RU2296599C2 - Method for treating organism - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: method involves selecting characteristic frequencies of harmonic biosignal components. Activating signal is synthesized as a set of high-frequency components belonging acoustic frequency bandwidth being multiples of characteristic harmonic frequencies of biosignal components modulated with low-frequency components being multiples of characteristic harmonic frequencies of biosignal components. High- and low-frequency components are determined from formulas FHN = f_cc(i)*2ⁿ, flm = fcc(i)*2^m, where fcc(i) is the i-th frequency of characteristic harmonic component; fhn is the n-th frequency of high-frequency component belonging to acoustic frequency bandwidth; 2ⁿ is the n-th high-frequency component order factor; flm is the m-th frequency of low-frequency component.; 2^m is the m-th low-frequency component order factor.

EFFECT: enhanced effectiveness of psychophysiological condition correction; high accuracy in selecting frequencies usable in acoustic treatment.

Description

The invention relates to medicine and can be used to correct the functional state of a person.

A known method of correcting the functional state of a person with optimization of the parameters of external effects on the body, including recording the biopotentials of physiological parameters, converting and processing the information obtained with calculating the characteristic parameter of the biosignal, converting it into a control signal of the formation of external effects (AS USSR N 1745204, class A 61 B 5/04, 1992). In this case, the most preferred channel is selected and external influence, for example, the sound background is selected from a number of pre-recorded phonograms according to this signal. However, this method does not take into account the psychophysiological characteristics of a particular organism, which reduces the effectiveness of the correction of a functional state.

The closest in technical essence to the claimed is a method of exposure to the body (RU patent N 2096990, class A 61 5/04, bull. N 33. 11/27/97), including the registration of biopotentials, the allocation of a characteristic parameter of the biosignal, the formation of sound exposure in in the form of generating musical sounds by parametrically changing their pitch, volume and duration in a criterion depending on changes in the discrete current value of the characteristic generalized parameter of the private spectrum of the converted biosignal, while from truncated graphical information, time intervals of equal duration are distinguished, they are converted using harmonic analysis according to the Fourier method to a private spectrum, a generalized dimensionless parameter is determined for each interval, in the numerical interval between the minimum and maximum values of the generalized dimensionless spectral interval parameter, a proportional scale of musical sound parameters is built, determined for each spectral interval by the numerical value of the generalized dimensionless pairs tra corresponding value of musical sound parameters and convert them via the sound card into sound signals which are formed in a sequence corresponding to the registered original discrete current alternation of time intervals.

However, this method does not take into account specific specific frequencies of the biosignal corresponding to the activating or inhibitory frequencies of the acting signal, since the generalized parameter is taken into account in the formation of the acoustic signal in the known method.

The aim of the invention is to increase the effectiveness of psychophysiological effects due to a more accurate choice of frequencies of the synthesized effects.

In the process of studying the effect of sound harmonics of various frequencies on brain activity, it was found that there are harmonic sound components that increase and inhibit brain activity. Moreover, both activating and inhibiting harmonic components are contained in different ranges of sound frequencies. It was also established that there is an unambiguous dependence of the characteristic frequencies of the spectral composition of the biosignal and the activating and inhibiting frequencies of the affecting sound. As a result of a relative analysis of the values of the characteristic frequencies of the spectral composition of the biosignal and the activating and inhibiting frequencies of the affecting sound, the coefficients of their ratio are established. The values of the coefficients are determined by multiples of 2 to the nth power. Moreover, the magnitude of the degree n is determined by the ratio of the respective ranges of the biosignal and sound.

The solution to this problem is provided by the fact that in the method of influencing the body, including recording a biosignal, analyzing it and generating an activating effect by changing its parameters depending on the biosignal, according to the invention, the characteristic frequencies of harmonic components of the biosignal are isolated and the activating signal is synthesized as a combination of high-frequency components of the sound range, multiples of the frequencies of the characteristic harmonic components of the biosignal, modulated by low-frequency components -governing, multiple characteristic frequencies of the harmonic components of the biosignal, wherein the high and low frequency components defined by the formulas

ƒ _cn = ƒ _{cn (i)} 2 ⁿ

ƒ _nm = ƒ _{cn (i)} 2 ^m

Where:

ƒ _{cn (i)} is the frequency of the i-th characteristic harmonic component;

ƒ _bn - n-th frequency of the high-frequency component of the sound range;

2 ⁿ is the coefficient of the multiplicity of the n-th high-frequency component;

ƒ _nm - m-th frequency of the low-frequency component;

2 ^m - coefficient of multiplicity of the m-th low-frequency component

The proposed method is implemented as follows. A biosignal is recorded, for example, using the appropriate equipment, the biopotentials of physiological parameters, an EEG encephalograph, an ECG cardiograph, etc. are recorded. After appropriate processing of the biopotentials (filtering, editing, excluding artifacts and negative components), we study the spectral composition of the biosignal, and any known program for analyzing the spectral composition can be used, and characteristic frequencies can be extracted. For example, having maximum or minimum amplitudes.

For the selected frequencies that make up the biosignal, the frequencies of the harmonic components of the synthesized sound effect are calculated. As well as modulating frequencies of sound exposure. The values of these frequencies are determined by the formulas

ƒ _cn = ƒ _{cn (i)} 2 ⁿ

ƒ _nm = ƒ _{cn (i)} 2 ^m

Where:

ƒ _{cn (i)} is the frequency of the i-th characteristic harmonic component;

ƒ _bn - n-th frequency of the high-frequency component of the sound range;

2 ⁿ is the coefficient of the multiplicity of the n-th high-frequency component;

ƒ _nm - m-th frequency of the low-frequency component;

2 ^m - coefficient of multiplicity of the m-th low-frequency component

Using the obtained frequency values, for example, using a sound card or other synthesizer, the acting melody is synthesized depending on the task: to increase or slow down brain activity.

The proposed method allows you to generate a sound effect that is most appropriate to the tasks and specifics of a particular individual.

Claims (1)

A method of influencing the body, including recording a biosignal, generating an activating effect by changing its parameters depending on the biosignal, characterized in that the characteristic frequencies of the harmonic components of the biosignal are isolated and the activating signal is synthesized as a combination of high-frequency components of the sound range that are multiples of the frequencies of the characteristic harmonic components of the biosignal, modulated by low-frequency components that are multiples of the characteristic frequencies of the harmonic components biosignal, and high-frequency and low-frequency components are determined by the formulas ƒ _cn = ƒ _{cn (i)} 2 ⁿ , ƒ _nm = ƒ _{cn (i)} 2 ^m , where ƒ _{cn (i)} is the ith frequency of the characteristic harmonic component; ƒ _bn - n-th frequency of the high-frequency component of the sound range; 2 ⁿ is the coefficient of the multiplicity of the n-th high-frequency component; ƒ _nm - m-th frequency of the low-frequency component; 2 ^m is the coefficient of multiplicity of the m-th low-frequency component.