منابع مشابه
Prosody and levodopa in Parkinson's disease.
OBJECTIVE Research is scarce regarding the use of prosodic parameters in the expression of attitudes in Parkinson's disease (PD). The purpose of this study was to evaluate the parameters used in prosodic expression of attitudes in individuals with idiopathic PD and the effect of levodopa on these parameters. METHOD We studied the use of levodopa in 10 individuals with idiopathic PD during the...
متن کاملLevodopa versus non-levodopa brain language fMRI in Parkinson's disease.
OBJECTIVE To identify the effect of levodopa in language areas in Parkinson's disease patients. METHODS We evaluated 50 patients with mild to moderate Parkinson's disease, age and gender paired to 47 healthy volunteers. We selected two homogeneous groups of 18 patients taking levodopa and 7 no levodopa patients. The functional magnetic resonance imaging verbal fluency task, with low and high ...
متن کاملAutomatic, unsupervised classification of dyskinesia in patients with Parkinsons Disease
One of the characteristic symptoms of patients with Parkinson Disease (PD) is a rigidity of movement. These symptoms disappear after administration of Levodopa. However, the long-term use of levodopa causes involuntary movements (dyskinesia). A proper diagnosis requires an automatic, unsupervised method for the detection and classification of levodopa induced dyskinesia. The main problem, howev...
متن کاملParkinsons Disease Classification using Neural Network and Feature Selection
In this study, the Multi-Layer Perceptron (MLP)with Back-Propagation learning algorithm are used to classify to effective diagnosis Parkinsons disease(PD).It’s a challenging problem for medical community.Typically characterized by tremor, PD occurs due to the loss of dopamine in the brains thalamic region that results in involuntary or oscillatory movement in the body. A feature selection algor...
متن کاملDissimilar mechanistic background of peripheral and orofacial hyperkinesia in patients with Parkinson’s disease and levodopa-induced dyskinesia
Introduction: Long-term levodopa treatment of Parkinson’s disease (PD) is frequently complicated by spontaneously occurring involuntary muscle movements called dyskinesia. The exact pathological mechanism of this complication has not yet been elucidated. We have previously demonstrated that in PD patients the vulnerability to develop peripheral but not orofacial dyskinesia is associated w...
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ژورنال
عنوان ژورنال: Arquivos de Neuro-Psiquiatria
سال: 2013
ISSN: 0004-282X
DOI: 10.1590/0004-282x20130141