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Abstract #2561

Effect of Hand Feedback Visualization on Head Motion During fMRI of Neuropsychological Testing

Mahta Karimpoor 1,2 , Zahra Faraji-Dana 1,2 , and Simon James Graham 1,2

1 Physical Scienses, Sunnybrook Research Institute, Toronto, Ontario, Canada, 2 Medical Biophysics, University of Toronto, Toronto, Ontario, Canada

An fMRI-compatible computerized tablet system has been previously developed in house to be used for complex Neuropsychological testing such as writing. The tablet did not include visual feedback of hand position (VFHP), a human factors component that may be important for fMRI of certain patient populations. Because the user is lying in the magnet bore, they cannot view their hand during this process and must rely on their sense of proprioception. A real-time system was thus developed to provide VFHP and integrated with the tablet in an augmented reality display. Attempting to visualize the hand position during performing such complex motor movements may induce excess subjects head motion. We assessed the influence of VFHP on head motion and the associated brain activity involving a set of handwriting tasks in young healthy adults. ‚Äč

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