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SENSATION--PART 2

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Optic Nerve

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Terms in this set (24)

The nerve that carries visual information from the eye to the occipital lobes of the brain

The point at which the optic nerve travels through the retina to exit the eye; the lack of rods and cones at this point, creates a small blind spot

Trichromatic (three-color) Theory

A theory of color vision that says cones are sensitive to red, green and blue light - the three colors that combine to create millions of color combinations

Subtractive Color Mixing

When mixing colored paints, each new color SUBTRACTS (soaks up) another wavelength

Additive Color Mixing

When mixing colored lights, each new color ADDS another wavelength

Color Deficient Vision

People who lack one of the three types of cones

Opponent-Process Theory of Color

A theory of color vision that says color is processed by cones organized in opponent pairs
(red-green, yellow-blue, black-white); light that stimulated one half of the pair inhibits the other half

A sound's highness or lowness, which depends on the frequency of the sound wave

A measure of the number of sound wave peaks per second; measures "frequency"

A measure of the height of the sound wave; determines the loudness of the sound

The opening through which sound waves travel as they move into the ear for processing

Tympanic Membrane (eardrum)

The tissue barrier that transfers sound vibration from the air to the tine bones of the middle ear

Three tiny bones that transfer sound waves from the eardrum to the cochlea

The major organ of hearing; a snail shaped bony body tube fluid-filled in the inner ear where sound waves are changed to neural impulses

The point on the surface of the cochlea which receives the sound vibration from the ossicles