How does the brain create rhythms

摘要: Connection was found between rhythmic cortical activity and motor control. The 10 Hz micro-rhythm the 20-30 bursts represent two functional states of somatomotor system. A correspondence central cortex physiological hand tremor (8-12 Hz) is presumed. precise tuning system can be estimated by frequency repetitive finger movements. In complex tapping exercise, index most skillful, 3rd, 4th 5th fingers keep rhythm with less precision. It that organization mirror movements depends on representation fingers. Mirror are more regular if subject begins action (small) finger. Concerning regulation movements, it suggested there time-keeping systems in brain; one a sensitivity above another below critical 3 Hz. preferred meter which helps to maintain synchronous cadence 4/4 8/8. We observed unlearned inward-outward sequential movement equally impaired nonmusician controls patients Parkinson-disease. disorders, ability "clock-mechanism" involved. polyrhythmic not our inborn ability, has learned. "timer" function, regulates movement, presumably localised basal ganglia or cerebellum. music built reciprocal values 2 raised second fifth power (1/1(2), 1/2(2), 1/2(3), 1/2(4), 1/2(5)). EEG frequencies we consider important conscious actions approximately same domain (4, 8, 16, 32, 64 Hz). During performance, an neural process coupling distant brain areas. melody, musical taste Europeans octave-based. Musical ornaments also follow rule gothic construction, is: pursuit harmony towards single rising from unification 8-4-2 classes. Leibnitz concerned as unconscious mathematics soul. Movement-initiating effect used rehabilitation disorders. have superiority over melody. possible generated absence sensory input oscillators produce "fictive patterns".