Neural systems control of spatial orienting.

  title={Neural systems control of spatial orienting.},
  author={Michael I. Posner and Yoav Cohen and Robert D. Rafal},
  journal={Philosophical transactions of the Royal Society of London. Series B, Biological sciences},
  volume={298 1089},
  • M. PosnerY. CohenR. Rafal
  • Published 25 June 1982
  • Psychology, Biology
  • Philosophical transactions of the Royal Society of London. Series B, Biological sciences
A peripheral visual cue in an empty field (1) often summons head or eyes, or both, (2) improves efficiency at the cued position while attention is directed to it, even without overt movements, and (3) reduces processing efficiency at the cued position once attention is withdrawn. We have studied the time course and the effects of mid-brain and cortical damage on these components of orienting. The facilitation arises from shifts in covert attention. In cases of mid-brain degeneration due to… 

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