THE PHYSICAL BRAIN :
The brain – the most complex entity in the known universe – controls our thoughts, moods, behavior and memories. It is clearly a physical entity, but neuroscientists are still a long way from being able to explain how something purely physical can give rise to conscious experience.
In simplified terms, the brain can be split into 3 main parts :
– THE CEREBRUM
– THE BRAIN STEM
– THE CEREBELLUM
The brain contains about 10 BILLION NEURONS (brain cells) and about 50 TRILLION SYNAPSES (connections between neurons).
The brain is also split into 2 halves (LEFT and RIGHT HEMISPHERES) which are connected by the CORPUS CALLOSUM (a collection of nerve fibres).
The two hemispheres can be further sub-divided into 4 lobes :
– THE FRONTAL LOBES (concerned with reasoning,