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Human Performance
2.4 Human physiology (Menneskelig ydeevne 2 - 3 videoer)
To gain a basic understanding of human performance, we need to know a little
about how humans are structured.
It's a bit more complicated than just having two arms, two legs, a body, and a
head. Let's take a closer look.
For us to move our arms and legs, we need a motor system or a movement
system. The brain monitors whether movements occur in the right direction
and with the correct coordination in terms of timing and position.
Some functions, such as cycling, are so automated through training that we can
perform them without much mental effort. Other tasks, such as landing a plane,
require so many corrections and evaluations that we must devote all our
mental capacity to performing the task.
All of this is controlled by the brain and nervous system. The brain is the central
system.
The spinal cord connects the central nervous system to the peripheral nervous
system, including sensory and motor nerves.
Following this section is one about the senses which provide the brain with
information, giving us a sensory perception of the situation.
Combined with this, the brain can create a cognitive picture of the situation -
possibly disturbed by sensory illusions.
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