(Each hemisphere controls movement and feeling on the opposite side of the body.)
The left hemisphere of the brain controls the motor nerves and sensory nerves of the right half of the body.
This is because both hemispheres control both eyes, but each one takes charge of a different half of the field of vision, and therefore a different half of both retinas.
The other hemisphere will control the missile functions such as thrusters, positioning changes, and booster stage separation.
LLA therefore is merely the concentrated use of the left side of the body in patients whose damage is in the right hemisphere (since the right hemisphere controls the left side of the body).
This is imperative in understanding that the left hemisphere of the brain controls the right side of the body, while the right hemisphere of the brain controls the left side of the body.
You see-the right hemisphere of the brain chiefly controls the left side of the body.
When two hemispheres receive competing stimuli at the same time, the response mode tends to determine which hemisphere controls behavior.
The upshot was that the left hemisphere controlled the logical, linear parts of our lives, while the right directed our all-at-once tasks like encountering a picture or a sound.
The left hemisphere usually controls speech.