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How we change what others think, feel, believe and do
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How we change what others think, feel, believe and do |
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Unilateral neglect
Explanations > Brain stuff > Unilateral neglect Description | Discussion | See also
DescriptionA person with unilateral neglect will ignore certain items on their left side which are in plain sight. For example, when asked to count people in a room, they will only count those to their right. They will also ignore the left side of their own body. When asked to draw a clock, they typically draw a full circle, but put all the numbers on the right side. DiscussionThis is caused by damage to the right parietal lobe, which processes information about movement and location of the body as well as the location of external objects. As with blindsight, subjects can have a form of unconscious perception and will give correct answers when asked about left-hand stimuli (and surprise themselves in doing so correctly). Interestingly, there is no reversed effect, with things on the right being ignored. Damage to the left parietal lobe does not have an alternate unilateral effect. See alsoVolpe, B.T., LeDoux, J.E., & Gazzaniga, M.S. (1979). Information processing of visual stimuli in an extinguished field. Nature, 282, 722-724. |
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