3 Answers

  1. A single neuron is neither a pixel nor a single thought (an image is also a thought). “Pixel”, by the way, is also a thought.

    I'll explain it very roughly, but they haven't explained it more precisely yet.

    People have all sorts of different receptors. They send signals to the brain.�

    These signals generate connections between neurons. *

    If these connections are aroused again, the same sensations will be triggered.

    The brain can make connections by repeating sensations, and it can combine sensations.

    In principle, repetitions of sensations do not differ from the sensations themselves. You can feel this by remembering how real dreams seem to us. In order not to confuse reality and repeat реальности reality (with or without modification)the brain controls this specifically – we just “know” that we are not sleeping right now.

    In addition, we can “declare” some sensations as symbols (they are also stored as sensations). This is the sensation of sensations. I see a circle and feel the connection between this circle and the circles on the water, the Sun, the hole. Operating not with sensations, but with symbols is already thoughts, speech.�

    This is the latter – the second signaling system is peculiar only to humans. Only higher animals partially possess it in the volume of a 2-3-year-old baby.

    In the picture, you can see that thoughts are some groups of excited connections of neurons:



    Another real picture on the example of a fish. A very beautiful experiment. The original is here:


    And I took the picture here:�ibigdan.livejournal.com

    Scientists were able to capture the activity of individual neurons in the vertebrate brain. After all, the embryo of a fish is transparent as glass.
    In short, in a genetically modified fish, brain neurons produce a fluorescent protein when the calcium concentration changes at the time of neuronal activity. The brain is illuminated by a flat beam of light, causing fluorescence. All this is captured on a high-resolution camera, so that you can distinguish individual neurons.

    • The neuron receives several signals, they are different in strength depending on the” weight ” of the connections that the signals came from. The neuron sums up the signals, and if the signal exceeds a certain threshold, it transmits the signal further. This creates unique areas of arousal. In addition to the excitation processes, braking processes also work.
  2. As we were told at the time, a neuron generates an impulse. In these variations presented in the question, it is not possible to explain its work with such a system of indicators.

  3. There are 80 to 200 billion neurons in the human brain, almost all of which form a colossal connection, but it depends on the area of the brain for which certain neurons will be responsible. There are plenty of examples where people have had their heads pierced(and millions of neurons have suffered), but in general, the brain has not been affected. But there are millions, and here is one neuron. So nothing will happen

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