III. LEARNING
A. Nervous system and human brain
Learning is an elementary process. It starts in the
womb and continues during our whole life. Senses provide
us with information about our environment and nervous
system transfers the electric impulses to our brain with
speed up to 100 meters per second [4], where information
is processed. Information processing is a base for human
cognition, creating logical abstracts, reasoning,
information classification and categorization.
Average human brain consists of 86 billion neurons
and uses typically 100 W of power, which represents
merely 20 % of the whole body energy consumption [5].
On the other hand, gorilla's brain has about 28 billion
neurons, or around 33 % capacity of human brain [6].
Each neuron is capable of making around 1000
connections, representing roughly 1000 potential
synapses, which mostly do the work of data storage. If we
multiply each of these 100 billion neurons by
approximately 1000 connections each neuron can make,
we get 100 trillion data points, or about 100 terabytes of
information