BESA Simulator


BESA Simulator

BESA Simulator is a free program written by Patrick Berg for the simulation of EEG or MEG activity generated by model sources. The purpose of this tool is to provide a better understanding of dipole modeling and the link of brain sources with surface EEG and MEG data.

With BESA Simulator you can:

  • Simulate both EEG and MEG data
  • See maps resulting from a dipole anywhere within the head
  • Add any number of dipoles to a model
  • Generate independent waveforms of each dipole (source waveform). You can also read in source waveforms from an ASCII file (BESA swf)
  • See the surface data resulting from the model, as reference-free, average reference, Laplacian (CSD) reference, or using any electrode/sensor as reference. Linked electrode pairs can also be defined as reference
  • Place a cursor anywhere in the time interval and visualize the scalp activity at that time point
  • Specify the parameters of the spherical head model
  • Add coherent noise to the data defined in terms of rms level and level of alpha activity
  • Learn about filters by displaying the effects of applying various types of filter to your simulated data
  • Use any electrode or MEG sensor configuration. MEG configurations from 4-D, CTF, and Neuromag systems are supplied as examples.
  • Save and read the models you have generated. In addition to the internal model format (*.mod). read BESA bsa and par models.
  • Save the generated data in BESA avr (ASCII) format
  • Simulated raw data can be saved in BESA Simple Binary (Generic) format.
  • Simulate activity using individual head models (FEM) generated by BESA MRI

The BESA Simulator supersedes the previous Dipole Simulator software. Apart from a new look and multi platform capabilities the BESA Simulator offers new functionality like simulating activity also in individual head models (FEM). For further information and a free download please click here!