How Do We Approach the Locomotor Network in the Mammalian Spinal Cord?a

…, R Brownstone, B Fedirchuk… - Annals of the New …, 1998 - Wiley Online Library
For a large number of vertebrate species it is now indisputable that spinal networks have
the capability of generating the basic locomotor rhythm. However, because of technical …

Synaptic activation of plateaus in hindlimb motoneurons of decerebrate cats

DJ Bennett, H Hultborn, B Fedirchuk… - Journal of …, 1998 - journals.physiology.org
… 1 B and 2 we have drawn, for reference, the firing rate profile that would be predicted if
the plateau (inward currents) had not been initiated (thin lines; extrapolated from the primary …

Evidence suggesting a transcortical pathway from cutaneous foot afferents to tibialis anterior motoneurones in man

J Nielsen, N Petersen, B Fedirchuk - The Journal of physiology, 1997 - Wiley Online Library
1 Stimulation of the superficial peroneal or the sural nerve (3 shocks, 3 ms interval, 1 ms
duration, 2.5 × perception threshold) evoked a reflex activation of the tibialis anterior muscle at a …

Information to cerebellum on spinal motor networks mediated by the dorsal spinocerebellar tract

K Stecina, B Fedirchuk, H Hultborn - The Journal of physiology, 2013 - Wiley Online Library
The main objective of this review is to re‐examine the type of information transmitted by the
dorsal and ventral spinocerebellar tracts (DSCT and VSCT respectively) during rhythmic …

Spinal cholinergic neurons activated during locomotion: localization and electrophysiological characterization

…, BR Noga, PA Carr, B Fedirchuk… - Journal of …, 2000 - journals.physiology.org
The objective of the present study was to determine the location of the cholinergic neurons
activated in the spinal cord of decerebrate cats during fictive locomotion. Locomotion was …

State‐dependent hyperpolarization of voltage threshold enhances motoneurone excitability during fictive locomotion in the cat

S Krawitz, B Fedirchuk, Y Dai, LM Jordan… - The Journal of …, 2001 - Wiley Online Library
1 Experiments were conducted on decerebrate adult cats to examine the effect of brainstem‐evoked
fictive locomotion on the threshold voltage (V th ) at which action potentials were …

Pharmacologically evoked fictive motor patterns in the acutely spinalized marmoset monkey (Callithrix jacchus)

B Fedirchuk, J Nielsen, N Petersen… - Experimental brain …, 1998 - Springer
… peroneal nerves are shown in B and C on an expanded time scale. In B, a section of activity
… between the peroneal and tibial nerves (Brent Fedirchuk, Jens Nielsen, and Hans Hultborn; …

Monoamines increase the excitability of spinal neurones in the neonatal rat by hyperpolarizing the threshold for action potential production

B Fedirchuk, Y Dai - The Journal of physiology, 2004 - Wiley Online Library
… presence of 5-HT, a −44 mV depolarizing step was also able to evoke a rapid inward current
(B), demonstrating a −4 mV hyperpolarization of V th . The time scale in A also applies to B. …

Short-term plasticity in hindlimb motoneurons of decerebrate cats

DJ Bennett, H Hultborn, B Fedirchuk… - Journal of …, 1998 - journals.physiology.org
… 2 B, plateau activated at steep jump in frequency; see arrow in Fig. 3 B), and was followed
by hysteresis (in the frequency- and voltage-current plots; ie, FI and VI plots) and self-…

Depression of group Ia monosynaptic EPSPs in cat hindlimb motoneurones during fictive locomotion

S Gosgnach, J Quevedo, B Fedirchuk… - The Journal of …, 2000 - Wiley Online Library
1 The effects of fictive locomotion on monosynaptic EPSPs recorded in motoneurones and
extracellular field potentials recorded in the ventral horn were examined during brainstem‐…