Use of magnetoencephalography (MEG) for the functional motor cortex localization: extraction and localization of the motor component in movement preparation processes by Independent Component Analysis

P. 41–42.

Pronko P. K., Chayanov N. V., Prokofyev A. O., Chernyshev V. Boris, Stroganova T. A.

The problem of non-invasive preoperative localization of motor areas in human cortex has not been solved yet. In clinical practice, localization of the hand representation in the primary motor cortex often becomes one of the main goals of the pre-surgical evaluation. In healthy subjects the area of the motor hand representation usually corresponds to certain standard anatomical landmarks (hand knob in the precentral gyrus), which can be easily found in sMRI images. Unfortunately, in patients with various brain lesions these landmarks may be absent or not corresponding to the area of the motor cortex. In such cases, location of irreplacable areas must be determined according to their functional and/or temporal dynamical characteristics.

It might become a promising method of localizing primary motor area by way of taking into account the characteristic properties of the primary motor cortex temporal dynamics during movement preparation.

Keywords: MEG, non-invasive preoperative localization, motor areas, human cortex, Independent Component Analysis, motor component

Publication based on the results of: The Psychophysiology of Sustained Attention and Perception in Conditions of Impeded Decision Making in Relation to Individual Differences (2012)

In book

International Symposium on Functional Neuroimaging: Basic Research and Clinical Applications. Abstracts

MSUPE, 2012.