Spatial attention does not require preattentive grouping.

@article{Vecera1997SpatialAD,
  title={Spatial attention does not require preattentive grouping.},
  author={Shaun Vecera and Marlene Behrmann},
  journal={Neuropsychology},
  year={1997},
  volume={11 1},
  pages={
          30-43
        }
}
Does spatial attention follow a full preattentive analysis of the visual field, or can attention select from ungrouped regions of the visual field? We addressed this question by testing an apperceptive agnosic patient, J. W., in tasks involving both spatial selection and preattentive grouping. Results suggest that J.W. had intact spatial attention: He was faster to detect targets appearing at cued location relative to targets appearing at uncued locations. However, his preattentive processes… CONTINUE READING
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