Vestibulo-ocular function during co-ordinated head and eye movements to acquire visual targets

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    Abstract

    Experiments have been conducted on human subjects in an attempt to establish the role of the vestibulo-ocular reflex in the co-ordination of head and eye movements during visual target acquisition. When the subject moved head and eyes to acquire visual targets in the horizontal plane, the eye movement consisted of an initial saccade in the direction of head movement followed by a slower return towards orbital center which compensated for remaining head movement. When the head was moved either voluntarily or passively in the dark the pattern of eye movement was very similar to that seen during target acquisition. The mean latency between the start of head acceleration and the onset of the saccadic eye movement was greater in the dark (108 msec, S.D. 85 msec) than for the visually induced responses (14 msec, S.D. 59 msec), in which eye movement often preceded head movement when moving to small (
    Original languageEnglish
    Pages (from-to)127-147
    Number of pages20
    JournalJournal of Physiology
    Volume287
    Publication statusPublished - 1979

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