Patent RU-2742071-C1 (RU)
Inventor: KOTOV SERGEJ VIKTOROVICH
IPC: A61B5/00
Filed: 2020-09-08
Granted: 2021-02-02
Abstract: FIELD: medicine. 
     SUBSTANCE: invention refers to medicine, namely neurology and can be used for rehabilitation of stroke patients. That is ensured by trainings, presenting patient with mental task with subsequent control of patient's imagination, based on analysis of electroencephalogram (EEG) patterns occurring at imagination of task. EEG brain signals are recorded from a system of active electrodes of the encephalograph placed on the surface of the head, and transmitting said data to the computer for synchronous processing and extraction of signals responsible for the motion imagination using the EEG pattern classifier. Results of recognition of the performed mental task are presented to the patient by visual feedback on the monitor screen, by the value of which the correctness of the task is determined. Trainings are carried out on Neurochat complex, wherein the patient is given mental tasks with a certain sequence. First, neurodynamic processes are trained by mental selection of a given element; then training the emotional function with determining a given emotionally colored image. For volitional function training, jobs with monotonous load are proposed; then consecutively performing training of visual, auditory and memory and long-term memory by repeated presentation of stimuli of corresponding modalities. Thereafter, attention training is given by assigning attention concentration on significant elements of verbal information, by attention volume by comparison, a different set of images of objects, by stability of attention by identifying image details, by switching attention from one task to another, by attention distribution by selecting the right answer between several tasks performed in parallel. That is followed by training visual, spatial and auditory gnosis by presenting the appropriate stimuli. For praxis training mental tasks are given to identify kinesthetic, constructive and oral actions; thereafter, socialization and communication are trained by recognizing given pictures and solving verbal tasks. Finally, intelligent functions are trained by correctly selecting the solution of logical tasks. At that, when performing each task during the training, the patient is consistently presented with the tasks of three levels of difficulty, the patient should mentally fix his attention on the selected response, this event is recognized by the brain-computer interface by the appearance of potential P300 in occipital EEG leads and when determining the correctness of the response, the following tasks are presented to it. Patient then proceeds to train the next cognitive function, while receiving 2 consecutive wrong answers, the patient passes to training the next cognitive function. Training is carried out for 20–60 minutes, depending on the patient's health, daily, on course of 10–12 days. 
     EFFECT: method provides complex rehabilitation treatment involving not only improvement of cognitive functions, but also physical activity, general condition and state of health of the patients suffering a stroke. 
     1 cl, 2 ex, 28 dwg