Bilateral motor unit synchronization is functionally organized
نویسندگان
چکیده
منابع مشابه
Is cortical vasculature functionally organized?
The cortical vasculature is a well-structured and organized system, but the extent to which it is organized with respect to the neuronal functional architecture is unknown. In particular, does vasculature follow the same functional organization as cortical columns? In principle, cortical columns that share tuning for stimulus features like orientation may often be active together and thus requi...
متن کاملMotor-unit synchronization is not responsible for larger motor-unit forces in old adults.
Motor-unit synchronization, which is a measure of the near simultaneous discharge of action potentials by motor units, has the potential to influence spike-triggered average force and the steadiness of a low-force isometric contraction. The purpose of the study was to estimate the contribution of motor-unit synchronization to the larger spike-triggered average forces and the decreased steadines...
متن کاملMotor unit synchronization and neuromuscular performance.
The acute and chronic plasticity of motor unit synchronization suggests that it must represent a deliberate strategy for neuromuscular activation. The most likely functional role of motor unit synchronization is to increase the rate of force development during rapid contractions or as a mechanism to coordinate the activity of multiple muscles in synergy.
متن کاملMotor cortex is functionally organized as a set of spatially distinct representations for complex movements.
There is a long-standing debate regarding the functional organization of motor cortex. Intracortical microstimulation (ICMS) studies have provided two contrasting views depending on the duration of stimulation. In the rat, short-duration ICMS reveals two spatially distributed forelimb movement representations, the rostral forelimb area (RFA) and caudal forelimb area (CFA), eliciting identical m...
متن کاملSynchronization of motor-unit firings in several human muscles.
1. Synchronization of concurrently active motor-unit firings was studied in six human muscles performing isometric constant-force contractions at 30% of the maximal level. The myoelectric signal was detected with a quadrifilar needle electrode and was decomposed into its constituent motor-unit action-potential trains with the Precision Decomposition technique, whose accuracy has been proven pre...
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ژورنال
عنوان ژورنال: Experimental Brain Research
سال: 2006
ISSN: 0014-4819,1432-1106
DOI: 10.1007/s00221-006-0713-2