SimNIBS 4 is a free and open source software package for the Simulation of Non-invasive Brain Stimulation. It allows for realistic calculations of the electric field induced by transcranial magnetic stimulation (TMS) and transcranial electric stimulation (TES).
A SimNIBS workflow consists of three main parts:
When you publish results based on SimNIBS, please cite Thielscher, A., Antunes, A. and Saturnino, G.B. (2015), Field modeling for transcranial magnetic stimulation: a useful tool to understand the physiological effects of TMS? IEEE EMBS 2015, Milano, Italy
Please see our publications for details about the SimNIBS modules.
SimNIBS is a research tool. Clinical usage is not supported or advised. In particular, SimNIBS was not tested to give accurate results in the presence of pathological condition
Version 4.0.0 is a major update that introduces our new head modeling approach charm. In contrast to the previous methods, charm does not have any external dependencies (matlab, freesurfer) and is ready-to-run directly after installation. Head models created by charm are more accurate for non-brain tissues and include additional tissue types such as large blood vessels and spongy bone.
Charm replaces the previous methods mri2mesh and headreco which are discontinued. Use the tool convert_3_to_4 to convert old head models for use in SimNIBS4 simulations.
Further major new features are the inclusion of many new TMS coil models and a flexible meshing approach to simplify manual editing and inclusion of custom tissue types in the head mesh. Basic I/O functions for neuronavigation data are now also available in python.
Please see details in the changelog.