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  • Title: [The effect of stimulation of the substantia nigra on low- and high-threshold startle reflexes in the cat].
    Author: Gokin AP, Karpukhina MV, Limanskiĭ IuP.
    Journal: Neirofiziologiia; 1989; 21(5):704-7. PubMed ID: 2601770.
    Abstract:
    Effects of the substantia nigra (pars compacta) stimulation on two functional types of startle reflexes were studied in chloralose-anesthetized cats. The reflexes were the low-threshold ones evoked by tactile stimuli (T-reflex) and high-threshold ones evoked by intense peripheral nerve stimulation (spino-bulbo-spinal, SBS reflex). It was found that substantia nigra stimulation exerted mainly inhibitory influences on both types of reflexes. However the depression of the SBS-reflex was always more profound and long lasting (up to 8 min) than that of T-reflex. The latter reflex was sometimes facilitated.
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