Motor asymmetry, defined as the lack of symmetry in movements or postures, is often observed briefly in many typically developing children. However, if such asymmetry persists, it may be a sign of neurological disease. Recent studies have suggested that motor asymmetries may be an early symptom of Autism Spectrum Disorders (ASD). ASD involve a range of social, cognitive, and behavioral problems...

A pathological study of 21 patients with Parkinson's disease of asymmetrical onset revealed significant asymmetry of degeneration of the substantia nigra with greater neuronal loss contralateral to the initially affected body side. It has previously been suggested that decline in duration of effectiveness of levodopa doses in Parkinsonian patients with motor oscillations is caused by loss of ni...

While cerebral lateralization has previously been well documented for many neurobehavioral functions, recent research has shown that as people age, formerly lateralized processes recruit more symmetric patterns of neural activity. Such findings provide the foundation for the model of hemispheric asymmetry reduction in older adults, or "HAROLD"[4]. Previous studies that have measured reaction ti...

The subject of this research is the sensorless control method verification an asynchronous motor by a simulation in area low speed (up to 5 Hz) via high-frequency analog signal injection method. implementation continuous simpler when compared with discrete injection; however, has more advantages processing. injected will be superimposed on main stator voltage. response manifested mainly based a...

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...

objective: the cerebellum is a key structure involved in coordinated motor planning, cognition, learning and memory functions. this study presents a permanent model of a toxin produced cerebellar lesion characterized according to contemporary motor and cognitive abnormalities. materials and methods: in this experimental study, slow administration of quinolinic acid (qa, 5 μl of 200 μmol, 1 μl/m...

Whereas hemispheric dominance is well-established for appendicular motor control in humans, the evidence for dominance in axial motor control is still scarce. In Parkinson's disease (PD), unilateral (UL) onset of appendicular motor symptoms corresponds with asymmetric neurodegeneration predominantly affecting contralateral nigrostriatal circuits. Disease progression yields bilateral and axial m...

Focusing on the unstable electromagnetic performance of an air gap magnetic field caused by torque ripple and harmonic interference a multi-slot multi-pole low-speed high-torque permanent magnet synchronous motor (LHPMSM), asymmetric stator slot is proposed to improve comprehensive motor. Moreover, this paper develops exact analytical model which predicts distribution based Laplace’s Poisson’s ...

In this article, based on well-known literary data, the motor asymmetry of a person in training process aerobic cyclic sports is considered. The authors have analyzed features manifestation and consequences formation asymmetry, assessed its impact performance. Motor has been found to be genetic characteristics organism, but lateral phenotype may change during multi-year under influence physical...