MoTrak Head Motion Tracking System

Equipment Location

SLEIC 3T MRI Facility

Chandlee Laboratory
University Park, PA 16802
United States



  • Determine the position of the head in space relative to the transmitter.
  • Record angular rotations as well as positional displacements from an initially calibrated position.
  • Monitor how much the participant moves while the scan is in progress.


  • Head mounting straps
  • Power supply (100-240V)
  • Linear feedback of X,Y,Z movement and rotational feedback on X,Y,Z axis (Pitch, Roll, Yaw coordinate).
  • User defined thresholds for motion detection.
  • Graphic output of participant motion.
  • Auditory feedback to the participant when the threshold of movement limit has been reached.
  • Visual feedback of head motion for the participant via a user display.
  • Movie playback for participant with head motion contingent pause feature.


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