Cartool is mainly an EEG, ERP and inverse solutions tool, with some fast and powerful 3D display capabilities, plus other goodies inside it. Briefly, it can:

• Interactively browse all sorts of EEG files:
  

• Context-sensitively display EEGs:
  

• Compute ERPs in a semi-automatic, user-controlled way:

• Display potential maps & depth electrodes voltage:

• Segment ERPs in periods of stability (aka micro-states):
  

• Work with MRIs:
  

• Display inverse solutions, both in 2D and in 3D:
  

• Do some frequency analysis:

• Do some statistics: