Source Signal Imaging - EMSE

Source Signal Imaging logo Source Signal Imaging - EMSE

EMSE is a unique software package that consists of different modules, which together form a truly complete package for the use, processing and integration of EEG, MEG, MRI and fMRI data. The software runs under Windows on practically any PC.

EMSE Modules

To determine the electrode locations and the shape of the head. Supports the use of Polhemus Fastrak (NL) as measuring device for the 3D coordinates.Can also be used for localizing other sensors, like the MEG sensors.

Data editor

Reads your EEG and MEG data. Then you can process this data with operations like filters, frequency analysis, PCA, Wavelet analysis, topographic mapping, statistics, dipole simulations, ERP, Averaging, artifact rejection etc.

Source Estimator

From the EEG and MEG the source of the activity in the brains can be calculated with this module. Several source models are available, like the spatiotemporal dipole model and distributed source models like LORETA, MUSIC, PRoMS. It is possible to also fit dipoles in the frequency domain and use the cortical surface as a contstraint. The dipole search can be guided by fMRI results!

For the head model (volume conductor) either the spherical model can be used, or the realistically shaped volume conductor, by means of the Boundary Element Model (BEM).

MR Viewer

The MR Viewer reads MR data (and other image modalities like PET). In this module you can display the results of the source estimator. This module also takes care of the registration of different image modalities with each other (for instance PET and fMRI data).

Image Processor

Extensive image processing takes place in this module. It includes operators like filters, edge detection, segmentation (for creating the head model for instance), MESH generation, BEM modelling, cortex inflation. For most functions easy to use Wizards are available that guide you through the operation.


In this module, everything comes together. All available information can be viewed here in 3D; sources (dipoles and CSD), electrodes, the head and the brain. Through the Windows Clipboard it is easy to transfer graphics to any other windows application like word or powerpoint for your presentation or publication.