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22 Cards in this Set
- Front
- Back
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The height of a sound wave, which produces loudness
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amplitude
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Short, fat photoreceptors that taper to a pointed tip; they are responsible for color perception.
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cones
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The clear, curved, outer membrane covering of the eye.
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cornea
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The sense responsible for our senses of balance, acceleration, & deceleration, as well as the direction of gravity.
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equilibratory sense
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The center point in the retina, where images are focused.
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fovea
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The number of times that a sound wave repeats itself in a given period of time.
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frequency
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Theory suggesting that the firing rate of nerve cells matches the frequency of a sound wave, which triggers impulses to the brain at the same frequency as the sound wave.
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frequency theory
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Theory proposing that the spinal cord contains a neurological gate that either blocks pain or allows pain signals to pass on to the brain to be perceived.
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gate control theory
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Theory contending that there are 2 additional color processes beyond red, blue, & green perception: one responsible for red versus green perception, & one responsible for yellow vs. blue perception.
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Hering's opponent process theory
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The ring-shaped muscle in the middle of the front of the eye that opens and closes, allowing light to pass through the pupil.
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iris
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The sense of position & movement of body parts in relation to each other.
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kinesthesia
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A clear structure located behind the pupil, which help focus images by changing shape depending on how far away a viewed object is.
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lens
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Phenomenon that occurs when one stares at a color image & then sees the same image in the "opposite" colors after shifting one's eyes.
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negative afterimage
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Chemicals produced by an organism as a method of communication through odor to attract other organisms.
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pheromones
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Theory proposing that we hear different pitches because sound waves trigger different places along the cochlear basilar membrane inside the ear.
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place theory
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The small, round hole in the middle of the iris
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pupil
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Sound that is dominated by single-frequency waves.
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pure sound
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The interior lining of the rear of the eye, which contains the photoreceptors.
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retina
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Slender, elongated, cylinder-shaped photoreceptors that are sensitive to changes in light waves; they are responsible for peripheral vision & night vision.
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rods
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The means by which one sense influences or interacts with another.
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sensory interaction
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The sharpness of a sound.
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timbre
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Theory suggesting that the retina has 3 types of color receptors: red, green, and blue.
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Young-Helmholtz Theory
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