| A | B |
|---|
| Sensation | the stimulation of sensory receptors and the transmission of sensory information to the central nervous system |
| Perception | the psychological process of organizing and interpreting sensory stimulation ( |
| Abosolute Threshold | the weakest amount of a particular stimulus that can be sensed |
| Difference Threshold | the minimum amount of differ- ence that can be detected between two stimuli |
| sensory adaptation | the process by which people become more sensitive to weak stimuli and less sensitive to unchanging stimuli |
| pupil | the opening in the center of the eye that adjusts to the amount of light entering |
| lens | the transparent structure of the eye that focuses light on the retina |
| retina | the light-sensitive inner surface of the eye that contains the rods, cones, and neurons that process visual stimuli |
| visual acuity | keenness or sharpness of vision |
| cochlea | the fluid-filled structure of the inner ear that transmits sound impulses to the auditory nerve |
| conductive deafness | hearing loss caused by damage to the middle ear, thus interfering with the transmission of sound waves to the cochlea |
| sensorineural deafness | deafness that usually results from damage to the inner ear or to the auditory nerve |
| olfactory nerve | the nerve that transmits information about odors from receptor neurons to the brain |
| gate theory | the suggestion that only a certain amount of information can be processed by the nervous system at a given time |
| kinesthesis | the sense that provides information about the position and movement of individual body parts |
| closure | the tendency to perceive a complete or whole figure even when there are gaps in sensory information |
| monocular cues | cues for distance that need only one eye to be perceived |
| binocular cues | visual cues for depth that require the use of both eyes |
