For example, when put on the spot and being asked questions (intense ones too, or some q’s we dont know) How does the brain reteive and give us information so quick to reply, our brain has so much informations which is all tangled and in our minds, how do we remember especially when we are in a unexpected situation?
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Good question. There is no straight answer, unfortunately.
It’s worth remembering that the brain is all about connections. Unlike in a computer – where information is stored as a series of 1’s and 0’s, so to find a particular piece of information all of a sudden, you have to spend a relatively long time sorting through irrelevant information to find the right piece – there isn’t really a single “unit” of memory in the brain, it’s all groups of connections that are linked together in different ways.
It may seem like a tangled mess, but really, context is what’s important. Think about it this way – in order to bring a memory to the front of your mind, you need to pull on one or more “strings” of connections. The more strings you pull on at once, the faster and more robustly the memory comes. When you’re put on the spot, the “central executive” part of your mind is put into a state where you can pull on lots of the right strings at once. While it’s a complicated mess of strings, and many of the strings will bring the wrong memory, if you get the right combination, the one that comes strongest and fastest is the one you are looking for. Conversely, if you can’t find enough strings to pull on, the information kind of feels like it’s “right on the tip of your tongue”, because the strongest memories for that (less than optimal) combination of strings are the wrong memories.
Bear in mind, that’s a very rough analogy, but it should at least give you an idea of how memory works!
PS. The commenter above is not only unhelpful, but wrong. While electricity flows very fast in wires (roughly the speed of light), nerves don’t use that kind of conduction; it relies on electrical changes in the cell membrane called action potentials, which while they are pretty fast, actually spread many orders of magnitude slower than electricity in a wire.
Source(s):
BSc Neuroscience, PhD Life Sciences
It has its own speed that is unnatural for us to think of, like the speed of sound or the speed or light. Whatever the stimulus of what the brain is to react to, impulses are sent and the brain reacts. Certain things will just have a unique pattern or in this case speed.