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Changes of vertical eye movements of goldfish for different otolith stimulation by linear acceleration.

Changes of vertical eye movements of goldfish for different otolith stimulation by linear acceleration. Research Abstract Details 

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  • Changes of vertical eye movements of goldfish for different otolith stimulation by linear acceleration. Abstract Text:

    a takabayashiA Takabayashi,t ohmura-iwasakiT Ohmura-Iwasaki,s moriS Mori,

    Eye movements serves to hold the gaze steady or to shift the gaze to an object of interest. On Earth, signals from otoliths can be interpreted either as linear motion or as tilt with respect to gravity. In microgravity, static tilt will no longer give rise to changes in otolith activity. However, linear acceleration as well as angular acceleration stimulate the otolith organ. Therefore, during adaptation to microgravity, otolith-mediated response such as eye movements alter. In this study, we analyzed the eye movements of goldfish during linear acceleration. The eye movements during rectangular linear acceleration along the different body axis were video-recorded. The vertical eye rotations were analyzed frame by frame. In normal fish, leftward lateral acceleration induced downward eye rotation in the left eye and upward eye rotation in the right eye. Acceleration from caudal to rostral evoked downward eye rotation in both eyes. When the direction of acceleration was shifted 15 degrees left, the responses in the left eye disappeared. These results suggested that otolith organs in each side were stimulated differently.

    Changes of vertical eye movements of goldfish for different otolith stimulation by linear acceleration. Publishing Authors By Initials

    a takabayashiA Takabayashi,t ohmura-iwasakiT Ohmura-Iwasaki,s moriS Mori,

    For similar abstracts research abstracts see: abstracts research

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    Changes of vertical eye movements of goldfish for different otolith stimulation by linear acceleration. Journal Published:

    PUBLICATION TYPE: Research Support, Non-U.S. Gov

    Journal: Advances in space research : the official journal

    VOLUME: 32

    Page Numbers: 1527-32

    Journal Abbreviation: Adv Space Res

    ISSN: 0273-1177

    DAY: 4

    MONTH: 03

    YEAR: 2003

    Changes of vertical eye movements of goldfish for different otolith stimulation by linear acceleration. Information

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    LANGUAGE: eng

    NlmUniqueID: 9878935

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    AFFILIATION: School of Health Sciences, Fujita Health University, Kutsukake, Toyoake, Japan. takaba@fujita-hu.ac.jp

    Country: United States

    United States Research PublicationUnited States Research Publication

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    MEDLINETA: Adv Space Res

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