| A | B |
| the opening in the eye that lets light in | pupil |
| flexible eye structure that changes its shape to focus light on the retina | lens |
| the back of the eye that contains receptor cells | retina |
| the nerve that carries eye signals to the brain | optic nerve |
| the difference between the images stimulating each eye | retinal disparity |
| the nerve that carries impulses from the inner ear to the brain | auditory nerve |
| nerve or sensoineural deafness can occur when this is damaged | cochlea |
| nerve for smell | olfactory |
| sensors on your tongue | taste buds |
| the sense of movement and body position | kinesthesis |
| the ability to gain information by some means other than the ordinary senses | extrasensory perception |
| perceptions that misrepresent physical stimuli | illusions |
| the tendancy to perceive certain objects in the same way regardless of changing angle, distance, or lighting | constancy |
| the apparent movement of objects that occurs when you move your head from side to side or when you walk around | motion parallax |
| parallel lines converge when stretched into the distance | linear perspective |
| the farther removed an object is, the less detail we can identify | texture-density gradient |
| the overlapping of images causes us to view the objects we can see in its entirety to be closer than one whose outline is interrupted by another object | interposition |
| brief messages sent below the absolute threshold | subliminal |
| what occurs when a stimulus activates a receptor | sensation |
| the organization of sensory information into meaningful experiences | perception |
| the study of how sensory experiences and what causes them | psychophysics |
| the weakest amount of a stimulus that a person can detect half the time | absolute threshold |
| the smallest change in a physical stimulus that can be detected half the time | difference threshold |
| the smallest increase or decrease in the intensity of a stimulus that a person is able to detect half the time | Just noticeable difference |
| the larger or stroner a stimulus, the large the change required for a person to notice the change | Weber's Law |
| our bodies adjust as we are bombarded with sensations | adaptation |
| the study of people's tendencies to make correct judgments in detecting the presence of stimuli | signal-detection theory |