Top-down attention switches coupling between low-level and high-level areas of human visual cortex.

@article{AlAidroos2012TopdownAS,
  title={Top-down attention switches coupling between low-level and high-level areas of human visual cortex.},
  author={Naseem Al-Aidroos and Christopher P. Said and Nicholas B. Turk-Browne},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2012},
  volume={109 36},
  pages={14675-80}
}
Top-down attention is an essential cognitive ability, allowing our finite brains to process complex natural environments by prioritizing information relevant to our goals. Previous evidence suggests that top-down attention operates by modulating stimulus-evoked neural activity within visual areas specialized for processing goal-relevant information. We show that top-down attention also has a separate influence on the background coupling between visual areas: adopting different attentional goals… CONTINUE READING