CN107802938A - A kind of music electrical stimulation analgesia method - Google Patents
A kind of music electrical stimulation analgesia method Download PDFInfo
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- CN107802938A CN107802938A CN201711186135.1A CN201711186135A CN107802938A CN 107802938 A CN107802938 A CN 107802938A CN 201711186135 A CN201711186135 A CN 201711186135A CN 107802938 A CN107802938 A CN 107802938A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M21/02—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Anesthesiology (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Pain & Pain Management (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
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Abstract
The invention discloses a kind of music electrical stimulation analgesia method, chooses the music that subject is liked, and three kinds of pitch, the duration of a sound and loudness features of music are at least extracted according to the reproduction time order of music；The pitch of extracted music, the duration of a sound and loudness feature are converted into the frequency of stimulation for corresponding to electro photoluminescence respectively, stimulus duration and stimulus intensity parameter, form the music electro photoluminescence with musical rhythm and temperament sense；Skin surface of the musical electric stimulation in subject is eased pain for it.The present invention chooses the music that subject is liked, and music is analyzed and processed, extract the pitch for representing music rhythm, the duration of a sound and loudness data information, the melodic information that extraction obtains is converted into electrical stimulation signal again to act on egersimeter, egersimeter acts on the skin surface of subject, so that the electro photoluminescence that subject is experienced is the rhythm, melody, the strong and weak signal to match of same music, analgesic effect is improved.
Description
Technical field
The invention belongs to preoperative anaesthesia technology field, and in particular to a kind of music electrical stimulation analgesia method, for instructing reality
When adjust analgesia scheme.
Background technology
Pain is a kind of complicated subjective feeling being widely present in during we live, and International Association for Pain Research is defined
For " the offending subjective sensation and emotional experience related to tissue damage or potential tissue damage ".Pain can not only cause body
The discomfort of body, and a series of emotional problems may be triggered to cause the decline of people's cognitive function, it drastically influence people's
Quality of life.And common language of the music as the mankind, strengthen in communication exchange, emotional expression, mood regulation and cohesiveness
Etc. play the role of it is important.Graceful melodious music be often regarded as improving nervous system, cardiovascular system, interior point
System and digestive system function are secreted, regulating blood flow amount, strengthens nervous system activity；Corticocerebral excitability is improved, improves people
Mood, excite emotion, inspire enthusiasm；Help to eliminate psychology, the anxiety caused by social factor, anxiety, melancholy, terror
Deng unhealthy psychology, stress ability is improved.
In recent years, existing a large amount of clinical research confirmations, music can reduce pain intensity, unpleasantness, and improve its pain
Pain tolerance.In addition, music is also proved that the oxytocin level of patient can be improved, it is horizontal and burnt so as to reduce the pain of subject
Consider horizontal.However, Meeuse et al. researchs of 2010 point out that patient can not effectively be reduced in enteroscopy by listening to music
Whether the pain experienced, showing the clinical analgesic effect of music there is generality still to need further to be verified.On the one hand, music
Analgesic effect may be adjusted by pain intensity, such as may be excessively strong with some specified diseases or the pain of inspection,
So that subject can not process music information, so as to realize that music is eased pain；On the other hand, due in clinical practice music lead to
Often be only used as ancillary drug treatment analgesia means implement, can not determine at present music analgesic effect whether with organic disease,
Reciprocation be present in drug combination etc..
Current music electrical stimulus patternses, the method for generally use are：The fluctuation signal of music is directly converted into electric thorn
Sharp waveform, human body is then acted on, first music content is not parsed and handled, cause human body at all can not be from this
Rhythm and the regular movements of music are experienced in the electrical stimulation signal of sample.
The content of the invention
Therefore, the present invention does not have rhythm to solve existing music electrical stimulation technology in the electro photoluminescence present in analgesia field
Sense and the technical problem of temperament sense, there is provided a kind of music electrical stimulation analgesia method.
Used technical scheme is as follows：
A kind of music electrical stimulation analgesia method, choose the music liked of subject, according to music reproduction time order at least
Extract three kinds of pitch, the duration of a sound and loudness features of music；The pitch of extracted music, the duration of a sound and loudness feature are converted into difference
Frequency of stimulation, stimulus duration and the stimulus intensity parameter of corresponding electro photoluminescence, formed with musical rhythm and temperament sense
Music electro photoluminescence；Skin surface of the musical electric stimulation in subject is eased pain for it.
The specific method of the pitch of described extraction music, the duration of a sound and loudness feature is：
Step 1: caused audio-frequency information is converted to Time-Frequency Information during by music；
Step 2:, extract the most strong frequency values of upper energy of each time point successively by Time-Frequency Information sequentially in time, and
And record corresponding frequency energy value；
Step 3: according to the corresponding relation between the pitch and frequency pre-established, each reproduction time in music is obtained
The when m- pitch data of point；
Step 4: pitch data consecutive identical in music time point are merged into a sound, and press reproduction time
Order calculates the duration of each sound, the data of m- pitch-duration of a sound when obtaining；
Step 5: according to the length of each sound obtained by step 4, by the energy value of each frequency in step 3 according to
The length of sound is averaged, and obtains the loudness feature of each sound.
Continuous wavelet transform (CWT) or Short Time Fourier Transform (STFT) method are used in the step 1 by the sound of music
Frequency information is converted into Time-Frequency Information.
Corresponding relation between the pitch and frequency that are pre-established in the step 3 is the increasing or decreasing according to pitch
The upper limit value and lower limit value section of order and set each electro photoluminescence frequency forms one-to-one relationship.
By musical electric stimulation while the skin surface of subject eases pain for it, played and music electro photoluminescence to subject
Corresponding music.
By musical electric stimulation in the skin surface of subject while, music is not played to subject.
While the musical features extracted are sent to egersimeter, by " pitch " and " loudness " parameter be adjusted with
Match different egersimeters.
Technical solution of the present invention, have the following advantages that：
A. the present invention chooses the music that subject is liked, and music is analyzed and processed, and extracts and represents music rhythm
Pitch, the duration of a sound and loudness data information, then the melodic information that extraction is obtained are converted into electrical stimulation signal and act on egersimeter
On, egersimeter acts on the skin surface of subject so that is tested rhythm, melody that the electro photoluminescence experienced is same music, strong
The weak signal to match, improves analgesic effect.
B. the present invention is when extracting the pitch, the duration of a sound and loudness feature of music, in the case of ensureing that extraction pitch is accurate,
Continuous wavelet transform (CWT) or Short Time Fourier Transform (STFT) method are employed, its converting algorithm is easier, is extracted
Corresponding fitting effect is more preferable between pitch and frequency, makes to act on frequency of stimulation regular movements caused by the egersimeter on human body and imitates
Fruit is more preferable.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is music electro photoluminescence block diagram compared with pain scores provided by the present invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Music electrical stimulation analgesia method provided by the present invention is as follows：
The music that subject is liked is chosen, pitch, the duration of a sound and the sound of music are at least extracted according to the reproduction time order of music
Spend three kinds of features；The pitch of extracted music, the duration of a sound and loudness feature are converted into the frequency of stimulation for corresponding to electro photoluminescence respectively, thorn
Swash duration and stimulus intensity parameter, form the music electro photoluminescence with musical rhythm and temperament sense；By music electro photoluminescence
The skin surface for acting on subject eases pain for it.
Specifically the specific method of the pitch of extraction music, the duration of a sound and loudness feature is：
【S1】Caused audio-frequency information is converted to Time-Frequency Information during by music.
The use of continuous wavelet transform (CWT) function is on computers 44100Hz's by one section of sample rate by Matlab
Music is converted into the matrix 1 of Time-Frequency Information, i.e. M1.The centre frequency and bandwidth selection " cmol 1- of continuous wavelet transform (CWT)
1.5 ", use " 1:1024 " change of scale.
Specific code is：abs(cwt(music,1:1024,'cmor1-1.5')；
Wherein " music " variable is music to be processed, and " abs () " function is to take absolute value, and is easy to calculating below.
(1) continuous wavelet transform (CWT) principle is as follows：
By any L2(R) the function f (t) in space is deployed under wavelet basis, and title is this to expand into function f's (t)
Continuous wavelet transform (CWT), its expression formula are：
Wavelet conversion coefficient of the arbitrary function on a certain yardstick a, translation point τ, substantially characterize be in τ opening positions,
It is included in centre frequency on period a Δ tWith a width ofFrequency component size in frequency window.With yardstick a change
Change, corresponding window center frequencyWindow widthAlso change.
(2) principle of Short Time Fourier Transform (STFT) is as follows：
The very short window function r (t) of a time width is given, makes window slide, then signal x (t ') STFT is defined as:
【S2】By Time-Frequency Information sequentially in time, the most strong frequency values of upper energy of each time point are extracted successively, and
Record corresponding frequency energy value.
I.e., by Time-Frequency Information matrix M1 sequentially in time, the most strong frequency number of upper energy of each time point is extracted successively,
And record corresponding energy value and be designated as matrix 2, i.e. M2.
【S3】According to the corresponding relation between the pitch and frequency pre-established, each play time in music is obtained
When m- pitch data.
Corresponding relation between the pitch and frequency established is as shown in table 1 below, and M2 is categorized as into 96 sounds by table 1, obtained
To pitch arrangement sequentially in time, matrix 3, i.e. M3 are designated as.Now containing 3 columns in M3, each column represents time point respectively,
Pitch and intensity.
Table 1：Corresponding relation between the pitch and frequency established
【S4】Pitch data consecutive identical in music time point are merged into a sound, and press reproduction time order
The duration of each sound is calculated, the data of m- pitch-duration of a sound when obtaining.
Here merging treatment has been carried out to continuous identical pitch, pitch consecutive identical in M3 is merged into a sound,
And the duration of each sound is calculated, the data of m- pitch-duration of a sound, are designated as matrix 4, i.e. M4 when obtaining.Now there are three row in M4
Number, each column represent time, pitch and the duration of a sound respectively.
【S5】Will【S3】In obtained by matrix M3 in each frequency energy value, by the chi of the duration of a sound of each sound in M4
Degree is averaged, and obtains the loudness feature of each sound, and the loudness feature of each sound is designated as to M4 the 4th columns.Now M4 has four
Columns, each column represent time, pitch, the duration of a sound and loudness respectively.
The SXC-4A multichannel electric stimulating instruments that experiment produces using three chivalrous Science and Technology Ltd. of Beijing.By M4 data
It is converted into frequency of stimulation (scope is 10~90Hz), stimulus duration and the stimulus intensity of electro photoluminescence (scope is 1mA~3mA)
Act on the left hand arm of subject, and the music played by computer simultaneously, when a length of 5 minutes.In playing process, to subject
Left hand arm on apply pain stimulation (laser stimulation) totally 10 times, and allow subject to be scored the pain stimulation (0~10
Point).
In order to observe analgesic effect, experiment also measures the following two kinds situation simultaneously：
(1) music, only electro photoluminescence are not played；
(2) music is not played, also without electro photoluminescence.
Under the conditions of above two, it is tested and pain stimulation is scored.Result of the test is as shown in figure 1, pain scores in figure
The experienced pain of more Gao Ze representative subjects is stronger, and to subject, using having under music is not played, electro photoluminescence scoring is minimum in figure,
And do not playing music and scored highest without the electro photoluminescence in the case of electro photoluminescence, the two effect difference is obvious, it can be seen that
The pain of subject is effectively reduced using music electro photoluminescence of the present invention with musical rhythm and temperament sense.
Illustrate to analyze and process music by analgesic test, extract the pitch for representing music rhythm, the duration of a sound and
Loudness data information, then the melodic information that extraction is obtained are converted into electrical stimulation signal and acted on egersimeter so that subject
The electro photoluminescence experienced is the rhythm, melody, the strong and weak signal to match of same music, improves analgesic effect.
Pitch, the duration of a sound and loudness feature are converted into the frequency of stimulation of electro photoluminescence, stimulus duration and stimulus intensity
During parameter, by the frequency range that different egersimeters is supported may be different, in the specific implementation, it is necessary to according to electro photoluminescence frequency
The actual conditions of rate are specifically changed.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (7)
- A kind of 1. music electrical stimulation analgesia method, it is characterised in that the music that subject is liked is chosen, according to the reproduction time of music Order at least extracts three kinds of pitch, the duration of a sound and loudness features of music；The pitch of extracted music, the duration of a sound and loudness feature are turned Turn to the frequency of stimulation for corresponding to electro photoluminescence respectively, stimulus duration and stimulus intensity parameter, formed have musical rhythm and The music electro photoluminescence of temperament sense；Skin surface of the musical electric stimulation in subject is eased pain for it.
- 2. music electrical stimulation analgesia method according to claim 1, it is characterised in that the pitch of described extraction music, The duration of a sound and the specific method of loudness feature are：Step 1: caused audio-frequency information is converted to Time-Frequency Information during by music；Step 2:, extract the most strong frequency values of upper energy of each time point successively, and remember by Time-Frequency Information sequentially in time Record corresponding frequency energy value；Step 3: according to the corresponding relation between the pitch and frequency pre-established, each play time in music is obtained When m- pitch data；Step 4: pitch data consecutive identical in music time point are merged into a sound, and press reproduction time order The duration of each sound is calculated, the data of m- pitch-duration of a sound when obtaining；Step 5: according to the length of each sound resulting in step 4, by the energy value of each frequency in step 3 according to sound Length is averaged, and obtains the loudness feature of each sound.
- 3. music electrical stimulation analgesia method according to claim 2, it is characterised in that using continuous small in the step 1 The audio-frequency information of music is converted into Time-Frequency Information by wave conversion (CWT) or Short Time Fourier Transform (STFT) method.
- 4. music electrical stimulation analgesia method according to claim 2, it is characterised in that pre-established in the step 3 Corresponding relation between pitch and frequency is the increasing or decreasing order and set each electro photoluminescence frequency according to pitch Upper limit value and lower limit value section forms one-to-one relationship.
- 5. music electrical stimulation analgesia method according to claim 1, it is characterised in that by musical electric stimulation in subject Skin surface for its analgesia while, play the music corresponding with music electro photoluminescence to subject.
- 6. music electrical stimulation analgesia method according to claim 1, it is characterised in that by musical electric stimulation in subject Skin surface for its analgesia while, not to subject play music.
- 7. music electrical stimulation analgesia method according to claim 1, it is characterised in that send the musical features extracted While to egersimeter, " pitch " and " loudness " parameter is adjusted to match different egersimeters.
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| CN113171534A (en) * | 2021-04-21 | 2021-07-27 | 浙江柔灵科技有限公司 | Superposition enhanced nerve modulation method and device based on music and energy wave function |
| US11635934B2 (en) | 2021-06-15 | 2023-04-25 | MIIR Audio Technologies, Inc. | Systems and methods for identifying segments of music having characteristics suitable for inducing autonomic physiological responses |
| CN116504206A (en) * | 2023-03-18 | 2023-07-28 | 深圳市狼视天下科技有限公司 | Camera capable of identifying environment and generating music |
| CN116943024A (en) * | 2023-07-26 | 2023-10-27 | 中国科学院心理研究所 | Analgesic system combining virtual reality with electric stimulation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116504206B (en) * | 2023-03-18 | 2024-02-20 | 深圳市狼视天下科技有限公司 | Camera capable of identifying environment and generating music |
| CN116943024A (en) * | 2023-07-26 | 2023-10-27 | 中国科学院心理研究所 | Analgesic system combining virtual reality with electric stimulation |
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