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Simplified Functions Of The Brain
These are traditional names for areas of
the brain. They are very useful to learn for
anyone talking about the brain.

The Central Sulcus (sulcus=groove) is the
functional division between the front and
back of the brain.

The Lobes were named after bone plates
of the skull before people knew how the
brain worked.

The Brain stem is a complicated net of
connections of sensory and motor nerves,
and controls many instinctual operations
such as walking, breathing and eye
movement. The Cerebellum at the back
of the brain stem controls muscle
coordination.

(1.) Senses go to the back of the brain,
where ….

(2.) They are analysed for importance. For
example, the back of the brain analyses the
sound of a siren by comparing it with past
memories and learning, to determine what
kind it is, how far away it is, and so on. If the
back of the brain determines that the siren is
important, the information is passed to the
front of the brain for decisions.
(3a.) The central frontal lobe is the "Yes"
area, putting together plans of action.
This is also the creative area to make new
plans. "Let's skip school and run after the fire
engine."

(3b.) The lower frontal lobe above the eyes is the "No" area, which has learned inhibitions. "No,
we should stay in class."

(4.) If the "Yes" impulses are stronger, then the message is sent to the "premotor" area. This is
where we learn how to do things, such as sneak quietly out the door.

(5.) The actual muscle control signals are automatically sent down to the muscles.