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  • Title: The inhibitory feedback pathway from the forelimb to C3-C4 propriospinal neurones investigated with natural stimulation.
    Author: Alstermark B, Johannisson T, Lundberg A.
    Journal: Neurosci Res; 1986 Jul; 3(5):451-6. PubMed ID: 3018641.
    Abstract:
    Light mechanical stimulation of the skin and passive joint movements in the forelimb gave effective activation of interneurones located medially in the C3-C4 segments. Such interneurones may be inhibitory to C3-C4 propriospinal neurones (PNs) and recording from PNs revealed that the stimuli which activated the interneurones evoked inhibition in the PNs. It is postulated that a movement commanded via the C3-C4 PNs evoke impulses in forelimb afferents which by negative feedback control transmission in the C3-C4 PNs and thus govern the execution of the movements.
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