Intro to Sensation and Perception: Vision
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| show | process in which we detect physical energy from the environment and then encode it as neural signals (sensory receptors and nervous system receive and represent stimulus energies from our environment)
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| Perception | show 🗑
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| Bottom-up processing | show 🗑
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| Top-down processing | show 🗑
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| Psychophysics | show 🗑
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| Absolute threshold | show 🗑
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| show | below the absolute threshold for conscious awareness
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| Prime | show 🗑
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| Difference Threshold | show 🗑
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| Webers Law | show 🗑
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| show | diminished sensitivity as a consequence of constant stimulation
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| Wavelength | show 🗑
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| show | dimensions of color determined by wave length
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| Intensity | show 🗑
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| Retina | show 🗑
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| show | the process of eyes lenses changes shape o focus near or far objects in the retina
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| show | retinal receptors that detect black, white and gray; necessary for peripheral and twilight vision
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| Cones | show 🗑
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| show | nerve that carries neural impulses from eye to brain
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| show | the pint that optic nerve leaves the eye, creating blind spot with no receptors
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| Fovea | show 🗑
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| Feature Detectors | show 🗑
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| show | processing many aspects of a problem simultaneously, the brains neural mode of information processing for many functions, including vision
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| Young-Helmhotz trichromatic theory | show 🗑
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| show | theory that opposing retinal processes (red-green, yellow-blue, black-white) enable color vision.
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