CN106267514B - Feeling control system based on brain electricity feedback - Google Patents
Feeling control system based on brain electricity feedback Download PDFInfo
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- A61B5/369—Electroencephalography [EEG]
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Abstract
The invention discloses a kind of Feeling control systems based on brain electricity feedback, including information acquisition module, signal processing control module, feedback module, human-computer interface module, evaluation module and data management module.The present invention relates to Feeling controls, electro physiology field, and the training of Feeling control ability is carried out using EEG feedback technology；Since brain has plasticity, brain electricity can reflect big movable transient changing, the present invention carries out the training of the mood regulation ability of brain by biofeedback technology, the purpose of raising subject's Feeling control ability may be implemented, using this EEG feedback system, the ability that people adjust Negative Emotional can effectively improve.
Description
Technical field
The present invention relates to a kind of health management devices to be applied to life more particularly to a kind of Emotional intervention and training equipment
Life and health equipment technology, Feeling control technology and electrophysiological technique field.
Background technique
Mood is fast changing psychology and physiological phenomenon, has reacted the adaptation that body takes continually changing environment
Mode is to the attitude experience of objective things and behavior reaction.With the generation of mood, individual physiology, psychological experiences and
External behavior can all generate corresponding change.Individual inherent experience, physiological reaction and behaviouristics are showed according to external stimulus
The mode regulated and controled is exactly Feeling control.Feeling control ability is a kind of important cognitive function that the mankind adapt to environment, good
Good Feeling control ability is the important symbol of individual psychology health.If Feeling control ability goes wrong, it is easy to draw
Send out the mental diseases such as depression, anxiety disorder.Therefore, the intervention of Feeling control and the training of ability are particularly important.
Current intervention/training is based primarily upon ethological method, can be by psychological health education, to its mood and interpersonal
Aspect is intervened.The study found that Feeling control process can excite the activity of prefrontal cortex, almond nuclear activity, mood are reduced
Regulation and control process is Observable, can intervene.With the development of biofeedback technology, the training for Feeling control becomes
It may.There is within nearly 2 years the real-time functional mri fMRI feedback technique of research and utilization to carry out the training of Feeling control,
Subject is by intuitively observing that the brain activity situation of itself effectively confirms the feasibility of system to complete regulation process.
But the pump back test cost based on fMRI is high；It is used as a dynamic process simultaneously, the time-varying characteristics of Feeling control are Milliseconds
, the feedback system carried out using fMRI, real-time is not high, affects regulation efficiency.
Summary of the invention
In order to solve prior art problem, it is an object of the present invention to overcome the deficiencies of the prior art, and to provide one kind
Based on the Feeling control system of brain electricity feedback, system implements feedback using scalp brain electricity EEG and on the one hand substantially increases the time point
Resolution effectively compensates for the deficiency of fMRI feedback system, while can simply, real-time and efficiently feed back to current electrical activity of brain
Trainer, thus the cost for improving the efficiency of feedback, reducing system.It is easily right that Feeling control system of the present invention enables users to
Regulate and control mood, be finally reached the purpose of ability training, is a kind of novel Feeling control system.
Purpose is created to reach foregoing invention, the present invention uses following inventive concepts:
The present invention is based on EEG feedback technologies, it carries out the instruction of Feeling control by electroencephalogramsignal signal analyzing to subject
Practice.System passes through the relative power situation of change of brain wave during detection Negative Emotional Picture is presented first, to determine to be tested
Feeling control process, and picture is carried out plus is made an uproar processing using the relative power value at the moment as the index of feedback, completion pair
The feedback of subject regulation result, is repeated to achieve the purpose that Feeling control ability training, finally completes mood tune with subject
The time of control, which is evaluated, is tested current Feeling control ability.
Conceived according to foregoing invention, the present invention adopts the following technical solutions:
A kind of Feeling control system based on brain electricity feedback, including information acquisition module, signal processing control module, feedback
Module, human-computer interface module, evaluation module and data management module, system include administrator and two class user of subject, they
With different permissions, human-computer interface module includes messaging parameter setting function, utilizes the emotional distress of picture, sound or video
Display function and electrical activity of brain characteristic display function, messaging parameter are arranged function and realize between information acquisition module and server
The setting of Connecting quantity only allows administrator to operate, and electrical activity of brain characteristic display function shows the brain activity of subject
Feature, subject is presented to using the emotional distress of picture, sound or video, as the perception target of subject, for brain
Electrical activity characteristic shows function module, and brain electrical feature is calculated according to signal processing control module, by it with column diagram and brain electricity
The mode of topographic map is shown, this function only limits administrator's use, and information acquisition module uses the communication of client-server
Mode, using eeg signal acquisition system as server, using PC machine as client, to read EEG signals data, brain telecommunications
Number acquisition system is by the messaging parameter setting control signal connection of human-computer interface module, to start acquisition EEG signals in real time,
Signal processing control module receives the output data of information acquisition module and is pre-processed, and the feature of brain wave is calculated, to set
Determine the index of feedback threshold and Feeling control, and be output to data management module, comes by comparing Feeling control index and threshold value
Determine control feedback module；After feedback module receives signal processing control module plus instruction of making an uproar, using to man-machine interface mould
The mode that the emotional distress that block is shown carries out plus makes an uproar, will add the emotional distress feedback output of noise to human-computer interface module, made
Subject receives the information of feedback module output, realizes Feeling control training, and feedback module receives signal processing control module
Stopping add and make an uproar instruction after, then stop plus make an uproar；Subject imitates the emotional distress before and after Feeling control by evaluation module
Valence evaluation and arousal evaluation, evaluation result are output to data management module；Data management module is responsible for data in program operation
Record, preservation and output, including tracer signal processing and control module generate feedback signal, emotional distress be in current moment, feelings
Thread stimulation adds the record and preservation, administrative staff at make an uproar moment and emotional distress stopping plus time data of making an uproar can be by the number after preservation
According to printout.
The emotional distress using picture, sound or video of above-mentioned human-computer interface module is aobvious as a preferred technical solution,
The emotional distress for showing function display output is emotional distress picture.
The technical solution further preferred as above scheme, signal processing control module are stimulated according to subject first
Preceding brain electrical feature determines the initial threshold of its brain electrical feature, feelings when then when carrying out Feeling control that subject is stimulated
The brain electrical characteristic data of thread regulation is compared with the initial threshold of brain electrical feature, after determining whether to control feedback module progress
Continuous feedback.
The technical solution further preferred as above scheme, in signal processing control module, if brain electrical characteristic values are high
In the 30% of initial threshold, then send plus make an uproar to feedback module instruction, if being lower than the 90% of initial threshold, sends out to feedback module
Send stopping plus instruction of making an uproar.
The technical solution further preferred as above scheme controls mould when receiving signal processing in feedback module
Block plus make an uproar after instruction, then picture is carried out plus is made an uproar, subject is made to receive the information of feedback module output, realize Feeling control instruction
Practice, when receive stop plus make an uproar instruction after, then stop plus make an uproar, feedback terminates.Feedback module is by way of adding and making an uproar to subject
Information feedback is carried out, so that it is perceived current Feeling control state, when the stopping for receiving signal processing control module adds finger of making an uproar
When enabling, then stop adding mood making an uproar, informs that subject's Feeling control process terminates.
The present invention compared with prior art, has following obvious prominent substantive distinguishing features and remarkable advantage:
1. having the characteristics that at low cost, temporal resolution is high the present invention is based on the Feeling control system of brain electricity feedback；
2. the present invention carries out Feeling control using EEG feedback technology, according to real-time brain electricity feedback as a result, mentioning
Change for emotional state, enable users to easily regulate and control mood, be finally reached the purpose of ability training, is a kind of novel mood
Regulator control system；
3. the present invention shows feedback information in such a way that stimulation is carried out plus made an uproar, the concentration of subject's attention is kept,
Farthest reduce the interference except stimulation；
4. carrying out Feeling control ability using EEG feedback technology the present invention relates to Feeling control, electro physiology field
Training；
5. brain has plasticity, brain electricity can reflect big movable transient changing, and the present invention passes through biofeedback technology
The purpose for improving subject's Feeling control ability may be implemented in the training for carrying out the mood regulation ability of brain, uses this brain electricity
Biological feedback system can effectively improve the ability that people adjust Negative Emotional.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the Feeling control system that the preferred embodiment of the present invention is fed back based on brain electricity.
Fig. 2 is the initial evaluation flow chart of the preferred embodiment of the present invention.
Fig. 3 is the operational flowchart that the Feeling control of the preferred embodiment of the present invention is fed back.
Fig. 4 is that the Feeling control system of the preferred embodiment of the present invention carries out the flow chart of Feeling control.
Specific embodiment
Details are as follows for the preferred embodiment of the present invention:
In the present embodiment, referring to Fig. 1~4, a kind of Feeling control system based on brain electricity feedback, it is characterised in that: packet
Include information acquisition module 1, signal processing control module 2, feedback module 3, human-computer interface module 4, evaluation module 5 and data management
Module 6, system include administrator and two class user of subject, they have different permissions.Human-computer interface module 4 includes communication
Function, emotional distress display function and electrical activity of brain characteristic display function using picture, sound or video is arranged in Connecting quantity,
The setting for the Connecting quantity that function is realized between information acquisition module and server is arranged in messaging parameter, only administrator is allowed to carry out
Operation, is presented to subject for emotional distress using the emotional distress display function of picture, sound or video, as subject's
Brain electrical feature is calculated according to signal processing control module 2 for electrical activity of brain characteristic display function module in perception target,
It is shown in a manner of column diagram and brain electrical activity mapping, this function only limits administrator's use.Information acquisition module 1 uses
The communication mode of client-server, using eeg signal acquisition system as server, using PC machine as client, to read
EEG signals data, eeg signal acquisition system is connected by the messaging parameter setting control signal of human-computer interface module 4, to open
Dynamic acquisition EEG signals in real time, signal processing control module 2 receive the data that information acquisition module 1 exports and are pre-processed,
By calculating the feature of brain wave, to set the index of feedback threshold and Feeling control, and it is output to data management module 6, instead
It is that feedback module 3 receives signal processing control module 2 plus after instruction of making an uproar, it is carried out using the emotional distress to human-computer interface module 4
Add the mode made an uproar, the emotional distress feedback output of noise will be added to human-computer interface module 4, subject is made to receive feedback module 3
The information of output, realize Feeling control training, the stopping that feedback module receives signal processing control module adds make an uproar instruction after, then
Stopping plus makes an uproar, subject carries out potency evaluation to the emotional distress before and after Feeling control by evaluation module 5 and arousal is evaluated,
Evaluation result is output to data management module 6, and data management module 6 is responsible for record, preservation and the output of data in program operation,
Feedback signal, the emotional distress generated including tracer signal processing and control module 2 add in current moment, emotional distress make an uproar the moment and
Emotional distress, which stops plus makes an uproar the record of time data and preservation, administrative staff, to export the data-printing after preservation.
In the present embodiment, referring to Fig. 1~4, the emotional distress using picture, sound or video of human-computer interface module 4
The emotional distress of display function display output is emotional distress picture.Picture is worked out from Chinese Academy of Sciences's mental health key lab
Chinese emotional picture system.
In the present embodiment, referring to Fig. 1~4, brain electricity of the signal processing control module 2 first according to subject before stimulated
Feature determines the initial threshold of its brain electrical feature, brain electrical feature when then when carrying out Feeling control that subject is stimulated
Data are compared with the initial threshold of brain electrical feature, carry out subsequent feedback to determine whether to control feedback module 3.In signal
In processing and control module 2, if brain electrical characteristic values are higher than the 30% of initial threshold, send plus make an uproar to feedback module 3 instruction, if low
In the 90% of initial threshold, then the instruction that stops plus make an uproar is sent to feedback module 3.
In the present embodiment, it referring to Fig. 1~4, in feedback module 3, makes an uproar when receiving adding for signal processing control module 2
After instruction, then picture is carried out plus made an uproar, subject is made to receive the information of feedback module output, realize Feeling control training, when connecing
After receiving stopping plus instruction of making an uproar, then stops plus make an uproar, feedback terminates.
In the present embodiment, referring to Fig. 1~4, into before formal regulation, user first carries out the irritating picture of institute
" potency evaluation " and " arousal evaluation ", is divided into 5 grades, scores as 1-5, and system records each evaluation score, such as Fig. 2.It is complete
After evaluation at all pictures, user enters Feeling control part, and the regulation process of single picture is referring to Fig. 3, first in people
The blank picture with "+" symbol is seen in the computer screen center of machine interface module 4, shows 2 seconds, user is at this time
Quiescent condition.Then screen can show negativity picture, and user carries out reappraisal to the picture, to reduce its bring mood
Reaction.System can determine whether to feed back user according to the situation of change of user's brain electricity at this time, if being fed back,
Display added the negativity picture of noise.After feedback, computer pops up " potency evaluation " and " arousal evaluation " picture again, allows
User carries out the evaluation of arousal and potency to the picture seen before, and evaluation finishes, and picture disappears.Then next is carried out
The regulation of picture.
The primary structure of whole system is as shown in Figure 1, specific feedback step such as Fig. 4:
The specific implementation of feedback module is as follows:
Step 0: the theta relative power E θ at current time being first calculated by signal processing control module, and uses
Person is in the theta relative power Ebase of baseline under quiescent condition；
Step 1: the two size being compared, to decide whether to carry out feedback operation.If the difference of E θ and Ebase are higher than
The 30%T1 of Ebase turns to step 2；Otherwise step 3 is turned to；
Step 2: picture is carried out plus made an uproar；
Step 3: display current image；
Step 4: calculating the E θ at current time by signal processing control module again；
Step 5: comparing E θ and Ebase, if the difference of E θ and Ebase are not less than the 10%T2 of Ebase, return step 1；If
The difference of E θ and Ebase are less than the 10% of Ebase, enter step 6；
Step 6: it is required that subject evaluates the arousal and potency of the picture.
In the present embodiment, referring to Fig. 1, whole system includes information acquisition module 1, signal processing control module 2, feedback
Module 3, human-computer interface module 4, evaluation module 5 and data management module 6.User is negative by the observation of human-computer interface module 4
Property picture, such as sad to generate negative feeling, fear etc.；Potency and arousal are carried out by 5 pairs of stimulation pictures of evaluation module
Evaluation.System acquires the real-time EEG signal of user by information acquisition module 1, then right by signal processing control module 2
EEG signal is pre-processed, while calculating the power of assigned frequency band, the index as Feeling control.It is right in feedback module 3
The index gone out calculated in signal processing control module 2 is monitored, and after it is more than certain threshold value, system determines user
Feeling control is carried out, and result is fed back into user, the mode of feedback is to carry out plus make an uproar to negativity picture, weakens it to making
The stimulation of user.Details as Follows with function for each module design:
Information acquisition module 1: selecting the communication mode of server/customer end, by eeg signal acquisition system as service
Device acquires EEG signals, by PC machine as client, reads eeg data.
Signal processing control module 2: being mainly responsible for and handle the data that client receives, and is referred to extracting feedback
Mark.Specifically include the pretreatment of signal and the calculating of assigned frequency band power, then using the parameter of extraction as the threshold value of baseline or
The real time data of person's feedback stage drives feedback module.
Feedback module 3: the feedback threshold of the real time data and setting that are obtained according to signal processing control module, result is anti-
It feeds subject.In the present system, the mode of feedback is to carry out adding processing of making an uproar to stimulation picture according to feedback threshold.
Human-computer interface module 4: including messaging parameter, button, stimulation picture is shown and EEG spectrum is shown.
Evaluation module 5: comprising being evaluated before regulating and controlling and to the potency evaluation of stimulation picture and arousal after regulation, evaluation result
It is saved in data management module.
Data management module 6: being responsible for record, preservation and the output of data in program operation, here includes feedback index, figure
Piece is in current moment, and picture adds make an uproar moment and picture to stop plus make an uproar the preservations of the data such as constantly, and administrative staff can will be after preservation
Data-printing output.
The present embodiment is applied to Feeling control, electro physiology field, carries out Feeling control energy using EEG feedback technology
The training of power.Brain has plasticity, and brain electricity can reflect big movable transient changing, and the present embodiment passes through biological feedback method
The training for carrying out the mood regulation ability of brain is able to achieve the purpose for improving subject's Feeling control ability, uses the present embodiment
EEG feedback system can effectively improve the ability that people adjust Negative Emotional.
The embodiment of the present invention is illustrated above in conjunction with attached drawing, but the present invention is not limited to the above embodiments, it can be with
The purpose of innovation and creation according to the present invention makes a variety of variations, under the Spirit Essence and principle of all technical solutions according to the present invention
Change, modification, substitution, combination or the simplification made, should be equivalent substitute mode, as long as meeting goal of the invention of the invention,
Without departing from the technical principle and inventive concept of the Feeling control system fed back the present invention is based on brain electricity, belong to of the invention
Protection scope.
Claims (5)
1. a kind of Feeling control system based on brain electricity feedback, it is characterised in that: including signal acquisition module (1), signal processing
Control module (2), feedback module (3), human-computer interface module (4), evaluation module (5) and data management module (6), it is described man-machine
Interface module (4) includes communication connection parameter setting function, emotional distress display function and brain using picture, sound or video
Electrical activity characteristic display function, messaging parameter setting function realize setting for the Connecting quantity between information acquisition module and server
It sets, emotional distress is presented to subject using the emotional distress display function of picture, sound or video, as recognizing for subject
Know target, for electrical activity of brain characteristic display function module, brain electrical feature be calculated according to signal processing control module (2),
It is shown in a manner of column diagram and brain electrical activity mapping, the information acquisition module (1) is using client-server
Communication mode, using eeg signal acquisition system as server, using PC machine as client, to read EEG signals data, brain
Electrical signal collection system is connected by the messaging parameter setting control signal of human-computer interface module (4), to start acquisition brain in real time
Electric signal, the signal processing control module (2) receive the data of signal acquisition module (1) output and are pre-processed,
By calculating the feature of brain wave, to set the index of feedback threshold and Feeling control, and it is output to the data management module
(6), the feedback module (3) receive the signal processing control module (2) plus after instruction of making an uproar, using to the man-machine boundary
The mode that the emotional distress of face mould block (4) carries out plus makes an uproar will add the emotional distress feedback output of noise to the man-machine interface
Module (4) makes subject receive the information of feedback module (3) output, realizes Feeling control training, and feedback module receives
The stopping of signal processing control module adds make an uproar instruction after, then stop plus make an uproar, subject is by the evaluation module (5) to mood tune
The emotional distress of control front and back carries out potency evaluation and arousal evaluation, and evaluation result is output to the data management module (6), institute
Record, preservation and output that data management module (6) are responsible for data in program operation are stated, including records the signal processing control
Feedback signal that module (2) generates, emotional distress add in current moment, emotional distress makes an uproar the moment and when emotional distress stops plus makes an uproar
The record and preservation, administrative staff for carving data can export the data-printing after preservation.
2. the Feeling control system according to claim 1 based on brain electricity feedback, it is characterised in that: the human-computer interface module
(4) emotional distress of the emotional distress display function display output using picture, sound or video is emotional distress picture.
3. the Feeling control system according to claim 1 or claim 2 based on brain electricity feedback, it is characterised in that: the signal processing
Control module (2) determines the initial threshold of its brain electrical feature according to the stimulated preceding brain electrical feature of subject first, then exists
Be compared brain electrical characteristic data of subject when stimulated with the initial threshold of brain electrical feature when Feeling control, with true
Fixed whether the control feedback module (3) carry out subsequent feedback.
4. the Feeling control system according to claim 3 based on brain electricity feedback, it is characterised in that: in the signal processing control
In molding block (2), if brain electrical characteristic values are higher than the 30% of initial threshold, send plus make an uproar to feedback module (3) instruction, if being lower than
The 90% of initial threshold then sends the instruction that stops plus make an uproar to feedback module (3).
5. the Feeling control system according to claim 1 or claim 2 based on brain electricity feedback, it is characterised in that: in the feedback mould
In block (3), when it is receiving the signal processing control module (2) plus make an uproar instruction after, then picture is carried out plus is made an uproar, make subject
Receive feedback module output information, realize Feeling control training, when receive stop plus make an uproar instruction after, then stop plus make an uproar, instead
Feedback terminates.
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| CN108784692A (en) * | 2018-05-11 | 2018-11-13 | 上海大学 | A kind of Feeling control training system and method based on individual brain electricity difference |
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| CN111026265A (en) * | 2019-11-29 | 2020-04-17 | 华南理工大学 | System and method for continuously labeling emotion labels based on VR scene videos |
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