Handedness and motor symptom asymmetry in Parkinson's disease
نویسندگان
چکیده
منابع مشابه
Handedness and asymmetry of hand representation in human motor cortex.
The cortical representation of five simple hand and finger movements in the human motor cortex was determined in left- and right-handed people with whole-head magnetoencephalography. Different movements were found to be represented by spatially segregated dipolar sources in primary motor cortex. The spatial arrangement of neuronal sources for digit and wrist movements was nonsomatotopic and var...
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BACKGROUND AND PURPOSE The most remarkable behavioral asymmetry is handedness. The preferred hand often has better performance, motor strength, nonpreferred hand. However, whether these components are associated with skill learning is not clear. METHODS We evaluated healthy right-handers by setting a series of motor-performance tasks including skill learning, grip strength, and speed. RESUL...
متن کاملManual asymmetry and handedness.
Volumetric measurements show that right-handed individuals have larger right hands than left hands. In contrast, the hands of left-handers are much more nearly symmetrical. Based on what is known about trophic interactions between neurons and targets, these findings predict a corresponding asymmetry of the relevant parts of the sensorimotor system in right-handers. The lack of an opposite-hand ...
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Background and Objective: Parkinson's disease (PD) is an age-related neurodegenerative disease with selective damage of dopaminergic neurons of the mesencephalon. L-dihydroxyphenylamine (L-DOPA) therapy is currently the gold standard maneuver for PD. Due to the protective, anti-inflammatory, and antioxidant effect of sesamin, this study was undertaken to assess dose-dependent effect of this age...
متن کاملPrimary motor cortex asymmetry is correlated with handedness in capuchin monkeys (Cebus apella).
Humans exhibit a population-wide tendency toward right-handedness, and structural asymmetries of the primary motor cortex are associated with hand preference. Reported are similar asymmetries correlated with hand preference in a New World monkey (Cebus apella) that does not display population-level handedness. Asymmetry of central sulcus depth is significantly different between left-handed and ...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 2010
ISSN: 0022-3050
DOI: 10.1136/jnnp.2010.209783