| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6266204 | Current Opinion in Neurobiology | 2015 | 5 Pages |
â¢Top-down processing in the neocortex supports important cognitive functions.â¢Top-down neocortical influences are carried by interareal beta-frequency synchrony.â¢Large-scale distributed networks may be the source of top-down neocortical influence.â¢Top-down beta-frequency synchrony may convey behavioral context to sensory cortex.
Top-down processing in the neocortex underlies important cognitive functions such as predictive coding and attentional set. We review evidence indicating that top-down neocortical processes are carried by interareal synchrony, particularly in the beta frequency band. We hypothesize that top-down neocortical signals in the beta band convey behavioral context to low-level sensory neurons. We further speculate that large-scale distributed networks, self-organized at the highest hierarchical levels, are the source of top-down signals in the neocortex.
