Attentional control of early perceptual learning.

  title={Attentional control of early perceptual learning.},
  author={M. Ahissar and S. Hochstein},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={90 12},
  • M. Ahissar, S. Hochstein
  • Published 1993
  • Psychology, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
The performance of adult humans in simple visual tasks improves dramatically with practice. This improvement is highly specific to basic attributes of the trained stimulus, suggesting that the underlying changes occur at low-level processing stages in the brain, where different orientations and spatial frequencies are handled by separate channels. We asked whether these practice effects are determined solely by activity in stimulus-driven mechanisms or whether high-level attentional mechanisms… Expand
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