Question: how does the brain works? thank you :)

Daniel Richardson answered on 17 Jun 2010:

Well, that’s the biggest, simplest and best question that me and thousands of scientists like me are trying to answer. The brain is the most complicated object that we have found in the universe, so it’s going to take some time. This is why psychology is much harder than the easy sciences like physics….

A short answer is that the brain is a big lump of many tiny cells called neurons. The human brain has about 100 billion. These neurons have many connections to each other – there are about 100 trillion links between them. And they are connected to every part of your body, your muscles, you eyes and ears and so on. These connections have a very special property. If two neurons are active at the same time and they are connected to each other, then that connection becomes strengthened. So say in a baby’s brain there is a neuron (more likely a whole group of them) that are hooked up to her eyes and become activated when she sees a cat, and others that are hooked up to her ears and become activated when she hears the word ‘kitty’. After seeing a cat and hearing her parents say ‘kitty’ enough times, the connections between those neurons becomes strengthened. This means that eventually, when the baby see’s a cat and her parents aren’t there, the visual neurons in her brain will activate the sound neurons in her brain, and she will say to herself “kitty”. And that baby has just learn a word.
That is about 1% of the story of how the brain works, but it’s a start….