Visual Neglect
Visual neglect (also called hemispatial neglect or unilateral spatial neglect) differs from hemianopia in that it is a perceptual deficit rather than a visual one. Unlike patients with hemianopia who actually don't see, those with visual neglect have no trouble seeing but are impaired in attending to and processing the visual information they receive. Whereas hemianopia can be assuaged by allowing patients to move their eyes around a visual scene (ensuring that the entire scene makes it into their intact visual field), neglect cannot. Neglect can also apply to auditory or tactile stimuli and can even leave a patient unaware of one side of his or her own body.
Ellis and Young (1998) showed that neglect can also affect patients' mental maps such that if they are asked to picture themselves standing in a familiar location and name the buildings around them, they will neglect to name the buildings on their impaired side but will be able to name them when asked to mentally face the opposite direction.
Some patients with neglect also have hemianopia, however the two often occur independent of one another.
Read more about this topic: Hemianopsia
Famous quotes containing the words visual and/or neglect:
“I may be able to spot arrowheads on the desert but a refrigerator is a jungle in which I am easily lost. My wife, however, will unerringly point out that the cheese or the leftover roast is hiding right in front of my eyes. Hundreds of such experiences convince me that men and women often inhabit quite different visual worlds. These are differences which cannot be attributed to variations in visual acuity. Man and women simply have learned to use their eyes in very different ways.”
—Edward T. Hall (b. 1914)
“The general Mistake among us in the Educating of our Children, is, That in our Daughters we take Care of their Persons and neglect their Minds; in our Sons, we are so intent upon adorning their Minds, that we wholly neglect their Bodies.”
—Richard Steele (1672–1729)