Transmitter-controlled properties of α-motoneurones causing long-lasting motor discharge to brief excitatory inputs
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2012, Journal of Electromyography and KinesiologyCitation Excerpt :In addition, α-motoneurons are bi-stable and can sustain plateau potentials. Brief periods of excitation can switch them into a period of self-sustained firing (Hounsgaard et al., 1986). Such a state appears to have consequences for the normal production of muscle force (Collins et al., 2002).
The α-motoneuron pool as transmitter of rhythmicities in cortical motor drive
2010, Clinical NeurophysiologyResponse of lumbar paraspinal muscles spindles is greater to spinal manipulative loading compared with slower loading under length control
2007, Spine JournalCitation Excerpt :α-Motoneurons are bistable and can sustain plateau potentials. Brief periods of excitation can switch them into a period of self-sustained firing [59] with apparent consequences for the normal production of muscle force [60]. Similarly, high-frequency stimulation of smaller diameter A-δ and C-fibers also affects spinal synaptic transmission.
Proprioception and myoclonus
2006, Neurophysiologie CliniqueCitation Excerpt :Motoneurons show complex properties under neuromodulatory influences that can affect their responses to given synaptic inputs. The existence of monoamine-dependent motoneuron plateau potentials has been clearly established in reduced animal preparations [25,14,26]. The resulting long-lasting depolarizing potentials cause self-sustained firing that outlasts the duration of the excitation, and amplifies the motoneuronal response to Ia-synaptic inputs [5,31].
Switching-on and -off of bistable spontaneous discharges in rat spinal deep dorsal horn neurons
2006, Neuroscience Letters