Angelo Garifoli

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The present study was undertaken to analyze the effects on unitary activity of inferior olive (IO) neurons elicited by activation of cerebellar lateral nucleus (LN), in rats submitted to the chronic destruction of MDJ structures, i.e. in animals in which the LN-evoked effects in IO should be depended only on activation of GABAergic cells of LN. It has been(More)
We examined the role of main and external cuneate nuclei neurons in processing sensory information during forelimb passive movement. We recorded activity of neurons using circular and figure-eight trajectories, at different speeds, in anaesthetized rats. A multivariate regression analysis was performed to correlate neural discharge to movement direction and(More)
Some neurons of main and external cuneate nuclei are immunoreactive for nitric oxide (NO) synthase, suggesting a role for endogenous NO in the early stages of somatosensory processing. We tested this hypothesis by investigating the possibility that NO modulates cuneate discharge. We observed that both spontaneous and N-methyl-D-aspartate-evoked activities(More)
The present study was carried out to analyze the topography of bilateral spinal projections to the lateral reticular nucleus (LRN). We used retrograde transport of fluorescent tracers Fast Blue and Diamidino Yellow to identify spinal neurons projecting to the ipsilateral and/or contralateral LRN, as well as orthograde transport of Phaseolus vulgaris(More)
The interpositus nucleus (IN) receives a large amount of sensory information from the limbs and, in turn, elaborates signals for movement control. In this paper, we tried to gather evidence on the possibility that neurons in the IN may elaborate sensory representations of the forelimb kinematics and, particularly, of the movement velocity vector. For this(More)
Nitric oxide (NO) synthase (NOS) has been observed in the Cuneate Nuclei (CN), suggesting a role for NO in the modulation of their neurons' activity. The present study was undertaken to evaluate whether passive movement of forelimb as well as electric stimulation of medial nerve modulate the expression of neuronal isoform of NOS (nNOS) within CN. The(More)
By using retrograde double-labeling techniques, we analyzed the topography of projections from the lateral reticular nucleus (LRN) to the anterior and posterior lobes of the cerebellum, with the aim to investigate whether LRN projections to the two lobes come from different neurons or from branching axons of the same cells. We observed that about 4/5 of(More)
The relationship between the spatial location of limb and the activity of cerebellar neurons has received little attention and its nature still remains ambiguous. To address this question we studied the activity of Purkinje and nucleus interpositus cells in relation to the spatial location of rat forelimb. A computer-controlled robot arm displaced the limb(More)
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