Thilo Womelsdorf and Pascal Fries, 2007
Abstract
Attention selectively enhances the influence of neuronal
responses conveying information about relevant sensory
attributes. Accumulating evidence suggests that this selective
neuronal modulation relies on rhythmic synchronization at local
and long-range spatial scales: attention selectively
synchronizes the rhythmic responses of those neurons that are
tuned to the spatial and featural attributes of the attended
sensory input. The strength of synchronization is thereby
functionally related to perceptual accuracy and behavioural
efficiency. Complementing this synchronization at a local level,
attention has recently been demonstrated to regulate which
locally synchronized neuronal groups phase-synchronize their
rhythmic activity across long-range connections. These results
point to a general computational role for selective
synchronization in dynamically controlling which neurons
communicate information about sensory inputs effectively.
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