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.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Saccadic Eye Movement during Spaceflight


    Beteiligte:
    J. J. Uri (Autor:in) / B. J. Linder (Autor:in) / T. P. Moore (Autor:in) / S. L. Pool (Autor:in) / W. E. Thornton (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    13 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Saccadic eye movement during spaceflight

    Uri, John J. / Linder, Barry J. / Moore, Thomas P. et al. | NTRS | 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


    Emotional Stress during Spaceflight

    L. Khachaturyants / L. Grimak | NTIS | 1973