Previous studies established that vestibular reflexes can have two adapted states (e.g., gains) simultaneously, and that a context cue (e.g., vertical eye position) can switch between the two states. Our earlier work demonstrated this phenomenon of context-specific adaptation for saccadic eye movements: we asked for gain decrease in one context state and gain increase in another context state, and then determined if a change in the context state would invoke switching between the adapted states. Horizontal and vertical eye position and head orientation could serve, to varying degrees, as cues for switching between two different saccade gains. In the present study, we asked whether gravity magnitude could serve as a context cue: saccade adaptation was performed during parabolic flight, which provides alternating levels of gravitoinertial force (0 g and 1.8 g). Results were less robust than those from ground experiments, but established that different saccade magnitudes could be associated with different gravity levels.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Context-specific adaptation of saccade gain in parabolic flight


    Contributors:


    Publication date :

    2002-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Parabolic Flight

    Petersen, Johan C. G. / Hargens, Alan R. / Petersen, Lonnie G. | Springer Verlag | 2021


    Driving Saccade to Pursuit using Image Motion

    Murray, D. W. / Bradshaw, K. J. / McLauchlan, P. F. et al. | British Library Online Contents | 1995


    Design and robustness analysis of gain-scheduled control system for parabolic flight

    Amato, F. / Ambrosino, G. / Mattei, M. et al. | AIAA | 1996


    Parabolic Flight Short

    Christopher Bermudez / Lucie Poulet / Christina Marie Johnson et al. | NTRS | 2022