The majority of labeled neurons had large and spatially extended dendritic trees that spanned several of these dl-pons subnuclei, often with terminal dendrites ending in the ventral spinocerebellar tract. 
Neurons of the dorsal horn (mainly Clarke's column) make up a dorsal spinocerebellar tract and neurons of the ventral horn (mainly spinal border cells) are at the origin of a ventral spinocerebellar tract.
Fibers labeled from unilateral injections into the paramedian lobule were found on the same side in the dorsal part of the lateral funiculus (DLF), corresponding to the dorsal spinocerebellar tract (DSCT), but contralaterally in the ventral part of the lateral funiculus (VLF) and in the ventral funiculus (VF), corresponding to the ventral spinocerebellar tract (VSCT).
Contacts between monoaminergic fibers and electrophysiologically identified neurons of the ventral spinocerebellar tract were investigated in the cat. They also indicate that monoaminergic neurons may modulate activity of neurons of the ventral spinocerebellar tract by direct postsynaptic actions in addition to any effects evoked by means of volume transmission..
ventral spinocerebellar tract neurons located in laminae V-VII of cat lumbar spinal cord were tested for the effects of ionophoretically applied monoamines and receptor selective agonists. These results show that information forwarded by means of the ventral spinocerebellar tract may be modulated by monoamines and that several receptor subtypes, located pre- or postsynaptically, may be involved.
The dominating effect on ventral spinocerebellar tract neurones was a depression (mainly from the pad).
The composition of signals transmitted in the ventral spinocerebellar tract appears to be consistent with that of a wave variable, and computer simulations of the model yield signals similar to those observed in the monkey interpositus nucleus.
Another extension results from the discovery that recurrent inhibition affects not only skeleto-motoneurons, but also gamma-motoneurons, Ia inhibitory interneurons mediating reciprocal inhibition between antagonist motoneurons, other Renshaw cells and cells of origin of the ventral spinocerebellar tract (VSCT).
2) The ventral spinocerebellar tract (VSCT) arising contralaterally from lower thoracic, lumbar, and more caudal segments passes via the ventral funiculus and ascends in the ventrolateral fasciculus.
A thin band of label along the ventral spinocerebellar tract outlined an unlabeled area in the central portion of the lateral parabrachial nucleus.
Labeled fibers from both the spinal cord and the medulla ascended through the ventral lateral pons and coursed with the ventral spinocerebellar tract toward the parabrachial nuclei.
It is concluded that S1 spinocerebellar neurones convey a similar type of information to that of dorsal spinocerebellar tract and ventral spinocerebellar tract neurones but integrate it in a different way..
Estimates of conduction velocities of the axons ranged from 15-32 m/s (mean 22.8 m/s) and are directly comparable to velocities of presumed ventral spinocerebellar tract neurones recorded in the same animals.
It has been generally accepted that the dorsal spinocerebellar tract ascends in the dorsal half of the lateral funiculus and enters the cerebellum via the inferior cerebellar peduncle, whereas the ventral spinocerebellar tract ascends in the ventral half of it and takes the superior cerebellar peduncle route.
The main characteristics of this pathway are similar to those of the ventral spinocerebellar tract of higher vertebrates; it conveys information from all spinal levels directly to the contralateral cerebellum.
Neurones of origin of the ventral spinocerebellar tract were stained with intracellularly applied horseradish peroxidase to investigate whether they give off any initial axon collaterals.
Analysis of the relations between the rhythmic discharges found in rubrospinal neurons, cerebellar neurons (interpositus nucleus and paravermal Purkinje cells of the cerebellar anterior lobe) and neurons of an ascending pathway (ventral spinocerebellar tract) leads to the conclusion that the rubrospinal tract belongs to an internal loop between spinal and supraspinal centres.
Preliminary results have been obtained for neurons of the ventral spinocerebellar tract (VSCT) recorded during fictive locomotion: (1) their discharge is rhythmically modulated at the periodicity of the locomotor rhythm; (2) their discharge pattern can be complex and variable in relation with the complexity and variability of the pattern of efferent activity in various muscle nerves of the ipsilateral hindlimb; (3) their responses to phasic afferent stimulation of the ipsilateral hindlimb are modulated in parallel with their locomotor-related activity.
They descended dorsomedial to the ventral spinocerebellar tract and gave off collateral branches directed dorsomedially.
The response characteristics of dorsal spinocerebellar tract (DSCT) neurons and ventral spinocerebellar tract (VSCT) neurons to the cutaneous inputs applied to footpads were studied in the cat.
Histologically besides the degeneration of the peripheral proprioceptive neurone and of the ventral spinocerebellar tract, several other systems proved affected.
These sites--cochlear nuclei, ventral spinocerebellar tract and resciform body which includes dorsal spinocerebellar tract--are located outside the known locomotor regions.
Rhythmical modulation of PCs in immobilized cats is determined by signals coming from the central spinal mechanism of scratching via the ventral spinocerebellar tract (VSCT) and the spinoreticulocerebellar pathway (SRCP).
Rhythmical modulation of cerebellar neurons during fictitious scratching is determined by signals coming from the central spinal mechanism, generating rhythmical oscillations, via the ventral spinocerebellar tract (VSCT) and the spinoreticulocerebellar pathway (SRCP).
Rhythmical modulation of fastigial neurons is determined by signals coming from the central spinal mechanism, generating rhythmical oscillations, via the ventral spinocerebellar tract (VSCT) and the spinoreticulo-cerebellar pathway (SRCP).
(5) Transection of the ventral spinocerebellar tract (VSCT) resulted in considerable reduction of rhythmical modulation of VS neurons during fictitious scratching, while transection of the spino-reticulocerebellar pathway (SRCP) resulted in just a small decrease of modulation.
(5) Transection of the ventral spinocerebellar tract (VSCT) resulted in considerable reduction or complete cessation of rhythmical modulation in RS neurons during fictitious scratching.
(1) The activity of neurons of the ventral spinocerebellar tract (VSCT) during scratching was studied in thalamic and decapitate cats.
In this respect the SRCP differs from the ventral spinocerebellar tract (VSCT) which is maximally active in the flexor phase of the cycle.
Changes in the delayed depolarization (DD) following composite (IS-SD) intracellular spikes in motoneurones and neurones of the ventral spinocerebellar tract were recorded in a variety of experimental conditions.
Stimulation of the contralateral red nucleus evoked monosynaptic EPSPs in 14 of 82 ventral spinocerebellar tract neurones.
Effects from the vestibulospinal tract (VST) and from fibres descending in the medial longitudinal fascicle (MLF) on the cells of origin of the ventral spinocerebellar tract (VSCT) have been studied with intracellular recording.
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