Magnetoencephalography - Methods
Research News and Information

Sunday, November 22, 2009

Magnetoencephalography and magnetic source imaging in epilepsy.

29 Sep 2009 Magnetoencephalograpy (MEG) and Electroencephalography (EEG) provide physicians with complementary data and should not be regarded as mutually exclusive evaluative methods of cerebral activity. Relevant to this edition, MEG applications related to ... Read more...

Epileptiform EEG spikes and their functional significance.

29 Sep 2009 Field potentials detected in the space surrounding cellular elements of the nervous system are essential in the diagnosis of epileptic seizures. This article describes the elementary mechanisms underlying the generation of field potentials and the ... Read more...

Misleading functional magnetic resonance imaging mapping of the cortical hand representation in a 4-year-old boy with an arteriovenous malformation of the central region.

29 Sep 2009 Functional MR imaging is dependent on the hemodynamic response function of the brain. Cerebrovascular anomalies may lead to hemodynamic artifacts, contorting the true localization of neural activation. This is illustrated in the case of a 4-year-old ... Read more...

Latest indexed articles for 'Magnetoencephalography - Methods'

These are the very latest articles for this heading:

• Magnetoencephalography and magnetic source imaging in epilepsy. 29 Sep 2009
• Epileptiform EEG spikes and their functional significance. 29 Sep 2009
• The interictal spike: what does it mean? 29 Sep 2009
• Misleading functional magnetic resonance imaging mapping of the cortical hand representation in a 4-year-old boy with an arteriovenous malformation of the central region. 29 Sep 2009
• Aberrant frontoparietal function during recognition memory in schizophrenia: a multimodal neuroimaging investigation. 7 Sep 2009
• Magnetic source imaging. 3 Sep 2009
• Advanced time-series analysis of MEG data as a method to explore olfactory function in healthy controls and Parkinson's disease patients. 30 Aug 2009
• Random fields--union intersection tests for detecting functional connectivity in EEG/MEG imaging. 30 Jul 2009
• Functional brain connectivity and neurocognitive functioning in patients with long-standing type 1 diabetes with and without microvascular complications: a magnetoencephalography study. 5 Jul 2009
• Evoked magnetic fields as a tool to optimize therapeutic electrical stimulation of the sacral surface. Jul 2009
• Imaging of spontaneous neuromagnetic activity in a patient with internal carotid artery stenosis. 29 Jun 2009
• Modulation of medial temporal lobe activity in epilepsy patients with hippocampal sclerosis during verbal working memory. 29 Jun 2009
• Sequences of cortical activation for tactile pattern discrimination using magnetoencephalography. 29 Jun 2009
• Similarities between simulated spatial spectra of scalp EEG, MEG and structural MRI. 24 Jun 2009
• Auditory processing in children with language-based learning problems: a magnetencephalography study. 15 Jun 2009
• Decoding center-out hand velocity from MEG signals during visuomotor adaptation. 14 Jun 2009
• Single-trial analysis of cortical oscillatory activities during voluntary movements using empirical mode decomposition (EMD)-based spatiotemporal approach. 10 Jun 2009
• Magnetoencephalographic correlates of processes supporting long-term memory judgments. 4 Jun 2009
• Detection of event-related modulations of oscillatory brain activity with multivariate statistical analysis of MEG data. 30 May 2009
• Dynamic Granger-Geweke causality modeling with application to interictal spike propagation. 30 May 2009

See a longer list of these articles.

Technical information about 'Magnetoencephalography'

Definition: The measurement of magnetic fields over the head generated by electric currents in the brain. As in any electrical conductor, electric fields in the brain are accompanied by orthogonal magnetic fields. The measurement of these fields provides information about the localization of brain activity which is complementary to that provided by ELECTROENCEPHALOGRAPHY. Magnetoencephalography may be used alone or together with electroencephalography, for measurement of spontaneous or evoked activity, and for research or clinical purposes.

Descriptor UI: D015225

Alternative terms: Magnetoencephalography;

Related Mesh Headings: Transcranial Magnetic Stimulation;

Allowable Qualifiers: adverse effects; classification; drug effects; economics; history; instrumentation; methods; mortality; nursing; psychology; radiation effects; standards; trends; utilization; veterinary; statistics & numerical data; contraindications; ethics;

Tree Number: E01.370.376.500; E01.370.405.440;

History Note: 89

Technical Notes: DF: MAGNETOENCEPHALOGR