Alzheimer disease constricts the dynamic range of spatial attention in visual search

@article{Parasuraman2000AlzheimerDC,
  title={Alzheimer disease constricts the dynamic range of spatial attention in visual search},
  author={Raja Parasuraman and Pamela M. Greenwood and Gene E. Alexander},
  journal={Neuropsychologia},
  year={2000},
  volume={38},
  pages={1126-1135}
}
A cued visual search task was used to examine the dynamic range over which spatial attention affects target identification during visual search. Precues varied in validity (valid, invalid, or neutral) and in precision (cue size) of target localization. Participants were "young-old" (65-74 years) and "old-old" (75-85 years) elderly adults and individuals in the mild stage of dementia of the Alzheimer type (DAT). For all participants, search was speeded as the precision with which a precue… Expand
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