Terms : Hide Images
| 8233431995 | Wavelength | The distance from the peak of one light or sound wave to the peak of the next. Electromagnetic wavelengths vary from the short blips of cosmic rays to the long pulses of radio transmission. | 0 | |
| 8233431996 | Hue | The dimension of color that is determined by the wavelength of light; what we know as the color names blue, green, and so forth. | 1 | |
| 8233431997 | Intensity | The amount of energy in a light wave or sound wave, which influences what we perceive as brightness or loudness. Intensity is determined by the wave's amplitude (height). | 2 | |
| 8233431998 | Pupil | The adjustable opening in the center of the eye through which light enters. |  | 3 |
| 8233431999 | Iris | A ring of muscle tissue that forms the colored portion of the eye around the pupil and controls the size of the pupil opening. When you feel disgust or you are about to answer "No" to a question, your pupils constrict. | | 4 |
| 8233432000 | Lens | The transparent structure behind the pupil that changes shape to help focus images on the retina.. |  | 5 |
| 8233432001 | Retina | The light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information. |  | 6 |
| 8233432002 | Accommodation | In sensation and perception, the process by which the eye's lens changes shape to focus near or far objects on the retina. | 7 | |
| 8233432003 | Rods | Retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don't respond. Doesn't pick up vivid color detail. |  | 8 |
| 8233432004 | Cones | Retinal receptor cells that are concentrated near the center of the retina and that function in daylight or in well-lit conditions. The cones detect fine detail and give rise to color sensations. | | 9 |
| 8233432005 | Optic Nerve | The nerve that carries neural impulses from the eye to the brain. |  | 10 |
| 8233432006 | Blind Spot | The point at which the optic nerve leaves the eye, creating a "blind" spot because no receptor cells are located there. | 11 | |
| 8233432007 | Fovea | The central focal point in the retina, around which the eye's cones cluster. |  | 12 |
| 8233432008 | Where do the percived photons of light go through the brain to be processed? | After processing by your RETINA's nearly 130 million receptor rods and cones, information travels forward again, to your bipolar cells. From there, it moves to your eye's million or so GANGLION cells, and through their axons making up the optic nerve to your brain. After a momentary stop-off in the THALAMUS, the information travels to your VISUAL CORTEX in your OCCUPTIONAL LOBE. | 13 | |
| 8233432009 | Young-Helmholtz trichromatic (three-color) theory | The theory that the retina contains three different color receptors—one most sensitive to red, one to green, one to blue—which, when stimulated in combination, can produce the perception of any color. | 14 | |
| 8233432010 | Opponent-process theory | The theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision. For example, some cells are stimulated by green and inhibited by red; others are stimulated by red and inhibited by green. | 15 | |
| 8233432011 | Feature detectors | People: Hubel and Wiesel received a Nobel Prize Nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, or movement. | 16 | |
| 8233432012 | Parallel processing | The processing of many aspects of a problem simultaneously; the brain's natural mode of information processing for many functions. Brain delegates the work of processing motion, form, depth, and color to different areas. | 17 | |
| 8233432013 | Gestalt | An organized whole. Psychologists emphasized our tendency to integrate pieces of information into meaningful wholes. Imagine the panda bear and triangle out of circles. | 18 | |
| 8233432014 | Figure-ground | The organization of the visual field into objects (the figures) that stand out from their surroundings (the ground). | 19 | |
| 8233432015 | Grouping | The perceptual tendency to organize stimuli into coherent groups. Proximity Continuity Closure | 20 | |
| 8233432016 | Depth perception | The ability to see objects in three dimensions although the images that strike the retina are two-dimensional; allows us to judge distance. | 21 | |
| 8233432017 | Visual cliff | A laboratory device for testing depth perception in infants and young animals. | 22 | |
| 8233432018 | Binocular cues | Depth cues, such as retinal disparity, that depend on the use of two eyes. | 23 | |
| 8233432019 | Retinal disparity | A binocular cue for perceiving depth: By comparing images from the retinas in the two eyes, the brain computes distance—the greater the disparity (difference) between the two images, the closer the object. | 24 | |
| 8233432020 | Monocular cues | Depth cues, such as interposition and linear perspective, available to either eye alone. | 25 | |
| 8233432021 | Phi phenomenon | An illusion of movement created when two or more adjacent lights blink on and off in quick succession. | 26 | |
| 8233432022 | Perceptual constancy | Perceiving objects as unchanging (having consistent color, brightness, shape, and size) even as illumination and retinal images change. Recognize objects without being deceived by changes in their color, brightness, shape, or size—a top-down | 27 | |
| 8233432023 | Color constancy | Perceiving familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the objects. | 28 | |
| 8233432024 | relative luminance | Like the photometric definition, it is related to the luminous flux density in a particular direction, which is radiant flux density weighted by the luminosity function y(λ) of the CIE Standard Observer. The use of relative values is useful in systems where absolute reproduction is impractical. | 29 |
