KR100743967B1 - Device for brain function analysis/development using evoked potential - Google Patents

Abstract

An apparatus for analyzing and developing brains using evoked potential is provided to improve brain functions to be trained by giving feedback to users. An apparatus for analyzing and developing brains using evoked potential includes a stimulus generation unit(10), a question presentation unit(20), a signal receiving unit(30), a feature point detection unit(40), an analysis unit(50), a brain training unit(60), a control unit(70), and an output unit(80). The stimulus generation unit(10) presents a stimulus. The question presentation unit(20) supplies a perceptive force question. The signal receiving unit(30) measures the evoked potential generated by users by reacting the perceptive force of the question presentation unit(20) and the stimulus of the stimulus generation unit(10). The feature point detection unit(40) extracts a parameter from the perceptive force of the signal receiving unit(30). The analysis unit(50) analyzes the perceptive faculty of the users by using a feature point extracted by the feature point detection unit(40). The brain training unit(60) presents a question for a brain training based on the analyzed data. The control unit(70) controls the whole system to develop brain with the evoked potential. The output unit(80) outputs an image signal or a sound signal according to the control of the control unit(70).

Description

Device for brain function analysis / development using evoked potential

1 is a block diagram illustrating a configuration of a brain analysis / development apparatus using an induced potential according to the present invention;

FIG. 2 is a block diagram illustrating a configuration of a signal receiver applied to FIG. 1.

*** Explanation of main parts of drawing ***

10: stimulation generating unit 20: task presentation unit

30: signal receiver 40: feature point detector

50: analysis unit 60: brain training unit

70: control unit 80: output unit

The present invention relates to a brain analysis / development device using induced potentials. More specifically, using the trigger potential, the user's cognitive learning ability such as memorization, memory, numeracy, comprehension, reasoning ability, judgment ability, spatial perception ability, language ability such as reading, speaking, and writing is applied to each item. And a brain analysis / development device using induced potentials to enable the analysis and improvement of the user's ability for each item.

An induced potential refers to a potential generated in the human body after applying a certain direct or indirect stimulus to the human body.

Among them, the event-induced potential refers to the electrical activity of the brain that occurs for a certain period of time after presenting a stimulus that contains specific information. Event-related potentials, unlike other psychophysiological measurement methods such as fMRI and PET, have the advantage of presenting a stimulus and directly observing the process of the stimulus. In other words, the temporal resolution is excellent. Event-related potentials consist of several peaks or components with positive or negative potentials, which are named according to polarity and latency. Is pasted. For example, a peak that appears at about 300 msec after showing a stimulus and has a positive potential is called P300, and a peak having a negative potential at about 400 msec after a stimulus is called an N400. P300 is known to reflect various cognitive functions such as resolving uncertainty, selective attention, stimulus detection, memory scanning, etc.N400 is known to reflect semantic processing, and the late positive potential peaks (P600, P800, etc.) Late positive component (LPC) is known to exhibit specific psychological functions.

The present invention has been made to implement the invention developed in the existing biofeedback, neurofeedback brain training method that seeks an EEG inducing effect by simply presenting the biological signal to the user, the present invention The purpose of this study is to analyze the cognitive learning ability of users such as memorization, memory, numeracy, comprehension, reasoning ability, judgment ability, spatial perception, language ability such as reading, speaking and writing for each item. In addition, the present invention provides a brain analysis / development device using an induced potential to improve a user's ability for each item.

One embodiment of the present invention proposed to solve the above technical problem, the stimulus generating unit for presenting a stimulus; A task presenter for providing a cognitive task; A signal receiver for measuring an induced potential generated by a user in response to a stimulus of the stimulus generator and a cognitive task of the task presenter; A feature point detector extracting a parameter from an induced potential of the signal receiver; An analysis unit for analyzing a cognitive ability of the user using the feature points extracted by the feature point detector; A brain training unit for presenting a brain training task based on the analyzed data; A control unit for controlling the entire system so that the brain can be developed by the triggering potential in response to a user's request; And an output unit for outputting a video signal or an audio signal under the control of the controller.

The stimulus generating unit may be one or two of an image signal, an audio signal, a scent, or an apparatus or tool using the user's hands, feet, or other body to directly or indirectly stimulate at least one or more sensory organs of sight, hearing, smell, and touch. It is characterized by the above.

In addition, the stimulation generating unit is characterized in that consisting of means for generating and supplying an electrical signal, an electromagnetic field, a laser or ultrasonic waves in the body surface including each part of the human body including the scalp.

The signal receiver is a single channel for attaching an electrode in a unipolar or bipolar manner to the electrode placement method of the 10-20 system or frontal lobe, frontal lobe, temporal lobe, parietal lobe, and occipital lobe on the scalp. Or a multi-channel electrode unit, an analog circuit unit for receiving and measuring an induced electric potential generated by the user for the stimulus generated by the stimulus generating unit and applied to the user, and the analog circuit unit. A / D converter unit for converting the analog signal output from the digital signal, a sum unit for summing the digital signal of the A / D converter unit, and the summated signal can be averaged to extract the feature points Characterized in that it consists of an average circuit unit for generating a signal and output to the feature point extraction unit.

The task presenting unit may provide a task capable of measuring cognitive ability including one or more of reading, writing, speaking, listening, spatial perception, numeracy, memory, memory, reasoning, comprehensive thinking, and the like.

The task presentation unit is characterized in that the computer program, a computer game, a ride, a tool, a game device, a means for providing printed materials such as books, video material, audio material.

The feature point using the spontaneous potential or the triggered potential detected by the feature point detector extracts statistical parameters by calculating the sum, mean, standard deviation, and variance of the triggered potentials according to a plurality of stimuli, and detects the extracted statistical parameters. It is desirable to be.

The feature points using the spontaneous potential or induced potential detected by the feature point detector are delta (0-4 Hz), theta (4-8 Hz), alpha (8-12 Hz), SMR Sensory Motor Rhythm (12 to 15 Hz), Beta (15 to 30 Hz), Gamma (gamma) (30 to 50 Hz), etc. One or more of the correlation between the frequency bands, the probability distribution, the frequency of occurrence of a particular waveform, the interhemispheric symmetries of the left and right hemispheres.

A feature point using the spontaneous potential or the induced potential detected by the feature point detector is a peak, a polarity, and a stimulus after the positive potential, the negative potential generated at the EEG-induced potential. It is characterized in that one or more of the latency (latency) representing the time taken for the signal to appear.

The analysis unit uses a spontaneous potential and an induced potential of an electric signal of an EEG to deep sleep, shallow sleep, meditation, concentration, stability, sensitivity, arousal, relaxation, left and right brain balance, left brain activity, right brain activity It is preferable to calculate one or more indexes of the exercise ability index.

The analysis unit is preferably to calculate the cognitive ability, cognitive speed, workload index including reading, writing, speaking, listening, spatial perception, numeracy, memory, memory, analysis, judgment, control.

The brain training unit uses a biofeedback training method using spontaneous brain waves (EEG), a biofeedback training method using induced brain waves (ERP).

The brain training unit may include computer-based imaging, audio signals, computer games, sound stimulation, light stimulation devices, and non-computer-based type of play equipment provided as a peripheral device connected to a computer through a serial port. , Tools, books, printed materials, and the like.

Hereinafter, a brain analysis / development apparatus based on a human induced potential according to the present invention will be described.

1 and 2, a stimulus generator 10 for presenting a stimulus, a task presenter 20 for providing a cognitive task, a stimulus and the task presenter 20 of the stimulus generator 10 A signal receiver 30 for measuring an induced potential generated by a user in response to a cognitive task of the user, a feature point detector 40 for extracting a parameter from the induced potential of the signal receiver 30, and the feature point detector 40 Analysis unit 50 for analyzing the user's cognitive ability using the feature points extracted by the), the brain training unit 60 for presenting the brain training task based on the analyzed data, and the induced potential in response to the user's request The control unit 70 for controlling the entire system so that the brain can be developed by, and the output unit 80 for outputting an image signal or output an audio signal under the control of the control unit 70.

The stimulus generating unit 10 is an apparatus using an image signal, an audio signal, a scent or a user's hands and feet, or other body that directly or indirectly stimulate at least one or more sensory organs among the visual, auditory, olfactory, and tactile senses; Tools and the like.

The stimulus generator 10 is composed of means for generating and supplying an electrical signal, an electromagnetic field, a laser or an ultrasonic wave in a body surface including each part of the human body including the scalp.

The signal receiver 30 is a single channel for attaching an electrode in a unipolar or bipolar manner to various necessary positions of 10-20 system electrodes or frontal lobe, frontal lobe, temporal lobe, parietal lobe, and occipital lobe on the scalp. (single channel) or multi-channel (multi-channel) electrode unit 31, and the induced potential generated by the user with respect to the stimulus generated by the stimulus generating unit 10 applied to the electrode unit 31 The analog circuit unit 32 to receive and measure through the A / D converter unit 33 for converting the analog signal output from the analog circuit unit 32 into a digital signal, and the A / D converter unit 33 An averaging section 34 for summing digital signals, and an average circuit section 35 for generating a signal capable of extracting feature points by averaging the summed signals by the summing section 34 and outputting them to the feature point extracting section 40; It consists of.

The task presenter 20 provides a task capable of measuring cognitive power including one or more of reading, writing, speaking, listening, spatial perception, numeracy, memory, memorization, reasoning, and comprehensive thinking.

The task presentation unit 20 is composed of a computer program, a computer game, a play equipment, a tool, a game device, a means for providing printed materials such as books, video data, and audio data.

A feature point using the spontaneous potential or induced potential detected by the feature point detector 40 extracts a statistical parameter by calculating a sum, average, standard deviation, and variance of the induced potentials according to a plurality of stimuli, and extracts the statistical parameter. Is detected by.

The feature points using the spontaneous potential or induced potential detected by the feature point detection unit 40 are delta (0 to 4 Hz), theta (4 to 8 Hz), and alpha (8 to 8) of the EEG. 12 Hz), SMR (Sensory Motor Rhythm) (12-15 Hz), beta (15-30 Hz), gamma (gamma) (30-50 Hz), etc. Relative ratios, correlations between frequency bands, probability distributions, frequency of occurrence of specific waveforms, interhemispheric symmetries, and the like.

A feature point using the spontaneous potential or the induced potential detected by the feature point detector 40 may be a peak having a positive potential, a negative potential, or a polarity generated at an EEG-induced potential. And latency indicating the time it takes for the signal to appear after stimulus presentation.

The analysis unit 50 uses a spontaneous potential and an induced potential of an electric signal of an EEG, to sleep, to sleep, to meditate, to concentrate, to maintain stability, sensitivity, arousal, relaxation, left and right brain balance, and left brain. Activity, right brain activity, motor performance index, and the like.

The analysis unit 50 calculates cognitive ability, cognitive speed, workload index including reading, writing, speaking, listening, spatial perception, numeracy, memorization, memory, analysis, judgment, and control.

The brain training unit 60 uses a biofeedback training method using spontaneous brain waves (EEG), a biofeedback training method using induced EEG (ERP).

The brain training unit 60 is a computer-based image, audio signal, computer games, sound stimulation, light stimulation device provided as a peripheral device connected to the serial port to the computer as a task for training type that is not based on the computer Playground equipment, books, printed materials, and the like.

Referring to the operation of the brain analysis / development apparatus according to the present invention configured as described above are as follows.

First, the controller 70 determines whether a brain analysis / development device operation request signal has been input by the user. When the brain analysis / development device operation request signal is input as a result of the determination, the controller 70 controls the stimulus generator 10 according to a preset condition. That is, the stimulus generating unit 10 is a device for outputting an image signal or a device for outputting an audio signal or a scent for directing or indirectly stimulating at least one or more sensory organs among the visual, auditory, olfactory, and tactile senses. Or the device using the user's hands and feet or other body, the control unit 70 is capable of brain development to the user by driving a device that is selected according to a user's manipulation or a preset device among the devices. Video signals, audio signals, fragrances or other stimuli may be generated.

In addition, the stimulation generating unit 10 may be composed of devices for generating and supplying an electrical signal, an electromagnetic field, a laser or an ultrasonic wave in the body surface including each part of the human body including the scalp, the control unit 70 is the device Among the preset devices or the user's operation, the selected device is driven to generate an electrical signal, an electromagnetic field, a laser, or an ultrasonic wave to the body surface including each part of the human body including the user's scalp so that the stimulation can be made. .

In addition, the controller 70 controls the task presenter 20 so that a cognitive task can be provided to the user. That is, the task presenter 20 is a task capable of measuring cognitive power including one or more of reading, writing, speaking, listening, spatial perception, mathematical ability, memory, memorization, reasoning, comprehensive thinking, and the like. It is provided by means of providing printed, visual and audio materials such as computer games, rides, tools, game devices and books. In response to the request from the user, the control unit 70 allows the user to provide a cognitive task desired by the user through the task presentation unit 20 through the output unit 80.

The tasks of the task presenter 20 may be selected by a user from a menu-based program presented on a computer monitor according to a function of a brain to be trained and developed, and the selected tasks may be stored in a computer or created by a predetermined algorithm using a computer. It may be presented to the user in the form of a video signal or audio signal, or may be anything in the form of a computer-free type. For example, a method of presenting the task of reading to analyze and develop reading skills may present the user with a textual sentence or word on a computer monitor, or provide a printed reading material such as a book directly. have. In any case, the user's scalp is attached with electrodes of multiple channels capable of measuring spontaneous brain waves and induced brain waves so that the brain waves are measured in real time when the task is presented or performed, and the results are transmitted to the controller 70 of the computer. It should be displayed on the computer monitor.

When the stimulus generating unit 10 and the task presenting unit 20 provide the stimulus and the task for brain development as described above, the control unit 70 causes the signal receiving unit 30 to be generated in response to the stimulus and the task. Allow the potential to be measured.

That is, the signal receiver 30 is composed of an electrode unit 31 and an analog circuit unit 32 again, and the electrode unit 31 is measured in a multi-channel unipolar method or a bipolar method. It is configured to be possible and the attachment position of the electrode is possible for all parts of the scalp, such as the frontal lobe, frontal lobe, temporal lobe, parietal lobe, occipital lobe, and other areas as well as the electrode placement method of the existing 10-20 system.

The analog circuit unit 32 may passively measure a signal from the scalp, such as a conventional spontaneous electroencephalogram (EEG), and induce a potential generated by a user with respect to a stimulus generated by the stimulus generator 10 and applied to the user. Can also be measured. The analog circuit part 32 includes a signal amplifying part, a noise canceling filter, a low pass filter, and the like, for both the spontaneous potential EEG and the induced potential ERP. The circuit part 32 amplifies the induced potential input through the electrode part 31 to a predetermined level, removes noise from the amplified signal, and filters the low-pass filter to output the A / D converter 33. .

The spontaneous potential and the induced potential measured by the analog circuit unit 32 are input to the A / D converter 33 and converted into digital signals. The induced potential converted into a digital signal as described above is summed by the adder 34 and then averaged by the average circuit 35 to be converted into a signal capable of detecting the feature point and input to the feature point detector 40.

When the feature point extraction signal generated by the signal receiver 30 is input to the feature point detector 40, the feature point detector 40 extracts a parameter capable of detecting the feature point from the input signal.

A feature point using the spontaneous potential or induced potential detected by the feature point detector 40 extracts a statistical parameter by calculating a sum, average, standard deviation, and variance of the induced potentials according to a plurality of stimuli, and extracts the statistical parameter. Is detected by.

The characteristic point using the spontaneous potential or the induced potential detected by the feature point detection unit 40 is, first, at the spontaneous potential, using an analog filter or a digital filter for a predetermined time, delta (0 to 4 Hz), theta ( 4 ~ 8Hz), alpha (8 ~ 12Hz), SMR (12 ~ 15Hz), beta (15 ~ 30Hz), gamma (30 ~ 50Hz), etc., divided into frequency components and stored in memory or raw data (Raw Data) Is divided into time epocs, such as 0.5 seconds or 1 second, and frequency components are extracted using a Fast Fourier Transform (FFT) algorithm and stored in the memory 90.

Probability statistical values such as mean, standard deviation, and variance after extracting the amplitude values of the frequency components of the respective bands from the data stored in the memory 90 for a predetermined time and storing each in a separate memory 90 Calculate The relative ratio of each frequency band in one channel, that is, the ratio of alpha and theta, the ratio of alpha and beta, the ratio of SMR and theta, and the ratio of beta and theta, are calculated.

channel 1: Alpha_Left (1) / Theta_Left (1), Alpha_Right (1) / Theta_Right (1)

Alpha_Left (1) / Beta_Left (1), Alpha_Right (1) / Beta_Right (1)

SMR_Left (1) / Theta_Left (1), SMR_Right (1) / Theta_Right (1)

Beta_Left (1) / Theta_Left (1), Beta_Right (1) / Theta_Right (1)

channel 2: Alpha_Left (2) / Theta_Left (2), Alpha_Right (2) / Theta_Right (2)

Alpha_Left (2) / Beta_Left (2), Alpha_Right (2) / Beta_Right (2)

SMR_Left (2) / Theta_Left (2), SMR_Right (2) / Theta_Right (2)

Beta_Left (2) / Theta_Left (2), Beta_Right (2) / Theta_Right (2)

. .

. .

. .

channel N: Alpha_Left (N) / Theta_Left (N), Alpha_Right (N) / Theta_Right (N)

Alpha_Left (N) / Beta_Left (N), Alpha_Right (N) / Beta_Right (N)

SMR_Left (N) / Theta_Left (N), SMR_Right (N) / Theta_Right (N)

Beta_Left (N) / Theta_Left (N), Beta_Right (N) / Theta_Right (N)

Raw EEG data stored in the memory 90 is divided into regular time epocs for each channel, and the correlation on the inter-channel time axis and each band within one channel Find the correlation between the data.

The symmetry between the left hemisphere and the right hemisphere data, or between the anterior and the posterior sphere is obtained from the data divided by each time or frequency band. Symmetry (symmetry) can be divided into voltage symmetry (amplitude symmetry) and phase symmetry (phase symmetry).

Coherence in time axis data of any two channels is obtained from multichannel data.

If x (t) and y (t) are the two EEG data on the time axis, and X (w) and Y (w) are the Fourier transforms of the two data, then code for any frequency w. The coherence Rxy is

Here, H (w) is a transfer function for each EEG frequency band described above,

Ex = | H (w) | ² X (w) ² dw, Ey = | H (w) | ² Y (w) ² dw

In addition, probability distributions, skewness, sharpness, etc. of time and frequency of EG, delta, theta, alpha, SMR, and beta components of each frequency band according to a time epoc of each channel, etc. Calculate

In addition, a feature point using the induced potential detected by the feature point detector 40 may present a peak, polarity, and stimulus having a positive potential and a negative potential generated at an EEG-induced potential. Latency, etc., which represents the time taken for the post-signal to appear.

In the case of the cognitive task to be analyzed or trained, for example, spatial perception, a problem such as a figure drawing to measure the spatial perception is presented to the user in the form of a computer screen or printed print, and then rotated or moved. Give them assignments to find. In order to solve the task, the user uses the functions and regions of the brain related to spatial perception, and at this time, the brain waves generated in the frontal lobe, frontal lobe, parietal lobe, temporal lobe, and occipital lobe are measured through the EEG measurement circuit. The measured EEG data is stored in the memory 90 under the control of the controller 70, and after storing the EEG signals generated by presenting a plurality of stimuli or tasks in the memory 90 and performing a series of tasks, Noise is removed by taking the sum of the EEG data stored in the memory 90 and taking the average.

Brain potential = EEG (voluntary potential) + ERP (cause potential)

Brain potential due to the first stimulus or task = EEG (1) + ERP (1)

+ + +

Brain potential due to second stimulus or task = EEG (2) + ERP (2)

. . .

. . .

+ + +

Brain potential due to Nth stimulus or task = EEG (N) + ERP (N)

{EEG(N) + ERP(N)}Brain potential =

{EEG (N) + ERP (N)}

Here, since EEG is non-periodic, random, and less signal-related than the ERP signal, if it is averaged continuously, only the ERP component is emphasized, and the rest of the components except ERP are reduced. It has the effect of removing noise.

For the averaged induced potential, measure the magnitude of the amplitude to determine the positive and negative peaks, that is, P1 (first positive peak), P2 (second positive peak), and N1 (first negative peak), N2 (second negative peak), and so on. After presentation of the stimulus or task, the time taken to each peak, that is, about 100msec, 200msec, 300msec, 400msec, etc. is measured and N100 (negative 100msec), P300 (positive 300msec), N400 depending on the polarity and the degree of time. (negative 400 msec) and the like are measured.

The feature points are measured or calculated by the number of electrodes attached to the frontal lobe, the frontal lobe, the parietal lobe, the temporal lobe, and the occipital lobe in a bipolar or unipolar manner, and are stored in the memory 90.

When the feature point is detected by the feature point detector 40 as described above, the controller 70 outputs the feature point to the analyzer 50, and the analyzer 50 analyzes the cognitive power of the user using the feature point. do. That is, the analysis unit 50 uses a spontaneous potential and an induced potential of an electric signal of an EEG, to sleep, to sleep, to meditate, to concentrate, to stability, to sensitivity, to arousal, to relaxation, to left and right brain balance, Left brain activity, right brain activity, exercise ability index, etc. are calculated.

And, the analysis unit 50 is a positive potential such as P300, N400, N100, N200 generated after a certain period of time (latency) in accordance with the task presented by the feature point task presentation unit 20 extracted from the spontaneous potential ( Amplitude of the peak with positive potential or negative potential, the time it takes from the start of the assignment to the peak, and after several presentations of the same Cognitive, cognitive speed, and workload based on tasks related to reading, writing, speaking, listening, spatial perception, numeracy, memorization, memory, analysis, judgment, and control by using average, variance, and correlation of biological signals Calculate an index such as

In the analysis unit 50, a task corresponding to the task presenting unit is presented according to the function of the brain to be analyzed, and the user performs a predetermined problem solving format according to the proposed task. By knowing the task presented and solving the problem, the user's brain activates the corresponding area or function. At this time, the induced potential generated according to the function of the activated area can be distinguished according to the kinds of tasks or the degree of brain development of the user who performs the task. Probability statistics, such as variance, will be different. Using these values, you can find an indicator of the user's current status: concentration, arousal, stability, problem solving time, response time, correct answer rate for correct answer, incorrect answer rate for correct answer, and task for correct answer. The area of the brain used during the execution, the utilization of the brain, the load of the brain, etc. are measured or calculated and the database is calculated. The feature points or indices at this point are used as a threshold for training later.

For example, in order to analyze a user's memory ability, a task that can measure memory, that is, a visual information such as numbers, letters, pictures, drawings, and figures, is shown to the user, or sounds such as sounds, music, words, and sentences are heard. By presenting information to the user and finding a solution to the problem, the user's brain activates areas and functions related to memory. From the EEG generated at this time, the above-mentioned feature points, that is, the ratio of each band such as Alpha_Left / Beta_Left and Alpha_Right / Theta_Right, are extracted to provide stability, attention, concentration, and concentration when performing memory tasks. Calculate the same EEG indices and solve problem time, response intensity, brain utilization, and brain load by using the amplitude and time lag of the triggering potential that appears after presentation of memory tasks such as P300, N400, and N100. Calculate the analytical values, such as degree, and calculate the correct and incorrect rates for a given task and store them in memory.

Use 100%, 70%, or 50% of the stored assays as the threshold for training and the reference for comparison with the analysis calculated during training.

Finally, the control unit 70 controls the brain training unit 60 to select a task for brain training based on the data analyzed by the analysis unit 50 or the calculated index to be provided to the user.

In the brain training unit 60, first, after completing the basic exponential analysis as in the analysis unit for the function of the brain to be trained, it presents a task for training similar to the task or problem used in the analysis and is generated. With the EEG, the feature points are extracted and analyzed in the same way as the feature point extractor and the analyzer, and if the value is higher than the threshold value based on the threshold value determined by the analyzer, the proposed training task is presented to the user so that it can be easily solved. By giving feedback to the user in this manner, the user's cognitive system activates and improves the brain function to be trained.

For example, in order to train spatial perceptual power, first, users can present two-dimensional or three-dimensional spatial figures to users through computer screens or printed documents, or give users two-dimensional or three-dimensional tools that are actually created, and perform certain tasks. In this case, the brain recognizes a task through sensory organs such as visual or tactile and attempts to solve a given task, thereby activating the brain regions and functions related to spatial perception ability and changing brain waves accordingly. In this case, the same feature points described above are extracted from the triggered EEG, and when compared with the threshold set by the analysis unit, if the value is higher than a certain threshold, the user is informed through a positive image or sound on the connected computer monitor, and given training. In order to solve the problem easily, the task is newly progressed. When the value is lower than the threshold, it is recommended to present negative images or sounds to the user on the computer monitor and to proceed to the difficulty or problem solving of the task to induce the user's recognition system to generate more positive signals. That's the way.

The present invention is not limited to the above embodiments, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention included in the appended claims.

The present invention having the configuration and operation and the preferred embodiment as described above uses the triggering potential to memorize, memory, numeracy, comprehension, reasoning ability, judgment ability, spatial perception, language ability such as reading, speaking, writing and the like of the user It is effective to analyze cognitive learning ability for each item and to improve the user's ability for each item.

Accordingly, the present invention can provide a brain training method developed from the existing Bio Feedback, Neuro Feedback brain training method.

Claims (13)

In the brain analysis / development device based on human induced potential, A stimulus generator for presenting a stimulus; A task presenter for providing a cognitive task; A signal receiver for measuring an induced potential generated by a user in response to a stimulus of the stimulus generator and a cognitive task of the task presenter; A feature point detector extracting a parameter from an induced potential of the signal receiver; An analysis unit for analyzing a cognitive ability of the user using the feature points extracted by the feature point detector; A brain training unit for presenting a brain training task based on the analyzed data; A memory unit for storing the triggered potential data of the user converted into the digital converter; A control unit for controlling the entire system so that the brain can be developed by the triggering potential in response to a user's request; And An output unit which outputs a video signal or an audio signal under the control of the controller; Brain analysis / development device using the induced potential, characterized in that consisting of. The method of claim 1, wherein the stimulus generating unit, At least one of visual, auditory, olfactory, and tactile visual signals, audio signals, scents, or instruments or tools that use the user's hands and feet or other bodies to directly or indirectly stimulate at least one sensory organ. Brain analysis / development device using induced potentials. The method of claim 1, wherein the stimulus generating unit, Brain analysis / development device using induced potential, characterized in that to generate and supply an electrical signal, an electromagnetic field, a laser or an ultrasonic wave in the body surface including each part of the human body including the scalp. The method of claim 1, wherein the signal receiving unit, Single or multi-channel (10 or 20) system of electrode placement on the scalp or unipolar or bipolar to attach electrodes to the required locations of the frontal, frontal, temporal, parietal and occipital lobes. multi-channel electrode unit, An analog circuit unit configured to receive and measure an induced potential generated by the user through the electrode unit with respect to the stimulus generated by the stimulus generator and applied to the user; An A / D converter unit for converting an analog signal output from the analog circuit unit into a digital signal; An adder for adding up digital signals of the A / D converter; An average circuit unit for generating a signal capable of extracting feature points by averaging the signal summed by the adder and outputting the signal to the feature point extracting unit; Brain analysis / development device using the induced potential, characterized in that consisting of. According to claim 1, The problem presentation unit, Brain analysis using induced potentials that provides the task of measuring cognitive skills including one or more of reading, writing, speaking, listening, spatial perception, numeracy, memory, memorization, reasoning, and comprehensive thinking Enlightenment devices. According to claim 1, The problem presentation unit, Brain analysis / development devices with triggered potentials that can provide computer programs, computer games, rides, tools, game devices, printed materials such as books, video and audio data. The method of claim 1, wherein the feature point using the self-generated potential or the induced potential detected by the feature point detector, A brain analysis / development apparatus using induced potentials, wherein statistical parameters are extracted by calculating the sum, mean, standard deviation, and variance of induced potentials according to multiple stimuli, and detected by the extracted statistical parameters. The method of claim 7, wherein the feature point using the spontaneous potential or the induced potential detected by the feature point detection unit, Delta (0 ~ 4Hz), Theta (4 ~ 8Hz), Alpha (8 ~ 12Hz), Sensory Motor Rhythm (SMR) (12-15Hz), Beta (15) 30 Hz), gamma (30-50 Hz), amplitude, mean, standard deviation and relative ratio of each frequency band, correlation between each frequency band, coherence, Brain analysis / development devices using induced potentials characterized by one or more of probability distribution, frequency of occurrence of specific waveforms, interhemispheric symmetries The method of claim 8, wherein the feature point using the self-generating potential or the induced potential detected by the feature point detector, One of the positive potential, the peak with negative potential, the polarity, and the latency that represents the time it takes for a signal to appear after stimulation. Brain analysis / development device using induced potentials, characterized in that more than one. The method of claim 1, wherein the analysis unit, One of deep sleep, shallow sleep, meditation, concentration, stability, sensitivity, arousal, relaxation, left and right brain balance, left brain activity, right brain activity, and exercise ability index Or a brain analysis / development device using induced potentials, characterized in that calculating two or more indices. The method of claim 10, wherein the analysis unit, Brain analysis using induced potentials, which includes reading, writing, speaking, listening, spatial perception, numeracy, memorization, memory, analytic, judgment, control including cognitive ability, cognitive speed, and workload index Enlightenment devices. The method of claim 1, wherein the brain training unit, Brain analysis / development apparatus using induced potential, characterized in that using the biofeedback training method using the spontaneous EEG (EEG), the biofeedback training method using the induced EEG (ERP). The method of claim 12, wherein the brain training unit, Tasks for training include computer-based imaging, audio signals, computer games, sound stimuli provided by a serial port connected to the computer, light stimulation devices, non-computer-based rides, tools, books Brain analysis / development device using the induced potential, characterized in that it comprises a printed matter.

Images