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Inferring contextual field interactions from scalp EEG

Published online by Cambridge University Press:  03 September 2003

Mark E. Pflieger*
Affiliation:
Source Signal Imaging, Inc., San Diego, CA 92102 mep@sourcesignal.com
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Abstract

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This commentary highlights methods for using scalp EEG to make inferences about contextual field interactions, which, in view of the target article, may be specially relevant to the study of schizophrenia. Although scalp EEG has limited spatial resolution, prior knowledge combined with experimental manipulations may be used to strengthen inferences about underlying brain processes. Both spatial and temporal context are discussed within the framework of nonlinear interactions. Finally, results from a visual contour integration EEG pilot study are summarized in view of a hypothesis that relates receptive field and contextual field processing to evoked and induced activity, respectively.

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Type
Article Commentary
Copyright
Copyright © Cambridge University Press 2003