Morenko A. Brain processes during execution of manual movements in individuals with different characteristics of alfa-rhythm

The study involved 217 men and women aged 19?21, the high and low background of individual alfa-frequency. Evaluated a simple sensorimotor reaction and response selection speed capabilities of neural processes during Tapping testing, accuracy of evaluation and reproduction minute intervals, performance power and coherence in teta-, alfa1-, alfa2-, alfa3-, beta1-, beta2 and gamma- EEG sub-bands identified in each subject individualy, amplitude and frequency parameters of EMG distal muscles at rest, during fonostymulation, clamping and unclamping a fingers without effort to force load bulkhead stop. Surveyed with high alfa-frequency, increasingly men, said a higher level of activation tone cortex, of lateral and asymmetry downward reciprocal innervation muscular periphery alone, as well as more attention is selective, differentiated and rational changes in the electrical activity of the cerebral cortex, the distal muscles during execution of manual movements, which is associated with greater speed and accuracy sensorimotor response. In people with low alfa-frequency, especialy in women, set changes are less specific and reflect the significant strengthening of non-specific activation of the cortex.