Oscillatory Event-Related Brain Dynamics: 271 (NATO Science Series A:, 271) - Hardcover

 
9780306448942: Oscillatory Event-Related Brain Dynamics: 271 (NATO Science Series A:, 271)

Synopsis

How does the brain code and process incoming information, how does it recog­ nize a certain object, how does a certain Gestalt come into our awareness? One of the key issues to conscious realization of an object, of a Gestalt is the attention de­ voted to the corresponding sensory input which evokes the neural pattern underly­ ing the Gestalt. This requires that the attention be devoted to one set of objects at a time. However, the attention may be switched quickly between different objects or ongoing input processes. It is to be expected that such mechanisms are reflected in the neural dynamics: Neurons or neuronal assemblies which pertain to one object may fire, possibly in rapid bursts at a time. Such firing bursts may enhance the synaptic strength in the corresponding cell assembly and thereby form the substrate of short-term memory. However, we may well become aware of two different objects at a time. How can we avoid that the firing patterns which may relate to say a certain type of move­ ment (columns in V5) or to a color (V 4) of one object do not become mixed with those of another object? Such a blend may only happen if the presentation times be­ come very short (below 20-30 ms). One possibility is that neurons pertaining to one cell assembly fire syn­ chronously. Then different cell assemblies firing at different rates may code different information.

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Synopsis

Proceedings of the September 1993 NATO Advanced Research Workshop. Papers focus on the exploration of oscillations in the EEG and MEG gamma-band. Topics include a survey of event-related brain oscillations, epileptic oscillations in a small invertebrate network, axonal conduction delay and temporal structure in brain dynamics, oscillations and sync

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9781489913098: Oscillatory Event-Related Brain Dynamics: (Closed)): 271 (NATO Science Series A:)

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ISBN 10:  1489913092 ISBN 13:  9781489913098
Publisher: Springer, 2013
Softcover