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Investigation of head tremor in cervical dystonia: Novel application of virtual reality head mounted display, the oculus rift

I.M. Beiser, B. Quinlivan, E. McGovern, L.J. Williams, S. Narasimham, O. Killian, R. Beck, G. Colvert, S. O'Riordan, J.S. Butler, R.B. Reilly, M. Hutchinson (Dublin, Ireland)

Meeting: 2016 International Congress

Abstract Number: 1626

Keywords: Dystonia: Clinical features, Torticollis, Tremors: Clinical features

Session Information

Date: Thursday, June 23, 2016

Session Title: Dystonia

Session Time: 12:00pm-1:30pm

Location: Exhibit Hall located in Hall B, Level 2

Objective: We aim to characterise tremulous head movements in cervical dystonia during eccentric left- and right-going head rotations.

Background: Cervical dystonia is the most common adult-onset isolated focal dystonia. It is characterized by abnormal posturing of the head. Additionally, 28-68% of patients have abnormal head movements. Several studies demonstrated that voluntary head movements in cervical dystonia are slow, which may be due to frequent pauses during the head turns.

Methods: Cervical dystonia patients were asked to complete a modified Posner task in which head movements towards eccentrically located targets were employed as the response. A virtual reality head mounted display (Oculus Rift DK2) was employed to simultaneously acquire movement data and present visual stimulus. A frequency analysis of the collected rotational data was carried out with the aim of better characterizing these head tremors on a subject-by-subject basis.

Results: Results demonstrate that the Oculus Rift is a useful tool for the analysis of tremor in cervical dystonia. The results reveal that factors such as target angle and target side have a significant effect on tremor severity and suggest that the current paradigm is useful for characterizations of these tremulous head movements and as a measure of tremor severity on a single patient basis.

Conclusions: The Oculus Rift can be employed as an effective tool to quantitatively characterise head tremors. This paradigm and analysis have utility as a diagnostic tool which could become useful in the diagnostic test to determine patient head tremors. * I. B. and B. Q. contributed equally to this work.

To cite this abstract in AMA style:

I.M. Beiser, B. Quinlivan, E. McGovern, L.J. Williams, S. Narasimham, O. Killian, R. Beck, G. Colvert, S. O'Riordan, J.S. Butler, R.B. Reilly, M. Hutchinson. Investigation of head tremor in cervical dystonia: Novel application of virtual reality head mounted display, the oculus rift [abstract]. Mov Disord. 2016; 31 (suppl 2). https://www.mdsabstracts.org/abstract/investigation-of-head-tremor-in-cervical-dystonia-novel-application-of-virtual-reality-head-mounted-display-the-oculus-rift/. Accessed May 14, 2025.
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