The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Eyes-open and eyes-closed are two widely accepted resting conditions in neuroimaging study. When alternating between the two conditions, electroencephalogram (EEG) studies have reported the modulation of alpha band (8-12 Hz) oscillation. Functional magnetic resonance imaging (fMRI) studies have found modulation of blood-oxygen-level dependent (BOLD) response. The neuronal correlates of the two modulations...
We propose a new algorithm to derive the anisotropic conductivity of the cerebral white matter (WM) from the diffusion tensor MRI (DT-MRI) data. The transportation processes for both water molecules and electrical charges are described through a common multicompartment model that consists of axons, glia, or the cerebrospinal fluid (CSF). The volume fraction (VF) of each compartment varies from voxel...
In response to a need of establishing a high-resolution spatiotemporal neuroimaging technology, tremendous efforts have been directed upon developing multimodal neuroimaging strategies that combine the complementary advantages of high-spatial-resolution functional magnetic resonance imaging (fMRI) and high-temporal-resolution electroencephalography (EEG) or magnetoencephalography (MEG). A critical...
The purpose of the present study is to examine the effects of the White Matter (WM) anisotropy on the scalp electroencephalogram (EEG). The finite difference method (FDM) was used to model the head volume conductor with three kinds of inhomogeneous and anisotropic WM conductivities estimated by the volume constraint method. A current dipole was used to simulate the brain electrical activity with varying...
Magnetic resonance electrical impedance tomography (MREIT) is used to reconstruct the conductivities of the brain tissues, including the isotropic CSF, gray matter and the anisotropic white matter. The target conductivity of the anisotropic white matter is based on the data from Diffusion Tensor Magnetic Resonance Imaging. A series of computer simulation results suggest the feasibility of the proposed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.