56 research outputs found
"Postural strategies assessed with inertial sensors in healthy and Parkinson subjects" by C. Baston et al. [Gait Posture 40 (2014) 70-75]: Really a new method to analyze postural strategy?
No full textWe read with great interest the article by Baston et al. [1]
published in Gait & Posture entitled ‘‘Postural strategies assessed
with inertial sensors in healthy and Parkinsonian subjects’’. The
article describes a novel instrumental method that records the
movement of inertial sensors positioned on the legs and trunk,
thereby providing analysis of the postural strategy (ankle or hip
strategy) adopted to maintain balance during quiet and perturbed
stance
Cultural landscapes: strategies of infra-scales investigations about a case study in Lazio (Italy)
No full textAEstrazioni: strategie della rappresentazione per l’analisi di paesaggi culturali. Il sistema casale cava a Guidonia Montecelio
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Changes in color vision after a single dose of Vigabatrin or Carbamazepine in healthy volunteers
No full textImpact Factor 1.94
Brainstem Dysfunction in Alternating Hemiplegia of Childhood
No full textsix patients with alternating hemiplegia of childhood (AHC) underwent motor evoked potentials (MEPs), somatosensory evoked potentials (SEPs) and blink reflex recording. no SEP abnormality was found. As for MEP recording, central conduction time did not differ between patients studied during either interictal or ictal phase, and normal subjects, suggesting that the pyramidal system function is spared. In blink reflex recording, the latencies of both the ipsilateral (iR2) and contralateral (cR2) R2 components were significantly longer (P < 0.01) in patients during the interictal phase than in normal subjects. moreover, the iR2 and cR2 areas were significantly reduced (P < 0.01) in patients during the interictal phase, compared with normal subjects. during the ictal phase, the ipsilateral R2 latency was significantly decreased after stimulation of the hemiplegic side, compared with the interictal phase (P < 0.05). The blink reflex abnormalities suggest a brainstem dysfunction, which may be linked to the pathophysiological mechanisms of the disease
Risposte a patterns visivi di righe bianco-nere di differenti frequenze spaziali in pazienti emicranici
No full textMultilevel somatosensory system disinhibition in children with migraine
No full textAlthough migraine is characterised by an abnormal cortical excitability level, whether the central nervous system is hyper- or hypo-excitable in migraine still remains an unsolved problem. The aim of our study was to compare the somatosensory evoked potential (SEP) recovery cycle, a marker of the somatosensory system's excitability, in a group of 15 children suffering from migraine without aura (MO) (mean age 11.7 +/- 1.6 years, five males, 10 females) and 10 control age-matched Subjects (CS) (mean age 10.9 +/- 2.1 years, six males, four females). We calculated the SEP's latency and amplitude modifications after paired electrical stimuli at 5, 20 and 40 ms interstimulus intervals (ISIs), comparing it with a single stimulus condition assumed as the baseline. In MO patients, the amplitudes of the cervical N13 and of the cortical N20, P24 and N30 responses at 20 and 40 ms ISIs showed a higher recovery than in CS (two-way ANOVA, P < 0.05). Since, the SEP recovery cycle depends on the inhibitory interneuron function, our findings suggest that a somatosensory system disinhibition takes place in migraine. This is a generalized phenomenon, not limited to the cerebral cortex, but concerning also the cervical grey matter. The SEP recovery cycle reflects the intracellular concentration of Na+, therefore, the shortened recovery cycle in our MO patients suggests a high level of intracellular Na+ and a consequent depolarized resting membrane potential, possibly due to an impaired Na+-K+ ATPase function in migraine. (c) 2005 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved
Presentation of visual patterns of black and white striped lines of different spatial frequency in migraine patients
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