Brainsight 2.5.4 is released for all users

We are happy to announce the release of Brainsight 2.5.4.

Before proceeding with this update, please read the following important information.

Minimum requirements:

  • macOS 10.13 High Sierra is now the minimum requirement, increased from macOS 10.11 El Capitan in Brainsight 2.4. For a free update, visit <>. Contact us if you need to upgrade your Mac hardware.
  • This version of Brainsight was tested against macOS 10.13.6 (High Sierra), 10.14.6 (Mojave), 10.15.7 (Catalina), 11.7.10 (Big Sur), 12.7.5 (Monterey), 13.6.7 (Ventura), and 14.5 (Sonoma).
  • Mac OS X 10.12 (Sierra) and earlier are unsupported.

Changes since version 2.5.3:

  • Moved some user interface controls from the bottom to the top of the window, namely the 3D Crosshairs and Driver popup buttons. This gives more vertical space for images and makes the contents of the popup menu less likely to overflow.
  • Added a new option in the Trigger Options window to allow creating samples even when the relevant Polaris tools are not visible (by default samples cannot be created when, for example, the coil tracker is not visible.)
  • Now default to looking for SimNIBS 4.1 (newest at time of writing), instead of 4.0. If you have an older (or newer) version, adjust the path in Brainsight > Settings.
  • Added a fourth set of tool-relative Vet Robot movement controls that only have buttons to inject and retract the tool. The controls that allow the more dangerous tool-relative rotations are now separated in a different pane.
  • No longer allow Vet Robot to move to a marker-type target, only to trajectory-type targets. This is a safety precaution because, although markers technically have an orientation, it’s not displayed, and so the robot risks moving in an unexpected direction.
  • Fixed a bug where Vet Robot subject registration would fail if the skull reconstruction was not watertight and consisted of several disjoint pieces and one of the initial registration landmarks was touching a secondary piece.
  • For Vet Robot sessions, the default threshold range in the Validation step was tightened from 0.5 to 0.3 mm, reflecting recent improvements in system accuracy.
  • Made various improvements for Axilum Robot / Cobot support:
    • An error message is now shown if the Cobot is not in MCP (manual control panel) mode.
    • Added functionality to switch Cobot sides.
    • The force sensor check procedure must now be redone if the coil is changed, or if two hours has elapsed.
    • Coil names are now partly anonymized, to no longer reveal if a sham coil is being used (to help with blind studies).
    • Extended the range of the contact sensor sensitivity.
  • The Polaris Lyra is now configured to track at 30 Hz instead of 20 Hz.
  • Fixed a bug where a bumps to a Polaris were not reported.
  • Fixed a bug that could result in a failure to read some valid NIfTI files, for example those generated by BabelBrain.
  • Fixed a bug where vector field arrows (for TMS simulation for example) sometimes did not display when then should have.
  • Fixed a bug where 4D datasets with exactly 4 time components would be interpreted and drawn as vector fields.
  • Added a new fUS transducer option for 3D Crosshairs shape.
  • Added a new button next to the scene selection popup menu to quickly customize a view.
  • A TMS coil is no longer shown in bullseye views when the selected tool calibration is fUS-type.
  • Creating a surface/skin reconstruction is now about 25% faster.
  • Creating a curvilinear reconstruction is now about 35% faster.
  • Fixed various crashes that could occur opening corrupt files.
  • Fixed miscellaneous bugs.


  • Brainsight 2.5.4 can be downloaded from our website here: <>
  • You might also need to download the latest “Support Files Human” and/or “Support Files Vet” if you have an older version. Brainsight will warn at launch if that’s the case.
  • You’ll need your serial number, which you can get from Brainsight itself from the Brainsight menu > ‘Enter/View Serial Number’.


  • Please report any and all bugs, feedback, suggestions, etc. to <> or by phone at +1-866-984-3888 (Canada & USA) or +1-514-284-3888.

Thank you,

The Rogue Research Team