Terms : Hide Images
| 38663398 | absolute threshold | the level of sensory stimulation necessary for sensation to occur | 0 | |
| 38663399 | adaptation | the gradual loss of attention to unneeded or unwanted sensory information | 1 | |
| 38663400 | sensation | the process of receiving information from the environment | 2 | |
| 38663401 | perception | the process of organizing and assembling sensory information to make it meaningful | 3 | |
| 38663402 | white light | light as it originates from the sun or a bulb before it is broken into different frequencies | 4 | |
| 38663403 | cornea | the clear outer covering of the eye, behind which is fluid | 5 | |
| 38663404 | iris | a colored circular muscle that opens and closes, forming larger and smaller circles to control the amount of light getting into the eye | 6 | |
| 38663405 | lens | the part of the eye that focuses an object on the retina | 7 | |
| 38663406 | pupil | the opening in the eye | 8 | |
| 38663407 | retina | the back of the eye, which contains millions of receptors for light | 9 | |
| 38663408 | blind spot | the portion of the retina through which the optic nerve exits and where there are no receptors for light waves | 10 | |
| 38663409 | rod | a visual receptor most sensitive to the violet-purple wave lengths; very sensitive for night vision; "sees" only black and white | 11 | |
| 38663410 | cone | a visual receptor that responds during daylight; "sees" color | 12 | |
| 38663411 | color blindness | inability to perceive certain colors, such as red and green | 13 | |
| 38663412 | afterimage | image that remains after stimulation of the retina has ended. Cones not used fire to bring the visual system back in balance. | 14 | |
| 38663413 | subliminal perception | Stimulation presented below the level of consciousness | 15 | |
| 38663414 | audition | the sense of hearing | 16 | |
| 38663415 | pitch | how high or low a sound is | 17 | |
| 38663416 | timbre | the complexity of a sound | 18 | |
| 38663417 | intensity | how loud a sound is | 19 | |
| 38663418 | decibles | a measure of how loud a sound is | 20 | |
| 38663419 | eardrum | A piece of skin stretched over the entrance of the ear; vibrates to sound. | 21 | |
| 38663420 | cochlea | a snail-shaped part of the ear, filled with fluid and small hairs that vibrate to incoming sound | 22 | |
| 38663421 | hair cells | receptor cells for hearing found in the cochlea | 23 | |
| 38663422 | cilia | hairlike extensions on cells | 24 | |
| 38663423 | auditory nerve | bundle of nerves carrying sound to the brain | 25 | |
| 38663424 | cutaneous receptors | nerve receptors in the skin that respond to pressure, temperature, or pain | 26 | |
| 38663425 | olfaction | the sense of smell | 27 | |
| 38663426 | olfactory bulbs | units that receive odor molecules and communicate their nature to the brain | 28 | |
| 38663427 | pheromones | odor chemicals that communicate a message | 29 | |
| 38663428 | taste receptors | chemical receptors on the tongue that decode molecules of food or drink to identify them. | 30 | |
| 38663429 | size constancy | the ability to retain the size of an object regardless of where it is located | 31 | |
| 38663430 | color constancy | the ability to perceive an object as the same color regardless of the environment | 32 | |
| 38663431 | shape constancy | the ability to perceive an object as having the same shape regardless of the angle at which it is seen | 33 | |
| 38663432 | brightness constancy | the ability to keep an object's brightness constant as the object is moved to various environments | 34 | |
| 38663433 | space constancy | the ability to keep objects in the environment steady be perceiving either ourselves or outside objects as moving | 35 | |
| 38663434 | size constancy | the ability to retain the size of an object regardless of where it is located | 36 | |
| 38663435 | depth perception | the ability to see the relation of objects in space | 37 | |
| 38663436 | visual cliff | an apparatus used to demonstrate depth perception | 38 | |
| 38663437 | retinal disparity | the differences between the images provided by the two retinas. When the images are brought together in the brain, they provide a sense of depth | 39 | |
| 38663438 | texture gradient | how rough or smooth objects appear; used in depth perception | 40 | |
| 38663439 | gestalt | an organized whole, shape, or form | 41 | |
| 38663440 | similarity | a perceptual cue that involves grouping like things together | 42 | |
| 38663441 | proximity | a perceptual cue that involves grouping together things are near one another | 43 | |
| 38663442 | closure | the process of filling in the missing details of what is viewed | 44 | |
| 38663443 | illusions | inaccurate perceptions | 45 | |
| 38663444 | Muller-Lyer illusion | illusion in which one line in a picture with two equal-length lines seems longer | 46 | |
| 38663445 | reversible figures | illusion in which the same object is seen as two alternating figures- first one, then the other | 47 |
