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| activation of the sense organs by a source of physical energy |
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| sorting out, interpretation, analysis, and integration of stimuli carried out by the sense organs and brain |
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| energy that produces a response in a sense organ |
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| smallest intensity of a stimulus that must be present for it to be detected |
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| smallest level of added or reduced stimulation required to sense that a change in stimulation has occurred (weber's law) |
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| 1-ounce increase in a 50-ounce weight |
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| the noticeable difference for weight is ... |
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| the process through which sensory receptors convert the sensory stimulation into neutral impulses |
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| an adjustment in sensory capacity after prolonged exposure to unchanging stimuli |
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| protects eye and refracts rays of light being projected off objects (e.g. trees, tables) |
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| dark hole in the center of the iris (opening depends on amount of light in environment) |
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| colored part of eye (ranges from light blue to dark brown) |
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| sits directly behind the pupil |
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| process in which the lens focuses light by changing its own thickness |
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| converts electromagnetic energy of light to electrical impulses for transmission to the brain |
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| thin, cylindrical receptor cells sensitive to light. related to vision in dimly lit situations. plays key role in peripheral vision and in night vision |
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| cone-shaped; responsible for sharp focus and color perception. concentrated in the fovea( sensitive region of the retina that allows us to see images more sharply) |
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| vibrates when sound waves hit it |
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| tiny chamber containing three bones (hammer, anvil, stirrup). transmits vibrations to the oval window |
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| changes sound vibrations into a form in which they can be transmitted to the brain |
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| filled with fluid and vibrates in response to sound |
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| covered with hair cells. when bent by vibrations, cells send a neural message to the brain |
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| receptor cells that respond to sweet, sour, salty , & bitter |
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| contain receptor cells, approximately 10,000 distributed across the tongue, mouth, and throat |
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| chemical that transmits pain messages to the brain and is released when a cell is damaged |
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| make us aware of potential dangers to our bodies ( touch, pressure, temperature, pain) |
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| Gestalt Laws of Organization |
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Definition
| series of principles that focus on the ways we organize bits and pieces of information into meaningful wholes. Closure, Proximity, Similarity, Simplicity |
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