Stefano Sapienza

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The organization of somatosensory input and the input-output relationships in regions of the agranular frontal cortex (AGr) and granular parietal cortex (Gr) were examined in the chronic awake guinea pig, using the combined technique of single-unit recording and intracortical microstimulation (ICMS). AGr, which was cytoarchitectonically subdivided into(More)
The development of wearable sensors has opened the door for long-term assessment of movement disorders. However, there is still a need for developing methods suitable to monitor motor symptoms in and outside the clinic. The purpose of this paper was to investigate deep learning as a method for this monitoring. Deep learning recently broke records in speech(More)
Cortical foci in which stimulation produced movement in either the forelimb or hindlimb were isolated in rats. In each experiment, two foci were selected: one for movement in the forelimb, and the other in the hindlimb. Stimulation was subsequently reduced in order to avoid eliciting a movement, and the effects of this stimulation on activity of gracile and(More)
The aim of this study was to evaluate whether endogenous opioids are involved in the regulation of breathing pattern and respiratory drive during bronchoconstriction induced by methacholine (MCh). We studied six male asymptomatic asthmatics 18 to 35 yr of age. In a preliminary study we determined the concentration of MCh causing a 60% fall in FEV1 (PC60(More)
The retrograde transport of a tracer has been combined with peroxidase immunocytochemistry to verify whether corticostriatal (CS) neurons contain in their cell bodies high levels of glutamate (Glu) and aspartate (Asp). Injections of WGAapoHRP-Au in the caudate/putamen of adult rats produced retrograde labeling of a large number of layer V neurons of wide(More)
We studied the acute effects of interleukin-2 (IL-2), the principal lymphokine responsible for lymphocyte proliferation, on lung mechanics and airway responsiveness to methacholine (MCh) in rats. Lewis (n = 12) and Fisher 344 (n = 13) rats were anesthetized and intubated, and intravenous and intra-arterial lines were inserted. IL-2 (750,000 U/kg) was(More)
The purpose of this study was to quantitate the structural changes in the airways of sensitized rats after repeated challenge with aerosolized antigen and to examine the relationship between these changes and alterations in responsiveness to methacholine (MCh). We studied 28 Brown Norway rats that were actively sensitized to ovalbumin (OA). Responsiveness(More)
To evaluate the hypothesis that lymphocyte stimulation can modify the bronchoconstrictive response to inhalational challenge with an allergen, we administered interleukin-2 (IL-2), an important lymphokine in lymphocyte activation and proliferation, to actively sensitized rats. Brown Norway rats received either human recombinant IL-2 (n = 8) or its vehicle(More)