The investigation of synchronization between different areas of the brain in locomotor activity

摘要

In the present paper we describe that the synchronization of various patterns of brain activity in the processof locomotor activity differs for groups of conditionally healthy subjects and patients. We study the differencebetween healthy subjects, patients in post-stroke dynamics and patients with chronic hypertension. Conditionallyhealthy individuals demonstrate the normal (typical) character of brain activity when moving with the hand.Impaired blood supply to the brain, apparently, leads to a stationary increase in the frequency of oscillatoryactivity recorded on the EEG, which is observed for patients with both background recording and physicalactivity. Patients with paresis caused by cerebral hemorrhages and disorders of the corresponding mechanismsin the acute period after stroke recovery demonstrate an uncompensated destruction of the mechanism forcontrolling the motor functions of the hands, leading to an increase in low-frequency activity patterns duringattempts to make a movement. Patients with arterial hypertension and cerebral ischemic disease in the courseof the motor act show an increase in the amplitude of the patterns in the α- frequency range (8 -12 Hz). Theanalyses of EEG data is based on wavelet math methods. The study of the level of EEG activity changes mayserve as some diagnostic criterion for assessing changes in brain activity during the development of degenerativeprocesses.