File:The-Video-Head-Impulse-Test-(vHIT)-Detects-Vertical-Semicircular-Canal-Dysfunction-pone.0061488.s004.ogv

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The-Video-Head-Impulse-Test-(vHIT)-Detects-Vertical-Semicircular-Canal-Dysfunction-pone.0061488.s004.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 50 s, 480 × 272 pixels, 395 kbps overall, file size: 5.18 MB)

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English: Modified head impulse procedure for vertical semicircular canals. Illustration of the head impulse examination procedure for individual semicircular canals in a patient with left unilateral vestibular deafferentation (lUVD). (A) Lateral (horizontal) head impulses. (B) Modified head impulses in the right anterior – left posterior (RALP) plane. (C) Modified head impulses in the left anterior – right posterior (LARP) plane. Note that for the modified vertical head impulses gaze is directed along the plane of head rotation to elicit vertical (instead of torsional) eye movements. Red: canal activation. Blue: canal inhibition. Green: canal dysfunction. Overt saccades that compensate for deficient canal function are indicated with click sounds. The movie has been created with the free iPhone or iPad app ‘aVOR’ developed by the first author [19].
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Source Video S1 from MacDougall H, McGarvie L, Halmagyi G, Curthoys I, Weber K (2013). "The Video Head Impulse Test (vHIT) Detects Vertical Semicircular Canal Dysfunction". PLOS ONE. DOI:10.1371/journal.pone.0061488. PMID 23630593. PMC: 3632590.
Author MacDougall H, McGarvie L, Halmagyi G, Curthoys I, Weber K
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Date/TimeThumbnailDimensionsUserComment
current03:06, 3 May 20131 min 50 s, 480 × 272 (5.18 MB)Open Access Media Importer Bot (talk | contribs)Automatically uploaded media file from Open Access source. Please report problems or suggestions here.

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Format Bitrate Download Status Encode time
VP9 240P 169 kbps Completed 23:04, 21 October 2018 50 s
WebM 360P 492 kbps Completed 16:01, 2 December 2023 17 s
QuickTime 144p (MJPEG) Not ready Unknown status

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