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  • Title: Functional characteristics of the input-output correlation in the vestibular nuclear complex of the frog.
    Author: Fanardzhyan VV, Manvelyan LR, Zakaryan VL, Nasoyan AM.
    Journal: Neurosci Behav Physiol; 2000; 30(2):131-7. PubMed ID: 10872722.
    Abstract:
    Experiments on perfused frog brains were used to record focal and intracellular potentials of neurons in the vestibular nuclear complex produced in response to stimulation of the anterior branch of the ipsilateral vestibular nerve and the spinal cord. Stimulation of the vestibular nerve evoked mono- and polysynaptic EPSP with orthodromic action potentials. These were accompanied by recordings of antidromic activation (with a mean latent period of 0.75 sec) of neurons which send their axons into the labyrinth. Antidromic action potentials from vestibular neurons arose with latent periods of the order of 1.43 msec in response to stimulation of the cervical thickening and 2.19 msec in response to stimulation of the lumbar thickening of the spinal cord. Bursts from the spinal cord often evoked EPSP with orthodromic action potentials in vestibular neurons. The characteristics of the functional correlation between the vestibular input and the vestibulospinal system are discussed.
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