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Sensation + Percep
Unit 2
| Question | Answer |
|---|---|
| define sensation | process of receiving information from the environment |
| define perception | process of assembling and organizing sensory information to make it meaningful |
| what is the most dominant sense? | vision |
| how does color work?how do we see the colors black and white? | what we see is light reflected off objects. light from the sun or light bulbs start as white light, the light before it is broken into different frequencies. there isn't such thing as color, just different light wavelengths bouncing back. |
| what is the iris? | colored circular muscle that opens and closes, forming larger and smaller circles to control the amount of light getting into the eye. |
| what's is the lens? | part of the eye that focuses an image on the retina. similar to a camera lens it focuses to you can see clearly. if not shaped correctly, objects fall short or overshoot |
| what's the retina? | its the back of the eye, which contains millions of receptors for light |
| whats's the rods function in the retina | visual receptor most sensitive to violet-purple wavelengths; very sensitive for night-visions, "sees" only black and white. responds well to low level of light, only provide a rough outline |
| what's the cones function in the retina | visual receptor that responds during daylight, "sees" color. shut off with little or no light; provide sharpness of vision |
| define pitch | how high or low a sound is |
| size constancy | ability to keep the size of an object the same in our mind regardless of where it is located and if size has appeared to change. |
| color constancy | ability to see an object as the same color even if the color seems to have changed due to a change in environment. |
| brightness constancy | ability to keep an object's brightness the same/constant as the object is moved to various environment. brightness constancy refers to the sheen or shininess an object gives off. |
| shape constancy | ability to perceive an object as having the same shape regardless of the angle at which it is seen. |
| space constancy | ability to keep objects in the environment steady by perceiving either ourselves or outside objects as moving |
| binocular cues | requires both eyes |
| monocular cues | requires one eye |
| simplicity organization | brain organizes visual things into the simplest form possible (shapes, letters numbers) |
| similarity organization | brain organizes things by similarity (look alike) *put like things together, separate things that are different* |
| proximity organization | brain organizes things by distance (objects close together as one group vs far apart as another group) |
| closure organization | brain organizes things by distance (objects close together as one group vs far apart as another group) |
| continuity organization | brain organizes things by seeing smooth, continuous lines. |
Created by:
anael
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