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22 Cards in this Set
- Front
- Back
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Cones |
Photopic vision, aquity. |
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Rods |
Scotopic vision, dim light. |
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Topological organization |
Visual cortex, fovea is overrepresented in the visual cortex, the peripheral areas receives less representation.
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Cortical visual cells |
elongated shape, detector cells respond to patterns of input from on-off/ off-on cells. |
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Hypercolumn |
In visual cortex representing a part of the visual field, containing cortical cell that respond most vigorously to a specific feature of the visual stimulus. |
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Texture gradient |
Depth cue, elements are evenly spaced appear to be more densly packed when distance from the viewer increases. |
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Stereopsis |
Depth cue, each eye receives slightly different information. |
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Motion parallax |
Depth cue, objects in motion further away from viewer move more slowly across retina than objects that are closer. |
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Gestalt principles of organization |
Object perception following rules of proximity, similarity, closure, continuity and many more. |
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Template-matching model |
Visual stimulus is recognized as a letter by comparing it to stored templates. Only perfect stimuli are recognized. |
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Feature analysis |
Letters are recognized through patterns of features of the letters. |
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Recognition by components theory |
Object is segmented into simple subobjects, geons, that together make up configurations which get recognized. |
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Fusiform gyrus |
Area in temporal lobe that is activated in recognition of faces, or other familiar objects (objects one has been exposed to alot). |
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Speech recognition |
Segmentation the continuous stream of speech into phonemes. |
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Feature analysis of speech |
Phonemes are recognized by features such as place of articulation and voicing. |
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Categorical perception |
The perception of stimuli as belonging to distinct categories and the failure to perceive the gradations among stimuli within a category. Unvoiced phonemes. |
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Word superiority effect |
The increased accuracy in identifying letters in the context of a word, rather than by them selves. Supplementing feature analysis of letters, easier in context. |
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FLMP (model of perception) |
Two independent sources of information: perceptual and context, combined into a best guess of the stimulus identity. |
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Phoneme-restoration effect |
The role of context in perception of speech. Missing phonemes can be restored by looking at a critical word that determines the context. |
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2 1/2-D sketch |
Level of perception after the processing the depth cues. |
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3-D model |
Level of perception after gestalt principles are applied. |
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Edge- and bardetectors |
Visual cells in primary visual cortex that have an antagonist center-surround organization and fire most vigorously when edges or bars are present. |
