Principles of visual perception by Carolyn M. Bloomer

Author:Carolyn M. Bloomer
Language: eng
Format: epub, pdf
Tags: Visual perception, Composition (Art), Art -- Psychology, Visual perception, Optical illusions, Art appreciation
Publisher: Van Nostrand Reinhold Co.
Published: 1976-10-25T16:00:00+00:00

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The Moving Picture

Is a lizard alive? Yes.

A nail? No.

A flower? No.

A tree? No.

Is the sun alive? Yes. Why? Because it moves when it has to.

Are the clouds alive? Yes, because they move and then they hit. What do they hit? They make the thunder when it rains.

Is the moon alive? Yes, because it moves.

The fire? Yes, because it crackles.

Is the wind alive? Yes, because on a windy day it’s cold, it’s always going faster.

A mountain? No, because it’s always in the same place.

A motor? Yes, because it moves.

You know what it is to be alive? Yes, to move.^

For the child motion is magical, life-giving. His world is a field of movement, activity, spontaneous forces—life. Newborn infants—even before they can focus—follow moving objects with their eyes. And they are calmed by motion when they are rocked or carried. From birth humans respond to movement.

You arrive in the world with a physiology programmed for motion. The very functions and structures of your body require motion to maintain life. Without exerciseyour health declines; your metabolism becomes sluggish. Muscles atrophy from disuse. Just sitting too long in one position

causes cramped muscles, stiff joints. Motion activates your nerve cells, gives you knowledge of yourself, tells you that you exist. Humans dread paralysis, the loss of motion, as a kind of death.

Freedom, our most cherished value, is defined in terms of motion:

. . . able to move in any direction, not held, as in chains, etc., not kept from motion, loose, not held or confined, unhindered, unhampered, not restricted by anything except its own limitations or nature..

Those who would control us—whether for good or for ill—begin by controlling our movement:

Stay real close to Mommy, now.

Sit in your seat. Raise your hand if you need to leave the room. And sit still!

Atten-hut! Forward march! Left, right, left, right... No running. No fishing. No hunting. No skating. No swimming. Do not walk on the grass.

Stop!

The language of motion expresses a variety of activities and experiences: consider such terms as emotion, 6emotion, promotion, commotion, loco-motion.

PHYSIOLOGY

The perception of motion can be most simply define.d as the perception of a succession of changes. The ability to detect motion is clearly an

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