Point analysis
Point analysis evaluates the FEM solution at selected locations after the volume conductor problem has been solved. This is the bridge between the raw field solution and downstream analyses such as VTA-like thresholding or pathway-based activation studies.
Available point models
OSS-DBSv2 includes multiple ways to sample the field:
Latticefor regular point grids around the electrodeVoxelLatticefor image-like outputs aligned with voxel spacePathwayfor points that lie on fiber trajectories or axon pathways
These models are especially important when the primary output is not just the potential field itself, but a derived spatial analysis.
Typical use cases
estimate VTA-like regions from electric field thresholds
export pointwise potentials or field magnitudes for post-processing
evaluate pathway trajectories for later axon activation modeling
Practical guidance
Disable point models during the very first setup run if you want to validate the core FEM workflow first.
Enable lattices when exploring field spread around the electrode.
Enable pathway models when tract data and axon activation workflows are part of the study design.