simultanagnosia /si·mul·tan·ag·no·sia/ (si″mul-tān″ag-no´zhah) partial visual agnosia, consisting of the inability to comprehend more than one element of a visual scene at the same time or to integrate the parts as a whole.
simultanagnosia
simultanagnosia
si·mul·tan·ag·no·sia (s  m l-t ng-n  zh)n. Inability to recognize multiple elements in a simultaneously displayed visual presentation; the ability to appreciate elements of a scene but not the display as a whole. |
simultanagnosia
[sī′multan′agnō′zhə]
a visual disorder in which a person actually perceives only one element of a picture or object at a time and is unable to absorb the whole. See also Balint's syndrome.
simultanagnosia
Inability to comprehend a whole picture or sustain visual attention across simultaneous elements, although its constituent elements may be recognized. Objects may look fragmented or even sometimes disappear hence the patient may have difficulty recognizing a face as only one part is seen, or difficulty reading. Visual acuity and visual fields are normal. This is often a symptom of Balint's syndrome or the result of a lesion, usually, in both parietal visual cortices, although temporal lobes may also be involved. Syn. simultagnosia; visual disorientation. See Balint's syndrome.
simultanagnosia
Neurology Inability to comprehend > 1 element of a scene at the same time or integrate the parts into a whole
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