Saturday, June 15, 2019

An article on vision

Life’s a blur — but we don’t see it that way

Read the article, the optics folks are a bit behind, I think.

We do not have a pixel map, we have the pattern of eye movements detected. We remember the beach because the eye darts through the familiar beach patter, we actually match muscle movements.  Eye motion is not suppressable, arm motion is.  So eye muscles are free to simulate and pattern match in run time, there is no suppression of muscle motion.

In other words, we can imagine throwing a rock. We can make our head move a bit to find the imaginary spot where the rock would land. We can do this abstract thought because we can suppress the trowing motion. Eyes do not need this suppressive step, no one is bother if eyes move around in their sockets, so we use eye muscles directly, not in the abstract.  The eye is pre-conscious, in its original state before muscle suppression evolved. The eye thinks out loud, its motion are an 'algebrta' machine and we do not know it.

From wiki:

Ocular dominance, sometimes called eye preference or eyedness,[1] is the tendency to prefer visual input from one eye to the other.[2] It is somewhat analogous to the laterality of right- or left-handedness; however, the side of the dominant eye and the dominant hand do not always match.[3] 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 (See Optic Tract for more details). There is thus no direct analogy between "handedness" and "eyedness" as lateral phenomena.
See the difference? Handedness is a result of repeated drills while the left hand is only for balance,l and the brain is focused on the right.  We try not to do that with our eyes.   Handedness leads to abstract thought once we suppress the motion.  The eye motions never get to the point of being abstract.

Eyes and ears are the two exceptions to the rule about handedness and abstract thinking and consciousness. They are close to the brain, no long compressed nerve channel.  They are thus unobserveable, in a repeated exercise. The brain never gets a change to experiment with one eye watching the other. Note also voice is generally not handedness either. We need handedness to evolve to abstract thought.

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