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Review / ERP
Source analysis
Source coherence
MRI
Statistics
fMRI integration
More than just dipole source localization
BESA covers the whole range of signal processing and analysis from the acquired raw data to dynamic source images:
Data review and processing
Source montages and 3D whole-head mapping
ERP analysis and averaging
Source localization and source imaging
Cortical mapping and visualization in standard MRI
Individual MRI and fMRI integration with BrainVoyager
Source coherence and time-frequency analysis
Source analysis
BESA has a highly interactive and easy-to-use window for source analysis. All relevant information is available at one glance including data, PCA, source waveforms and source localization in 3D head schemes or standardized MRI. You can choose among a variety of state-of-the-art source modeling techniques and head models. 2D and 3D source imaging can be performed with projection onto a standardized MRI.
Source coherence
Source coherence analysis reveals the functional connectivity between brain regions. This is achieved by transforming the surface signals into brain activity using brain source montages derived from multiple source models. The new Source Coherence Module provides an extremely fast and user-friendly implementation of time-frequency analysis based on complex demodulation.
fMRI integration
For an easy superposition of the results of source analysis with individual MRI and fMRI data, BESA provides an interactive link to Rainer Goebel's BrainVoyager program. The bidirectional connection of the two programs allows for source seeding from fMRI clusters with one mouse click.
Review / ERP
This main BESA window provides many tools for reviewing and processing of your EEG or MEG data. Raw data are directly read using readers implemented for many EEG and MEG file formats. Data processing steps include digital filtering, artifact detection and correction, computation of correlation and spectral analysis. All these steps can be performed easily with a few mouse clicks. A variety of different display options allows for convenient review of your data.
Statistics
BESA Statistics is an intuitive tool for computing statistical analyses of EEG and MEG results analyzed with BESA or other EEG analysis software. It is free standing, and does not require a BESA license.
MRI
BESA MRI is a CE-certified software to coregister EEG / MEG data with individual MRI data. BESA MRI is the first software that offers an easy, intuitive interface with an integrated workflow guiding the user step-by-step. MRI data import is easily performed with an automated DICOM reader. MRI data are transformed into Talairach space after only few quick and easy work steps.
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