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Definition
| receiving, converting, and transmitting raw sensory information from external and internal sources to the brain |
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Definition
| selecting, organzing, and interpreting sensory info |
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| A mixing of sensory experiences (tasting purple) |
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Definition
| converting a stimulus to a receptor into neural impulses |
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Definition
| filtering and analyzing incoming sensations before sending a neural message to the cortex |
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Definition
| process that converts a particular sensory input into a specific sensation |
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| study of the relation between attributes of the physical world and our psychological experience of them |
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Definition
| minimal difference needed to notice a stimulus change; also called the "just noticable difference: (JND) |
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Definition
| Rpeated or constant stimulation decreases the number of sensory messages sent to the brain, which causes decreased sensation |
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Term
| Gate-Control Theory of Pain |
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Definition
| Theory that pain sensations are processed and altered by mechanisms within the spinal cord |
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Definition
| distance between peaks of light or sound waves, the shorter the wavelength, the higher frequency |
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Definition
| How often a light or sound wave cycles (# of wavelengths in a given time) |
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Definition
| height of light or sound wave - brightness and loudness |
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Definition
| auto adjustment of the eye, muscles change shape of lens to focus on different distances |
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Definition
| image is focused in front of the retina |
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Term
| Farsightedness (hyperopia) |
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Definition
| image is focused behind the retina |
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Term
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Definition
| light-sensitive inner surface of the back of the eye, contains receptor cells for vision (rods and cones) |
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Definition
| receptor cells in the retina that detect shades of gray and are responsible for peripheral vision and are most sensitive in dim light |
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Definition
| receptor cells, concentrated near the center of the retina, reponsible for color vision and fine detail; most sensitive in brightly lit conditions |
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Definition
| A tiny pit in the center of the retina filled with cones and responsible for sharp vision |
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| 3 chambered, snail-shaped structure in the inner ear containing the receptors for hearing |
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Definition
| Explains how we hear higher-pitched sounds; different high-pitched sounds bend the basilar membrane hair cells at different locations in the cochlea |
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Definition
| Explains how we hear lower-pitched sounds; hair cells in the basilar membrane bend and fire neural messages (action potential) at the same rate as the sound frequency |
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Term
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Definition
| Middle-ear deafness resulting from problems with transferring sound waves to the inner ear |
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Term
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Definition
| Inner-ear deafness resulting from damage to the cochlea, hair cells, or auditory nerve |
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