Feb, 26 Dis - Retina- Light-sensitive inner surface of the...

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Psychology Discussion February 26, 2008 Sensation - Process by which our sensory receptors and nervous system receive and represent stimuli from our environment Perception - Process of organizing and interpreting senor information; enables recognition of meaningful objects and events Proximal and Distal Stimuli Proximal stimuli - Input to the sense organs Distal stimuli - How objects actually are Structure of the Eye Cornea – Transparent outer portion of the eyeball; covers iris and pupil Pupil - Adjustable opening in the center of the eye Iris - Ring of muscle that forms the colored portion of the eye; controls the size of the pupil opening Lens - transparent structure behind pupil; changes shape to focus images on the retina
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Unformatted text preview: Retina- Light-sensitive inner surface of the eye; containing receptor rods and cones; and layers of neurons Optic Nerve- Carries neural impulses from the eye to the brain Blind Spot- Point at which the optic nerve leaves the eye; no receptor cells located there Fovea- Central point in the retina, around which the eyes cones cluster Vision Receptors Rods and Cones Specialized neurons that take sensory information and convert it into neural information Cones Rods Number 8 Million 120 Million Located in Retina Center Periphery Sensitivity in dim light Low High Color Sensitive Yes No...
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Feb, 26 Dis - Retina- Light-sensitive inner surface of the...

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