Ask anyone what makes us human, and you will probably receive the answer that it is our brains – our oversized, convoluted, magnificent brains with their 100 billion neurons and 100 trillion connections – that have gifted us our unique position in the animal world. The human brain is considered by many to be the pinnacle of evolutionary design, being a highly efficient, immensely flexible and mind-bogglingly quick computing machine. Unravelling the workings of this machine is a daunting challenge that many bright minds have nevertheless accepted over the years, and we now have a basic, if incomplete, understanding of the basic principles along which the brain functions.
What exactly is the brain?
The brain is, anatomically speaking, a mass of concentrated nervous tissue.