| A | B |
|---|
| sensation | the stimulation of sense organs |
| perception | the selection, organization and interpretation of sensory input |
| absolute threshold | the minimum amount of sensory stimulation that an organism can detect |
| sensory adaptation | a gradula decline in sensitivity to prolonged stimulation |
| cones | specialized visual receptors that play a key role in daylight and color vision |
| rods | specialized visual receptorsthat play a key role in night and peripheral vision |
| optic chiasm | the point at which the optic nerves from the inside half of each eye cross over and project to the opposite half of the brain |
| feature detectors | neurons that respond selectively to very specific features of complex stimuli |
| perceptual set | a readiness to perceive a stimulus is a particular way |
| top-down processing | progressing from the whole to its specific elements |
