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Just because you see something you have never seen before does not mean it did not exist before you saw it.
Excitingly, the discovery hints that our brains might be even more powerful units of computation than we realized.
...
There was a 'eureka' moment when we saw the dendritic action potentials for the first time," said Larkum.
.... when they dosed the cells with a sodium channel blocker called tetrodotoxin, they still found a signal. Only by blocking calcium did all fall quiet.
Finding an action-potential mediated by calcium is interesting enough. But modelling the way this sensitive new kind of signal worked in the cortex revealed a surprise.
In addition to the logical AND and OR-type functions, these individual neurons could act as 'exclusive' OR (XOR) intersections, which only permit a signal when another signal is graded in a particular fashion.
originally posted by: wlee48868
Just came across this article the other day,. And got me thinking.. did our maker want to give us a upgrade,. And did the elite had other plans.. is the vaccine all about suppressing evolution.. all the timing seems coincidental specially with all the astronomical events that have taken place,. Was The conjunction of Jupiter and Saturn a sign,. Then there was all the monoliths appearing.. so much is happening it can't be all a coincidence.. www.sciencealert.com...
It has long been assumed that the summation of excitatory synaptic inputs at the dendrite and the output at the axon can only instantiate logical operations such as AND and OR (30). Traditionally, the XOR operation has been thought to require a network solution (31, 32). We found that the dCaAPs’ activation function allowed them to effectively compute the XOR operation in the dendrite by suppressing the amplitude of the dCaAP when the input is above the optimal strength (Fig. 2).
In otherwords, it, existing in pre historic Humans means that they would have the same intelligence factor as us? Just no one was around to teach anything in those early days.
originally posted by: mbkennel
originally posted by: wlee48868
Just came across this article the other day,. And got me thinking.. did our maker want to give us a upgrade,. And did the elite had other plans.. is the vaccine all about suppressing evolution.. all the timing seems coincidental specially with all the astronomical events that have taken place,. Was The conjunction of Jupiter and Saturn a sign,. Then there was all the monoliths appearing.. so much is happening it can't be all a coincidence.. www.sciencealert.com...
The original science is very intriguing. And it has absolutely 0 to do with all that nonsense.
In a nutshell, certain human neurons in cortical layer 2/3 whose major expansion is unique to humans, display more complex and powerful computational behavior than previous models of neurons.
Artificial Neural Network research, from the abstracted computational/engineering sort used by Google and many others in machine learning techniques to the more neuro-science oriented physiologically based neuronal network models made certain classical assumptions about how the effects of dendrites combine and sum together.
Classical neural networks were inspired by a mathematical function based model which was suggested ages ago from animal experiments: activation potential of hidden node h_i = f(sum_i x_i*w_ij + b_i) with f some nonlinear monotonic function.
This new research results shows that in humans, and apparently humans exclusively, there are neuronal structures with different and more powerful intrinsic computational ability. The assumption is that this has been in humans since the evolutionary shift from proto-humans.
It has long been assumed that the summation of excitatory synaptic inputs at the dendrite and the output at the axon can only instantiate logical operations such as AND and OR (30). Traditionally, the XOR operation has been thought to require a network solution (31, 32). We found that the dCaAPs’ activation function allowed them to effectively compute the XOR operation in the dendrite by suppressing the amplitude of the dCaAP when the input is above the optimal strength (Fig. 2).
XOR in a single layer vs multi-layer computation.
It would be very exciting to me if this idea could be successfully brought over to the ANN engineering community and permit a more sophisticated set of computations.
originally posted by: Arnie123
In otherwords, it, existing in pre historic Humans means that they would have the same intelligence factor as us? Just no one was around to teach anything in those early days.