7 What is Communication?
Understanding how we understand
Understanding is essentially a pattern-matching process. We
create meaning by matching external stimuli from our
environment to mental patterns inside our brains.
The human brain is the most complex system we know of. It
contains 100 billion neurons (think
of a neuron as a kind of
switch). The power of the brain lies in its networking capacity.
The brain groups neurons into networks that ‘switch on’ during
certain mental activities. These networks are infinitely flexible:
we can alter existing networks, and grow new ones.
The number
of possible neural networks in one brain easily exceeds the
number of particles in the known universe.
The brain is a mighty networker;
but it is also an amazing
processor. My computer is a serial processor: it can only do one
thing at a time. We can describe the brain as a parallel processor.
It can work on many things at once. If one neural circuit finishes
before another, it sends the information
to other networks so
that they can start to use it.
Parallel processing allows the brain to develop a very
dynamic relationship with reality. Think of it as ‘bottom-up’
processing and ‘top-down’ processing.
Dostları ilə paylaş: