4y agoA lot of very confident falsehood is published about brains. The mammal brain is a whole organ. It is not a bunch of smaller organs piled together.
- NicoJuicy 4y agoSource seems to be trustworthy though: https://en.m.wikipedia.org/wiki/Paul_D._MacLean https://en.m.wikipedia.org/wiki/Paul_D._MacLean
- ncmncm 4y agoHis interpretation has fallen out of favor in recent years, in response to results of further research. Check books published since 2010.
- NicoJuicy 4y ago? I'm not going to read an entire book. Say what the new interpretation is and give me a source please, instead of beating around the bush ;)