Sunday, March 4, 2018
tin foil hats
Brain
activity and connectivity are distributed in the three-dimensional
space and evolve in time. It is important to image brain dynamics with
high spatial and temporal resolution. Electroencephalography (EEG) and
magnetoencephalography (MEG) are noninvasive measurements associated
with complex neural activations and interactions that encode brain
functions. Electrophysiological source imaging estimates the underlying
brain electrical sources from EEG and MEG measurements. It offers
increasingly improved spatial resolution and intrinsically high temporal
resolution for imaging large-scale brain activity and connectivity on a
wide range of timescales. Integration of electrophysiological source
imaging and functional magnetic resonance imaging could further enhance
spatiotemporal resolution and specificity to an extent that is not
attainable with either technique alone. We review methodological
developments in electrophysiological source imaging over the past three
decades and envision its future advancement into a powerful functional
neuroimaging technology for basic and clinical neuroscience
applications.
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