We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Dynamic predictions: oscillations and synchrony in top-down processing.
- Authors
Engel, A K; Fries, P; Singer, W
- Abstract
Classical theories of sensory processing view the brain as a passive, stimulus-driven device. By contrast, more recent approaches emphasize the constructive nature of perception, viewing it as an active and highly selective process. Indeed, there is ample evidence that the processing of stimuli is controlled by top-down influences that strongly shape the intrinsic dynamics of thalamocortical networks and constantly create predictions about forthcoming sensory events. We discuss recent experiments indicating that such predictions might be embodied in the temporal structure of both stimulus-evoked and ongoing activity, and that synchronous oscillations are particularly important in this process. Coherence among subthreshold membrane potential fluctuations could be exploited to express selective functional relationships during states of expectancy or attention, and these dynamic patterns could allow the grouping and selection of distributed neuronal responses for further processing.
- Publication
Nature reviews. Neuroscience, 2001, Vol 2, Issue 10, p704
- ISSN
1471-003X
- Publication type
Journal Article
- DOI
10.1038/35094565