Dr Bob Pullen shines a spotlight on the human brain, which is so central to what we humans are. He explains how our brains are made up of nerve cells or neurons, which behave rather like batteries producing a small voltage which becomes the language of the nervous system, a bit like Morse code. Our neurons can also behave like computer-chips processing electronic data. He looks at the brains of other animals and explains how different parts of the human brain perform different tasks, some areas performing movement, others giving us our five senses. He describes the fascinating ways our brains can create visual illusions, how we produce language and speech, how we feel pain and what happens when we sleep and dream. The book also touches on the nature of consciousness itself.
The book looks at the physical division of the brain into left and right cerebral hemispheres and describes how these differ between men and women.
And what happens when the brain goes wrong; how can it be examined? A damaged brain can cause difficulties, illness and disorder. Remarkable modern methods of examination such as measuring brain waves and magnetic resonance imaging are simply and clearly explained.
The brain is more than a normal organ. It governs how we think and makes us self-aware. Bob Pullen considers the mind, life and death, as well as our place in the universe.