Blurred vision with head movement is a common symptom reported by patients with vestibular dysfunction affecting the vestibulo-ocular reflex (VOR). Impaired VOR can be measured by comparing visual acuity in which there is no head movement to visual acuity obtained with head movement. A previous study demonstrated that dynamic visual acuity (DVA) testing using vertical head movement revealed def...

Previous studies have provided logical representations and eÆcient recognition algorithms for a simple kind of \minimalist grammars." This paper extends these grammars with head movement (\incorporation") and aÆx hopping. The recognition algorithms are elaborated for these grammars, and logical perspectives are brie y considered. Michaelis (1998) showed how the derivations of a simple kind of m...

This paper presents a methodology for automatically identifying human actions in either the frontal or the lateral view. By tracking the movement of the head of the subject over successive frames of a monocular grayscale image sequence, we recognize 1.2 different actions. The head is segmented automatically an each frame, and the feature vectors extracted. Input sequences captured from a fixed ...

In this article, I address the issue of head movement in current linguistic theory. I propose a new view of the nature of heads and head movement that reveals that head movement is totally compliant with the standardly suggested properties of grammar. To do so, I suggest that head movement is not a single syntactic operation, but a combination of two operations: a syntactic one (movement) and a...

background: the cervical spine is the most vulnerable part of the vertebral column and the rotational movements are the most dangerous movements which may cause damages to cervical spine. a good treatment option for the cervical disc disease is the replacement of a damaged disc with an artificial disc that has shown satisfactory clinical results. methods: the c4 to c6 vertebrae of a normal subj...