Apoplexy recovery degree index calculation method based on brain electrical signals

Abstract

The invention relates to an apoplexy recovery degree index calculation method based on brain electrical signals. The method includes the following steps of firstly, enabling a preferred examinee to execute a left / right hand motor imagery task according to a prompt, utilizing multi-channel brain electrical signal collecting equipment to collect the brain electrical signals produced when the examinee executes the motor imagery task, then, utilizing a public average eliminating reference method to lower the level of public noise, utilizing an independent component analysis method to eliminate ocular artifacts, improving the signal to noise ratio of the brain electrical signals, utilizing a Butterworth filter to draw data of frequency ranges which are closely relevant to the motor imagery task for later analysis, finally, calculating a coefficient of polymerization and an overall efficiency property of a brain function network, calculating accuracy of the execution of the motor imagery task, utilizing the brain function network property and motor imagery task accuracy as recovery degree indexes, and storing calculation results in a special data base. The apoplexy recovery degree index calculation method based on the brain electrical signals has the advantages of being free of will interference and strong in objectivity. An objective assessing basis can be obtained through the method.

Description

technical field [0001] The invention belongs to the field of rehabilitation biomedicine, and relates to a method for calculating a stroke rehabilitation index based on electroencephalogram signals. Background technique [0002] Stroke is currently one of the major diseases that endanger human health. It has the characteristics of high mortality, high disability rate, high recurrence rate, many complications, and low cure rate. At present, there are many treatment methods such as drug therapy, acupuncture, massage and so on. In terms of stroke curative effect evaluation, the traditional evaluation method is based on various symptoms of stroke, which are determined by scoring item by item and accumulating ratings. symptoms, etc., [0003] The traditional curative effect evaluation method measures the severity or recovery of a patient by observing the patient's physical control ability, language function and other external manifestations. On the one hand, the measurement of ...

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Problems solved by technology

On the one hand, the measurement of these indicators is carried out through the observation of patients by doctors or nurses. The measurement requirements of each person cannot be completely consistent, and there is a certain degree of subjectivity.

On the other hand, in some cases, damage to peripheral nerve pathways can also lead to abnormal performance of these functions. In fact, the corresponding areas of the patient's brain have not been damaged or have returned to normal. In these cases, the recovery of brain function cannot be accurately measured by traditional indicators. degree

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