Magnetoencephalography
Research News and Information

Saturday, November 21, 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'

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
• New directions in clinical imaging of cortical dysplasias. 29 Sep 2009
• Aberrant frontoparietal function during recognition memory in schizophrenia: a multimodal neuroimaging investigation. 7 Sep 2009
• Magnetic source imaging. 3 Sep 2009
• MEG evidence that the central auditory system simultaneously encodes multiple temporal cues. 30 Aug 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
• Neurosurgical management of intractable rolandic epilepsy in children: role of resection in eloquent cortex. Clinical article. 30 Aug 2009
• Transcallosal connectivity and cortical rhythms: findings in children with spina bifida. 24 Aug 2009
• Lateralizing language with magnetic source imaging: validation based on the Wada test. 5 Aug 2009
• American Clinical MEG Society (ACMEGS) position statement: the value of magnetoencephalography (MEG)/magnetic source imaging (MSI) in noninvasive presurgical evaluation of patients with medically intractable localization-related epilepsy. 30 Jul 2009
• Editorial: assessing MEG. 30 Jul 2009
• Relationships between sleep spindles and activities of the cerebral cortex after hemispheric stroke as determined by simultaneous EEG and MEG recordings. 30 Jul 2009
• Random fields--union intersection tests for detecting functional connectivity in EEG/MEG imaging. 30 Jul 2009
• Functional brain imaging of swallowing: an activation likelihood estimation meta-analysis. 30 Jul 2009
• Human brain networks in health and disease. 30 Jul 2009
• Magnetoencephalography in Landau-Kleffner syndrome. 30 Jul 2009
• Neurophysiology of CSWS-associated cognitive dysfunction. 30 Jul 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