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30 Cards in this Set
- Front
- Back
According to the trichromatic theory of color vision, the most important factor in determining the color we see is the ?
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Relative activity of short, medium and long wavelengths. |
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Which theory of color vision is best able to explain negative color afterimages?
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Opponent-Process Theory |
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The law of specific nerve energies states that ?
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Every stimulation of the optic nerve is perceived as light. |
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According to the Young-Helmholtz theory, what is the basis for color vision? |
Three kinds of cones. |
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Color constancy is the ability to ? |
Recognize the color of an object despite changes in lighting. |
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The fact that all colors on older televisions were created by combining only three different colors of light supports what theory of color vision?
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Trichromatic |
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In comparison to cones, rods ? |
Are more sensitive to dim light. |
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Light from the right half of the world strikes what part of the retina? |
The left half. |
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The most common form of color deficiency is due to what?
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Long- and medium- wavelength cones making the same photo pigment. |
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Chemicals that release energy when struck by light-
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Cells in the inferior temporal cortex that are sensitive to a particular shape are also likely to respond to the shape's ?
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Mirror-reversal |
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The ______ of any neuron in the visual system is the area of the visual field that excites or inhibits it.
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Receptive field |
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Astigmatism refers to ?
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Asymmetrical curvature of eyes. |
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What type of cell responds to a pattern of light in a particular orientation anywhere within its large receptive field, regardless of the exact location of the stimulus? |
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Axons from the lateral geniculate extend to which area of the cerebral cortex?
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Occipital lobe. |
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The primary visual cortex sends its information ?
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To area V2. |
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In the visual system, the BLANK and BLANK constantly feed information back and forth?
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Thalamus; cortex. |
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Blindsight refers to ?
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The ability to localize visual objects within an apparently blind visual field. |
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Suppose someone has a genetic defect that prevents the formation of horizontal cells in the retina. Which visual phenomenon is most likely to be impaired?
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Lateral inhibition.
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In the vertebrate retina, which cells are responsible for lateral inhibition?
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Horizontal cells. |
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Human newborns come into the world predisposed to pay more attention to BLANK than any other stationary displays?
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Faces |
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The visual path in the parietal cortex is referred to as the ?
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Dorsal stream |
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A person with visual agnosia is unable to?
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Recognize visual objects. |
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When cells in the middle temporal cortex respond to visual stimuli, their response depends mostly on ?
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Speed and direction of movement. |
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In addition to having difficulty recognizing faces, people with prosopagnosia may have difficulty ?
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Recognizing different kinds of plants and animals. |
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According to the frequency theory, the ?
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Basilar membrane vibrates in synchrony with a sound, producing action potentials at the same frequency. |
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Timing differences can be used most accurately for localizing ? |
Sudden onset sounds. |
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What is the perception of the intensity of a sounds wave called? |
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Damage to the primary auditory cortex results in?
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Difficulty responding to sequences of sounds. |
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Patients with damage in area MT have problems with perception of what?
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Movement of objects and sounds. |