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Mining event-related brain dynamics
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DOI：10.1016/j.tics.2004.03.008.png)
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摘要
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This article provides a new, more comprehensive view of event-related brain dynamics founded on an information-based approach to modeling electro-encephalographic (EEG) dynamics. Most EEG research focuses either on peaks 'evoked' in average event-related potentials (ERPs) or on changes 'induced' in the EEG power spectrum by experimental events. Although these measures are nearly complementary, they do not fully model the event-related dynamics in the data, and cannot isolate the signals of the contributing cortical areas. We propose that many ERPs and other EEG features are better viewed as time/frequency perturbations of underlying field potential processes. The new approach combines independent component analysis (ICA), time/frequency analysis, and trial-by-trial visualization that measures EEG source dynamics without requiring an explicit head model.
Keyword:
INDEPENDENT COMPONENT ANALYSIS
BLIND SEPARATION
SYNCHRONOUS OSCILLATION
EEG
GAMMA
RESPONSES
RHYTHMS
PHASE
MODEL
THETA
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17.2
论文数:
3.6K
被引数:
3.5W
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