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Definition
| detection of physical energy by sense organs which then send information to the brain |
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| the brain's interpretation of raw sensory inputs |
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| the process of converting an external energy or substance into nerual activity |
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| specialized cell responsible for converting external stimuli into nerual activity for a specific sensory system |
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| lowest level of a stimulus needed for the nervous system to detect a change 50% of the time. |
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Term
| Just Noticeable difference |
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Definition
| the smallest change in the intensity of a stimulus that we can detect |
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Definition
| the procession of sensory information that occurs below the level of conscious awareness |
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| we can't engage in much, if any, in depth processing of the meaning of subliminal stimuli. as a result these stimuli probably can't produce large scale or enduring changes in our attitudes, let alone our every day decisions. |
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Definition
| the relation between a stimulus and its context |
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| the process by which we perceive stimuli consistently across varied conditions |
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| process of selecting one sensory channel and ignoring or minimizing others |
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Definition
| intensity of reflected light that reaches our eyes |
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Definition
| the chemicals responsible for eye colour |
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Definition
| transmits impulses from the retina to the rest of the brain |
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Definition
| innermost layer of the eye, where incoming light is converted into nerve impulses |
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Definition
| transparent disk that focuses light rays for near or distant vision |
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Definition
| curved, transparent dome that bends incoming light |
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Definition
| coloured area containing muscles that control the pupil |
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Definition
| opening in the centre of the iris that lets in light |
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Definition
| changing the shape of the lens to focus on objects near and far |
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Definition
| membrane at the back of the eye responsible for converting light into neural activity |
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Definition
| central portion of the retina |
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Definition
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| receptor cells in the retina allowing us to see in low levels of light |
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Definition
| receptor cells in the retina allowing us to see in colour |
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Definition
| receptor cells in the retina allowing us to see in colour |
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Definition
| part of the visual field we can't see because of an absence of rods and cones |
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Definition
1) proximity
2) similarity
3) good continuation
4) closure
5) symmetry
6) figure-ground |
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Definition
| the idea that we base our colour vision on three primary colours - blue, green and red. |
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Definition
| inablility to see some OR all colours |
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Definition
| ability to judge distance and three demensional relations |
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| stimuli that enables us to judge depth using only one eye |
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Definition
| stimuli that enable us to judge depth using both eyes |
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Definition
| failure to perceive an event when our attention is directed elsewhere |
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Definition
| a serious disorder in which patients can;t seamlessly string still images processed by their brains into the perception of ongoing motion |
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Definition
| a defecit in perceiving objects. a person with his agnosia can tell us the shape and colour of an object but can't recognize it. |
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Definition
| the remarkable phenomenon in which people with cortical blindness resulting from damage in V1 can make correct guesses about things in their environment even though they cant see them |
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Definition
| the frequency of the waves of soung that we hear |
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Definition
| measured in decibels, the amplitude or height of the sound wave corresponds to this. |
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Definition
| complexity or quality of sound that makes musical instruments, human voices or other sources sound unique |
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| bony, spiral shaped sense organ used for hearing |
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| tissue containing the hair cells necessary for hearing |
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Definition
| membrane supporting the organ of Corti and hair cells in the cochlea |
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Definition
| conducts sound waves to the eardrum |
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Definition
| flexible outer flap of the ear, which channels sound waves into the ear canal |
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| fluid filled cavity that detects head position |
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| connects the middle ear to the back of the nose and controls air pressure in the ear |
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| transmits nerve impulses from the inner ear to the brain |
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Definition
| carries information concerning balance to the brain |
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| our sense of touch, temperature and pain |
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| our sense of touch, temperature and pain |
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Definition
| our sense of body perception |
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| our sense of equilibrium sense |
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Definition
| odouless chemicals that serve as social signals to members of one's species |
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| pain or discomfort felt in an amputated limb |
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Definition
| three fluid filled canals in the inner ear responsible for our sense of balance |
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