Search results for "Neurologi"
showing 10 items of 1189 documents
Parkinsonian Patients with Deficits in the Dysexecutive Spectrum are Impaired on Theory of Mind Tasks
2013
Understanding the mental states of others entails a number of cognitive processes known as Theory of Mind (ToM). A relationship between ToM deficits and executive disorders has been hypothesized in individuals with Parkinson's disease (PD). The present study was aimed at investigating the effect of dysexecutive deficits on ToM abilities in PD patients without dementia. Participants included 30 PD patients and 30 healthy subjects (HC). PD patients were divided into two groups according to their executive test performance: patients with poor (dysexecutive group; n = 15) and normal (executively unimpaired group; n = 15) performance. All participants were administered faux pas recognition writt…
Sensitivity of a sensory process to short time delays: A study in pattern induced flicker colors (PIFCs)
1978
Pattern induced flicker colors (PIFCs) were generated by means of a modified version of Benham's top, the stimulus pattern of which could be varied continuously during stimulation by the human subjects. The sensitivity of the color sensation to small phase shifts between the periodic stimuli on neighboring retinal areas was recorded under several conditions of stimulus parameters. A mathematical model was developed to describe the influence of the stimulus parameters on the recorded sensory effect. Concerning the underlying neurophysiological processes, a hypothesis is advanced according to which the phase sensitive lateral interaction within the retina changes the spatial excitation distri…
Images perceived after chromatic or achromatic contrast sensitivity losses.
2010
Purpose. We simulate how subjects with losses in chromatic and achromatic contrast sensitivity perceive colored images by using the spatiochromatic corresponding pair algorithm. Methods. This is a generalized version of the algorithm by Capilla et al. (J Opt Soc Am (A) 2004;21:176 –186) for simulating color perception of color deviant subjects, which incorporates a simple spatial vision model, consisting of a linear filtering stage, with a band-pass achromatic filter and two low-pass chromatic ones, for the red-green and blue-yellow mechanisms. These filters, except for the global scaling, are the subject’s contrast sensitivity functions measured along the cardinal directions of the color s…
Visual hallucinations and agitation in Alzheimer's Disease due to memantine: report of three cases
2007
Memantine, a non-competitive N-methyl-D-aspartate (NMDA) receptor antagonist, is currently the only drug proposed for the treatment of moderate to severe Alzheimer’s disease.1 It has been shown to have neuroprotective effects by inhibiting the excitotoxic effect of NMDA glutamate receptors.2 Memantine has a tolerability profile similar to placebo.1 However, the worsening of psychotic symptoms in patients with Lewy body dementia (LBD) treated with memantine has been recently reported.3 We describe three patients with probable Alzheimer’s disease who developed worsening or de novo visual hallucinations and agitation after memantine treatment. Patient 1 was a 65-year-old woman with a 2-year hi…
Erythematous maculopapular eruption due to rivastigmine therapy
2001
Festschrift zum 25jährigen Jubiläum des Direktors Dr. med. Th. Tiling
1909
Inhalt: Zur Geschichte der Anstalt Rothenberg unter dem Directorat des Dr. Th. Tiling 1884-1909 / von Dr. P. Baron Lieven. Medicinisch-statistischer Bericht über die Anstalt Rothenberg in den Jahren 1897-1908 / von Dr. Ernst Hollander. Die Anwendung gefässerweiternder Mittel bei den Schmerzen der Manisch-Depressiven / von Dr. Julius Schroeder. Ein Beitrag zur Frage der Combination von Psychosen und Morbus Basedowii / von Dr. Julius Schroeder.
VARIABILI GENETICHE, BIOLOGICHE E CLINICHE COME FATTORI PROGNOSTICI DI PROGRESSIONE E SOPRAVVIVENZA NELLA SCLEROSI LATERALE AMIOTROFICA
2014
Questo studio ha riguardato l'analisi di alcune variabili prognostiche e di sopravvivenza nella sclerosi laterale amiotrofica, con particolare riferimento alla caratterizzazione di nuovi geni ed al ruolo di interventi di management.
STUDIO ELETTROFISIOLOGICO DEL SISTEMA NERVOSO SENSITIVO NEI PAZIENTI AFFETTI DA SCLEROSI LATERALE AMIOTROFICA
2012
Protective, antioxidant and antiproliferative activity of grapefruit integropectin on sh-sy5y cells
2021
Tested in vitro on SH-SY5Y neuroblastoma cells, grapefruit IntegroPectin is a powerful protective, antioxidant and antiproliferative agent. The strong antioxidant properties of this new citrus pectin, and its ability to preserve mitochondrial membrane potential and morphology, severely impaired in neurodegenerative disorders, make it an attractive therapeutic and preventive agent for the treatment of oxidative stress-associated brain disorders. Similarly, the ability of this pectic polymer rich in RG-I regions, as well as in naringin, linalool, linalool oxide and limonene adsorbed at the outer surface, to inhibit cell proliferation or even kill, at high doses, neoplastic cells may have open…