Functional neuroimaging of language using magnetoencephalography
نویسندگان
چکیده
منابع مشابه
Functional Neuroimaging of Language Using Magnetoencephalography.
Magnetoencephalography (MEG) is a novel functional brain mapping technique capable of non-invasively measuring neurophysiological activity based on direct measures of the magnetic flux at the head surface associated with the synchronized electrical activity of neuronal populations. Among the most actively sought applications of MEG has been localization of language-specific cortex. This is in p...
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One of the oldest questions in cognitive science is whether cognitive operations are modular or distributed across domains. We propose that fMRI has made a unique contribution to this question by elucidating the nature of structure-function relations. We focus our discussion on language, which is the classic domain for arguments in favor of domain specificity and a fixed neural architecture. We...
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The reliability of language-specific brain activation profiles was assessed using Magnetoencephalography (MEG) in five experiments involving ninety-seven normal volunteers of both genders ranging in age from seven to eighty-four years. MEG data were analyzed with a fully automated method to eliminate subjective judgments in the process of deriving the activation profiles. Across all experiments...
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We discuss the application of beamforming techniques to the field of magnetoencephalography (MEG). We argue that beamformers have given us an insight into the dynamics of oscillatory changes across the cortex not explored previously with traditional analysis techniques that rely on averaged evoked responses. We review several experiments that have used beamformers, with special emphasis on thos...
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ژورنال
عنوان ژورنال: Physics of Life Reviews
سال: 2009
ISSN: 1571-0645
DOI: 10.1016/j.plrev.2008.08.001