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Leach PSY chapter 4
| Question | Answer |
|---|---|
| sensation | the stimulation of sensory receptors and the transmission of sensory information to the brain |
| perception | the process of organizing and interpreting sensory information |
| absolute threshold | the smallest amount of a particular stimulus that can be detected |
| difference threshold | the minimum difference that an individual can detect between two stimuli |
| 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 |
| pupil | the opening in the center of the eye that adjusts to allow light to enter |
| 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 |
| photoreceptors | neurons that respond to light |
| 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 |
| cochlea | the fluid-filled structure of the inner ear that transmits sound impulses to the auditory nerve |
| 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 |
| olfactory nerve | the nerve that transmits information about odors from olfactory receptors 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 |
| 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 |
| closure | the tendency to perceive a complete or whole figure even when there are gaps in sensory information |
| 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 |
| continuity | the perceptual tendency to group stimuli into continuous patterns |
| common fate | the tendency to perceive objects that are moving together as belonging together |
| stroboscopic motion | a visual illusion in which the perception of motion is generated by the presentation of a series of stationary images in rapid succession |
| monocular clues | cues for distance that may be available to either eye alone |
| binocular clues | visual cues for depth that require the use of both eyes |
| retinal disparity | a binocular cue for perceiving depth based on the difference between the two images of an abject that the retina receives as the object moves closer or farther away |
Created by:
CoachLeach
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