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. Author manuscript; available in PMC: 2009 Oct 1.
Published in final edited form as: Am J Obstet Gynecol. 2008 Oct;199(4):417.e1–417.e9. doi: 10.1016/j.ajog.2008.07.003

Figure 1.

Figure 1

Example of vertical head motion performed during the Vestibular Autorotation Test (VAT). The recording device is placed on the subject’s head, and she is instructed to keep her eyes fixated on a wall target while moving her head up and down to a metronome cue.