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simple stimulation of a sense organ.
or
taking in the information from our enviroment. |
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What takes place when many sensors in the body convert physical signals from the environment into encoded neural signals sent to the central nervous system. |
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The organization, identification, and interpretation of a sensation in order to form a mental representation. |
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SIGHT, HEARING, TASTE, TOUCH, SMELL |
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method that measure the strength of a stimulus and the observer's sensitivity to that stimilus. |
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the minimal intensity needed to just barely detect a stimulus. |
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Just Noticeable Difference (JND) |
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The minimal change in a stimulus that can just barely be detected. |
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The just noticeable difference of a stimulus is a constant proportion despite variations in intensity. |
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an observation that the response to a stimilus depends both on a person's sensitivity to the stimulus in the presence of noise and on a person's response criterion. |
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Sensitivity to prolonged stimulation tend to decline overtime as an organism adapt to current conditions. |
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The perceptual experience of one sense that is evoked by another sense. |
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The LENGTH of a waves determines |
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Definition
it hue, or what human perceive as color |
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The intensity or AMPLITUDE of a wave |
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Definition
how high the peak are-determines what we perceive as the brightness light. |
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is the number of distinct wavelength that make up light. Purity correspond to what human perceive as saturation, or richness of color. |
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The FREQUENCY of the sound wave |
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Definition
are perceived by humans change in pitch. |
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The AMPLITUDE of a sound wave |
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Definition
refers to it height, relative to the threshold for human hearing, which it corresponds to loudness. |
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Differences in the COMPLEXITY of sound waves |
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mix of frequencies, correspond to timbre. |
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How high or low a sound is. |
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A listener's experience of sound quality or resonance. |
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photoreceptors that detect color, operate under normal daylight conditions and allow us to focus on fine detail. |
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Definition
Photorecepetors that become active under low-light conditions for night vision |
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Term
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Definition
-Cornea
-Pupil
-Iris
-len
-retina
-fovea
-optic nerve
-blind spot |
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Definition
-white, flexible, smooth outer layer
-first point light hit
-bend light waves allowing it to go through pupil |
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-the colored part of our eye
-allows different amounts of light in eyes
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make the image that eyes see, clear, focus. |
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-object are seen the most clearly in this layer
-composed of 2 photoreceptor: cones & rod
-Light-sensitive tissue lining the back of the eyeball |
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An area of the retina where vision is the clearest and there are no rods at all.
-ONLY CONES |
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bundle of nerves in back of eyeball, lead to occiptal lobe. |
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Definition
A location in the visual field that produces no sensation on the retina because the corresponding areas of the retina contains neither rods nor cones and therefore has no mechanism to sense light. |
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