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10 Cards in this Set

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  • Back
What do cones do in the eyes?
Cones provide color vision, high visual acuity, and ability to see in bright illumination.
What do rods do in the eyes?
Rods provide the sensitivity that allows vision in dim illumination.
Where are rods and cones located in the eyes?
The retina
What are the two types of photoreceptor cells in the retina?
Rods and Cones
Why do objects appear colored?
Objects appear colored because their pigments absorb some wavelengths from white light and reflect others.
How do we experience different colors?
We experience different wavelengths of light as different colors.
What is the Trichromatic Theory of Color Vision?
This theory, derived from the three-primaries law, holds that we have three types of receptors, each most responsive to a particular range of wavelengths.
What is the Opponent-Process Theory of Color Vision?
This theory, derived from the law of complementarity, holds that physiological units involved in color vision are affected in opposite ways (excited or inhibited) by complementary wavelengths.
What are neural circuits?
Neurons that connect together in networks.
Why is there a blindspot in your vision?
Within your eye there is a spot where there are no receptors due to the optic nerve being located there.