Saccadic eye movements were studied in six subjects during two Space Shuttle missions. Reaction time, peak velocity and accuracy of horizontal, visually-guided saccades were examined preflight, inflight and postflight. Conventional electro-oculography was used to record eye position, with the subjects responding to pseudo-randomly illuminated targets at 0 deg and + or - 10 deg and 20 deg visual angles. In all subjects, preflight measurements were within normal limits. Reaction time was significantly increased inflight, while peak velocity was significantly decreased. A tendency toward a greater proportion of hypometric saccades inflight was also noted. Possible explanations for these changes and possible correlations with space motion sickness are discussed.


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    Titel :

    Saccadic eye movement during spaceflight


    Beteiligte:
    Uri, John J. (Autor:in) / Linder, Barry J. (Autor:in) / Moore, Thomas P. (Autor:in) / Pool, Sam L. (Autor:in) / Thornton, William E. (Autor:in)

    Erscheinungsdatum :

    1989-04-01


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Saccadic Eye Movement during Spaceflight

    J. J. Uri / B. J. Linder / T. P. Moore et al. | NTIS | 1989


    Saccadic suppression.

    Richards, W. | NTRS | 1969


    Vision during voluntary saccadic eye movements

    Volkmann, F.C. | Engineering Index Backfile | 1962


    Head and Trunk Movement Control During Locomotion After Long-Duration Spaceflight

    Bloomberg, Jacob J. / Paige, Gary D. / Mulavara, A. P. et al. | NTRS | 1999


    Human Performance During Spaceflight

    Manzey, D. / Lorenz, B. | British Library Conference Proceedings | 1997