AbstractIt gets into difficult to explain the mechanism of caloric nystagmus only by convection theory from results of microgravity experiments. One of the other theories is an occurrence of a relative volume change due to a temperature change. Since the volume change must lead to a pressure change after caloric stimulation, we tried to measure the ampulla pressure of the horizontal semicircular canal in pigeons (Columba livia) using an improved servo micropipette system. The main result was that the ampulla pressure increased by cooling and decreased by heating. The changes of the ampulla pressure depended on the temperature change but were not influenced by the pigeon's head position.


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    Title :

    Changes of endolymphatic pressure in the semicircular canal of pigeon by caloric stimulation


    Contributors:
    Wada, Y. (author) / Suzuki, H. (author) / Watanabe, S. (author)

    Published in:

    Advances in Space Research ; 14 , 8 ; 385-388


    Publication date :

    1994-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Changes of Endolymphatic Pressure in the Semicircular Canal of Pigeon by Caloric Stimulation

    Wada, Y. / Suzuki, H. / Watanabe, S. et al. | British Library Conference Proceedings | 1994



    Changes of ampulla pressure in the semicircular canal of pigeons by caloric stimulation

    Wada, Y. / Suzuki, H. / Watanabe, S. et al. | British Library Conference Proceedings | 1994