| A | B |
|---|
| pupil | Opening in the colored part of the eye. |
| cochlea | Bony tube in the inner ear that contains fluid and neurons. |
| stroboscopic motion | Illusion of movement produced by a rapid progression of images. |
| retina | Sensitive surface of the eye that acts like the film in a camera. |
| olfactory nerve | Nerve that sends information about odors to the brain. |
| difference threshold | Minimum amount of difference that can be detected between two stimuli. |
| photoreceptor | Neuron that is sensitive to light. |
| continuity | Perceptual preference for seeing smooth, continuous patterns. |
| absolute threshold | Weakest amount of a stimulus that can be sensed. |
| closure | Tendency to perceive a whole figure even when there are gaps in sensory input. |
| sensation | The stimulation of sensory receptors and the transmission of sensory information to the brain. |
| perception | The process of organizing and interpreting sensory information. |
| signal-detection theory | The idea that distinguishing sensory stimuli takes into account not only the strength of the stimuli but also such elements as setting and one's physical state, mood, and attitudes. |
| sensory adaptation | The process by which an organism becomes more sensitive to stimuli that are low in magnitude and less sensitive to stimuli that are constant. |
| lens | The transparent structure of the eye that focuses light on the retina. |
| blind spot | The part of the retina that contains no photoreceptors. |
| visual acuity | Keenness or sharpness of vision. |
| complementary | The colors across from each other on the color circle. |
| afterimage | The visual sensation that occurs after the original stimulus has been removed. |
| auditory nerve | The cranial nerve that carries sound from the cochlea of the inner ear to the brain. |
| 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 results from damage to the auditory nerve. |
| gate theory | The suggestion that only a certain amount of information can be processed by the nervous system at a given time. |
| vestibular sense | The sense that provides information about the position of the body. |
| kinesthesis | The sense that provides information about the position and movement of individual body parts. |
| proximity | The perceptual tendency to group together visual and auditory events that are near each other. |
| similarity | The perceptual tendency to group together elements that seem alike. |
| common fate | The tendency to perceive objects that are moving together as belonging together. |
| monocular cues | Cues for distance that may be available to either eye alone. |
| binocular cues | Visual cues for depth that require the use of both eyes. |
| retinal disparity | The binocular cue for perceiving depth based on the difference between the two images of an object that the retina receives as the object moves closer or farther away. |
