What is the ideal sleeping position to maximize brain wash? Is it back, side, slightly inclined? Fluids theory would surely dictate how we can better align our body to encourage this. Intuition says our neck torsion must be instrumental to a good flow.
I assume you would want to rotate.
It would really just take sleeping on your back with head to the left, and head to the right. This approach works for sinus drainage as well.
So many people cannot/do not sleep on their back, though.
Very cool. My daughter has a brain shunt due to complications of spina bifida and so we’re thinking of cerebrospinal fluid on a regular basis. As a layman I guess there’s a particular cerebrospinal fluid pressure you want, and that being too high or too low causes issues? Apparently the shunt just drains into her belly so I also found that interesting. Too high and she’ll have terrible headaches and an “alien” head (…
what exactly do you mean by alien head? not offended, just curious
I can’t post the specific child’s picture as it wasn’t posted publicly and I wouldn’t want to disrespect them, but here’s some examples of less severe hydrocephalus you’ll see often in spina bifida parenting groups [0] [1]. Often people don’t comment on ones like that as everyone wants to get along but if it’s left untreated it can eventually progress to be much more severe and cause debilitating headaches and mental retardation. Interestingly, in googling this apparently low pressure cerebrospinal fluid headaches are also a thing [2], so keeping just the right amount of cerebrospinal fluid draining is a must.
This is curious. During my research into neutral networks we depended on a neuroscience result that found waves of trophic factor (i.e. the stuff used to build up neurons [i.e. learn]) travel in cascading waves from the core of the brain to the periphery. By adding a sense of location and a learning term contingent on the factor we saw learning (xor) prohibited by Minsky's result (not really prohibited because we cha…
What was Minsky's result?
This [0] is probably a reasonable overview though I didn't read it thoroughly, it was on the right track.
Basically that Hopfield networks couldn't learn XOR.
The significance is that it moved us away from biologically plausible networks and precipitated back propagation which was the dominant learning paradigm in neural networks and mostly remains so.
This [0] is probably a reasonable overview though I didn't read it thoroughly, it was on the right track. Basically that Hopfield networks couldn't learn XOR. The significance is that it moved us away from biologically plausible networks and precipitated back propagation which was the dominant learning paradigm in neural networks and mostly remains so. [0] https://alan.do/minskys-and-or-theorem-a-single-perceptron-s.…
The problem with XOR is that you need a line with dimension N, where N is the number of distinct inputs to the XOR, to separate true from false in the truth space.
What I demonstrated was up to 6 dimensional XOR functions being learned in Hopfield networks using Hebbian learning with an additional learning term. I ran a "wave of learning" over the network modifying that terms. In a sense it is a layer free network because no explicit later exists but in another sense the modulation provided a transient layers since the learning term caused different parts of the network to learn at different times out of sync with one another.
A few years ago, before Covid era (BC :), I did a tour of medieval castles in Europe and one observation that stuck in my memory was that the beds used by the royalty were constructed with an inclined position. I’m really curious how prevalent this was and if it was the preferred luxury style of the rich. In parts of Asia hard pillows (reeds/woven) were preferred over down.
Very cool. My daughter has a brain shunt due to complications of spina bifida and so we’re thinking of cerebrospinal fluid on a regular basis. As a layman I guess there’s a particular cerebrospinal fluid pressure you want, and that being too high or too low causes issues? Apparently the shunt just drains into her belly so I also found that interesting. Too high and she’ll have terrible headaches and an “alien” head (…
Too little CSF leads to the brain crushing itself under gravity. The brain is almost entirely lipids which contributes to its buoyancy in CSF. Take away too much CSF, nothing for it to float in. Too much CSF? The skull is a fixed volume (in adults) so the CSF compresses the brain tissue. In kids, the sutures or junctions between bones of the skull are still flexible. This allows for childbirth and normal rapid brain growth. It’s easy to tell if there too much fluid around the brain in a newborn because their front soft spot (Fontanelle) will bulge or become firm. A bulging fontanelle also occurs with other pathologies like meningitis.
A few years ago, before Covid era (BC :), I did a tour of medieval castles in Europe and one observation that stuck in my memory was that the beds used by the royalty were constructed with an inclined position. I’m really curious how prevalent this was and if it was the preferred luxury style of the rich. In parts of Asia hard pillows (reeds/woven) were preferred over down.
In some cultures, it was traditional to use the skull of your enemy as a pillow.