Handedness and Asymmetry of Motor Skill Learning in Right-handers
نویسندگان
چکیده
منابع مشابه
Handedness and Asymmetry of Motor Skill Learning in Right-handers
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 کاملSwitching handedness: fMRI study of hand motor control in right-handers, left-handers and converted left-handers.
The purpose of this study was to investigate the differences in the brain organization of motor control in left- and right-handers and to study whether early left-to-right handwriting switch changes the cortical representation of finger movements in the left and right hemispheres. Echo-planar MR imaging was performed in 52 subjects: consistent right-handers (RH), consistent left-handers (LH), a...
متن کاملOpposite turning behavior in right-handers and non-right-handers suggests a link between handedness and cerebral dopamine asymmetries.
The strong right hand preference in humans remains a riddle; no lateralized behavior other than fine finger dexterity relates to it. The relation between handedness and language dominance may be far weaker than currently judged; after all, both right-handers and non-right-handers utilize the left brain for speech. There is, however, a lateralized motor preference in animals, turning behavior, t...
متن کاملHandedness of a Motor Program in C. elegans Is Independent of Left-Right Body Asymmetry
Complex animals display bilaterally asymmetric motor behavior, or "motor handedness," often revealed by preferential use of limbs on one side. For example, use of right limbs is dominant in a strong majority of humans. While the mechanisms that establish bilateral asymmetry in motor function are unknown in humans, they appear to be distinct from those for other handedness asymmetries, including...
متن کاملHandedness 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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Clinical Neurology
سال: 2006
ISSN: 1738-6586
DOI: 10.3988/jcn.2006.2.2.113