CN1166343C - Event relating potential lie detector - Google Patents
Event relating potential lie detector Download PDFInfo
- Publication number
- CN1166343C CN1166343C CNB011042400A CN01104240A CN1166343C CN 1166343 C CN1166343 C CN 1166343C CN B011042400 A CNB011042400 A CN B011042400A CN 01104240 A CN01104240 A CN 01104240A CN 1166343 C CN1166343 C CN 1166343C
- Authority
- CN
- China
- Prior art keywords
- electrode
- stimulation
- experimenter
- lie
- multimedia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/164—Lie detection
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hospice & Palliative Care (AREA)
- Pathology (AREA)
- Developmental Disabilities (AREA)
- Psychiatry (AREA)
- Psychology (AREA)
- Social Psychology (AREA)
- Physics & Mathematics (AREA)
- Child & Adolescent Psychology (AREA)
- Biophysics (AREA)
- Educational Technology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The present invention discloses an event-related lie detector which relates to a device for public security departments to handle cases and is suitable for testing the authenticity of the statement of case parties. The lie detector requires an examinee to make oral answer or to answer by pressing keys while the audio-visual strong stimulation generated by photos, audio-visual multi-mediums, etc. is used, and carries out the real-time collection of an electroencephalogram of the examinee's head electrode potential. The lie detector comprises a basic computer, a device composed of a test screen and a test audio, a response microphone, brain wave electrodes and a preamplifier. The lie detector has the advantage that the response of the examinee is collected by the brain wave electrodes without psychological interference so that the lie detector has the accuracy of lie detection which can reach 85% to 100%, and convenient operation.
Description
The present invention relates to the instrument that public security department handles a case, be applicable to test crime client confession honesty whether a lie detector.
A lie detector in the past, for example, popular both at home and abroad " poIygraph " a lie detector, the experimenter will accept shrink and preestablish the language enquirement relevant and irrelevant with merit, the psychological strong stimulation of material evidences such as literal enquirement and picture, photo, material object.Meanwhile, adopt the instrument and meter of conventional medicine body, observe the variation of the experimenter's physiological parameter such as blood pressure, breathing, skin resistance synchronously.When relating to when removing the lie problem, client's psychology is uneasy, can cause the variation of physiological parameter, for example blood pressure and respiration wave and because of hurried time degradation of perspiration skin resistance.These mainly show the unusual of neuro function; Judge that in view of the above client's confession has or not the lie feelings.
Yet, the especially wily old fox have seen much of life person of experimenter, psychology that can draw oneself up wittingly and physiological process, the conclude of lie detector reliability makes us doubting, and false positive rate reaches as high as 64%.At above-mentioned defective, the present invention has provided brand-new detect a lie notion and technology.
The objective of the invention is to use audiovisual strong stimulations such as photo, audio-video many coal bodies, require the candidate with button or oral replying simultaneously, and gather a lie detector of its head and incident related electrode current potential electroencephalogram in real time.
The present invention is achieved in that
A kind of event relating potential lie detector comprises computer, it is characterized in that also comprising tried screen and stereo set, answer button, should mike and E.E.G electrode and preamplifier; Answer button, reply mike and directly link to each other with main frame, the E.E.G electrode links to each other with main frame through preamplifier again, and main frame is exported and tried screen and link to each other with stereo set.
Described preamplifier comprises amplifier and the A/D converter that is linked in sequence; Amplifier input terminal connects experimenter's E.E.G electrode, and the A/D converter outfan links to each other with main frame.
Described answer button is exactly the keyboard function key of extending, and links to each other with main frame.
Described plate of replying mike connection main frame carries or inserts on the sound card of notch.
Describedly tried screen and stereo set comprises terminal monitor and active loundspeakers loudspeaker.
In conjunction with the accompanying drawings, further specify its invention structure and principle.
Fig. 1 is a sketch map of the present invention;
Fig. 2 is the prior art flow chart;
Fig. 3 is a flow chart of the present invention;
Fig. 4 is an E.E.G electrode arrangement bitmap;
Fig. 5 is a structure chart of the present invention.
Among the figure:
1, experimenter 2, tried screen and stereo set
3, computer 4, supervision and layout backstage
5, mike 6, answer button
7, electroencephalogram acquisition electrode
Fig. 1 is a sketch map of the present invention, and shrink 4 by monitor and many coal bodies of keyboard layout strong stimulation file, is used to monitor reactions such as replying of experimenter on the backstage simultaneously.The experimenter is subjected to strong stimulations such as photo such as material evidence and crime place and audio-video many coal bodies before screen 2, do with a button 6 that button is replied and do oral replying before mike 5, extracts experimenter's electroencephalogram data by subject's head electrode 7 simultaneously.Computer 3 had both been handled layout, making and the broadcast of many media programs of strong stimulation program, handled the data of oral answer, button feedback signal and electroencephalogram that the experimenter replys again, made experimenter's honesty whether judgement score at last.
Many coal bodies strong stimulation file content is gone to the spot by the investigator in advance, uses digital camera, and general camera and camcorder are adopted bat; Use digital camera, camcorder directly to link to each other with computer and adopt the content that bat comes with input, cloudy sheet of general camera picture shot or positive are imported by scanner scanning normal direction computer.
Shrink is divided into target stimulation file (being related stimulus) and non-target stimulation file (indifferent stimulus) at computer background 4 adopting the bat content, becomes the strong stimulation file according to the merit layout.
At the specific part of experimenter's head, by putting two kinds of electrodes.A kind of is the C of relevant forward potential reaction with incident
zElectrode, a kind of is the P of relevant negative sense potentiometric response with incident
zElectrode, about reference electrode, its 23 electrode positions.The former is C
zThe E.E.G positive wave amplitude wave current potential P300 that collection event is relevant, latter P
zGather target stimulation and start the target current potential N400 (referring to " the neuroelectricity physiology of big higher brain function ", Chinese science publishing house published Beijing in 1998) that whether mates statement justice field.P300 forward wave amplitude wave face is analyzed in conjunction with N400 negative wave amplitude wave face, can judge the lie feelings.The present invention is labeled as the P300/N400 a lie detector, or is called for short the ERP a lie detector.
The operation of detecting a lie:
1), provides to the experimenter and instruct speech;
2), to the experimenter by putting the brain wave electrode;
3), play many coal bodies audio video document of target stimulation and non-target stimulation, and make the experimenter with button and oral immediate answer;
4), computer is handled the E.E.G data of real-time collection.
5), computer provides lie feelings result of determination.
After the experimenter was subjected to many coal bodies strong stimulation, brain was inevitable movable, the instinct fluctuation of performance electroencephalogram.This fluctuation is almost irrelevant with mental control.Therefore, a lie detector credibility of the present invention is greatly improved.This also is the brand-new improvement to the notion and the technology of popular former " Polygragh a lie detector ".
It is Sution in the related potential E.E.G of the nineteen sixty-five invention method of detecting a lie that P300 detects a lie.The electrode of detecting a lie is placed in the head position, and with the record experimenter's E.E.G, reference electrode is clipped on the ears.The stimulus sequence that strong stimulation is made up of 2 incidents at least requires the experimenter with counting or be target stimulation with the stimulation that operations such as key mode are replied, and does not require the non-target stimulation that is that operation replys.
Stimulate to responding from incident, after the E.E.G electrode potential changed about about 1000ms, this reflection people was to the initial processing of stimulus information, and artificial conscious content undopes; The people occur conscious content approximately needs about 3 seconds after.The E.E.G electrode potential that occurs within the 300ms after being upset is the positive of positive amplitude corrugated.This positive method of detecting a lie of judging is called for short P300 and detects a lie.
It is the method for detecting a lie of doing stimulation with predefined statement that N400 detects a lie.The statement content is relevant with case, is divided into the startup stimulation of preamble and the target stimulation of actual content key word.The former statement justice field occurs, and semanteme appears in the latter.When semantic field and semanteme do not match, the guided wave amplitude wave face of experimenter's E.E.G electrode potential positive.For example " I go into the street and buy book." see the variation of E.E.G when becoming " I go into the street buy defeated " statement." I go into the street and buy " stimulates for starting before the stain separatrix, and " book " or " failing " after the stain separatrix is target stimulation.
Start stimulating each word of S1 to show 200-300ms, and with red light or whistling, have 500-750ms blank at interval subsequently, next is target stimulation S2, the big pause 3-10 after the S2 be second whole statement at interval.
Preorder stimulates no change, the just keyword of target stimulation of conversion, and it is divided into different antonym in unison, allograph in unison, allophone synonym and special-shaped synonym etc.
The P300/N400 a lie detector of our invention (being called for short the ERP a lie detector), different with the Polygraph a lie detector, the different flow processs of detecting a lie is arranged.Fig. 3 is an ERP a lie detector flow chart.Fig. 2 is a Polygraph a lie detector flow chart.
It is that the stream electrode is provided with method that the E.E.G electrode of the P300/N400 a lie detector method of laying is called for short 10/20, also claims Jasper method.Earlier the d branch from the nasion to pillow back tuberosity subtracts 10 five equilibriums head, and behind the nasion, porus acusticus externus, pillow the loop wire of tuberosity by making starting point and be divided into 12 five equilibriums with the intersection point of d; Being the center of circle with center, top on the head again, is that radius is drawn concentric circular with 1/4 d length.3 pairs of lines of this concentric circular and d and loop wire left-right symmetric point intersect, and draw 10 intersection points.8 intersection points, 12 loop wire Along ents, vertex and left and right sides ears altogether 23 electrode potentials.Electroencephalogram is formed in the variation of these 23 electrode potentials, or is called for short mind map.Referring to Fig. 4
Fig. 5 is a structure chart of the present invention.The present invention includes main frame (see Fig. 13,4), tried the equipment (see Fig. 1 2) of screen and sound equipment, answer button (see Fig. 1 6) is replied mike (see Fig. 1 5), and E.E.G electrode and preamplifier (see Fig. 1 7);
Answer button, reply mike and directly link to each other with main frame, the E.E.G electrode links to each other with main frame through preamplifier, the output of main frame with tried screen and linked to each other with stereo set.
Preamplifier comprises amplifier and the A/D converter (A/D) that is linked in sequence, and amplifier in connects experimenter's E.E.G electrode, and an amplifier connects a plurality of electrodes and carries out acquisition time; A/D output connects main frame.
The specification of preamplifier is:
1) input short circuit noise: less than 0.7 μ V peak-to-peak value.
2) input impedance: 200M Ω.
3) high pass filter: 0.01Hz, 0.1Hz, 0.3Hz, fourth gear is adjustable altogether for 1Hz.
4) low pass filter: 30,100,300,1000, totally five grades of 10000Hz.
5) 50Hz trap :-60dB (± 0.5Hz)
6) gain: 1000,2000,10000,50000 common fourth gear are adjustable.
7) common mode rejection ratio: be not less than 100dB.
8) sample rate: the highest 2000 times/second.
9) return-to-zero circuit: have.
10) electrode is selected: unipolar lead (left and right sides ear links to each other, and left and right sides ear separates, and left and right sides ear intersects).
11) baseline adjusted: automatically.
12) contact resistance detects: 1k Ω-100k Ω.
13) other requirements: 16 passages, interchannel are crosstalked and are suppressed 100dB.
Preamplifier amplifies and carries out mould/number conversion to the bioelectrical signals that the E.E.G electrode of head extracts; The digital signal of changing out is given main frame.
Answer button is the extension of keyboard function key, is connected in main frame.
On the sound card on the plate of mike connection motherboard carries or insert in the main frame board slot.The speech simulation signal becomes digital signal to enter computer again in the sound card internal conversion.
Tried screen and stereo set and comprise terminal monitor (being screen) and active loundspeakers loudspeaker, they directly link the outfan of computer.
Computer hardware system comprises personal computer (more than the PIII), general camera, digital camera, camcorder, scanner and printer; Computer software comprises Windos98, photoshop, pouerpocivt, office97 and " many coal bodies of the Scientific2000 editor and the playout software " and " P300/N400 detect a lie analysis software " of design and programming voluntarily.
Advantage of the present invention:
1) psychological interference has been avoided in the present invention's reaction of the wave electrode collection experimenter of requiring mental skill, and the accuracy of detecting a lie can Up to 85-100%;
2) easy to operate, equipment digitalized;
3) software such as " many coal bodies of Scientific2000 editor and broadcast " and " P300/N400 detect a lie analysis " Can upgrade, and not increase customer investment.
The present invention and conventional P oIygraph a lie detector Performance Ratio are listed as follows:
Item compared ERP a lie detector PoIygraph a lie detector
The testing stimulus photo shows the oral inquiry related content of related content
Judge biotic potential psychology and the physiological change of index brain
ERP:P300/N400) (blood pressure, breathing, skin resistance etc.)
Psychology has index influence nothing
Experimenter's interference experiment is atomic bigger
Positive rate 85-100% 37-95%
False negative rate 0-15% 26-31%
False positive rate 0% 28-64%
Event relating potential lie detector is given a name by " ERP a lie detector ", and the bioelectric potential that its E.E.G electrode is gathered is called for short ERP:P300/N400 brain bioelectric potential.
Claims (5)
1, a kind of event related potential lie detecting method comprises:
The tester by monitor and keyboard layout multimedia strong stimulation file, is used to monitor the step of experimenter's responsing reaction on the backstage simultaneously;
The experimenter is subjected to the multimedia strong stimulation before screen, do with a button that button is replied and do oral step of replying before mike;
In above-mentioned answering, extract the step of experimenter's electroencephalogram data simultaneously by the subject's head electrode;
The bioelectrical signals that the E.E.G electrode extracts amplifies by amplifier, and the input computer carries out the step of analytical judgment;
It is characterized in that this method of detecting a lie further comprises:
Multimedia strong stimulation file layout is divided into target stimulation file and non-target stimulation file to the tester on the backstage, and predefined statement is divided into the startup stimulation statement justice field of preamble and the target stimulation semanteme of actual content key word, the experimenter is imposed the step of stimulation by multimedia;
Lay two kinds of electrodes at experimenter's head, a kind of is the Cz electrode of relevant forward potential reaction with incident, another kind is the Pz electrode of relevant negative sense potentiometric response with incident, the E.E.G positive wave amplitude wave current potential P300 that Cz electrode collection event is relevant, Pz electrode gather target stimulation and start the target current potential N400 whether mate statement justice field;
P300 forward wave amplitude wave face is carried out the step of analytical judgment in conjunction with N400 negative wave amplitude wave face;
When the startup of multimedia display stimulates semantic field and target stimulation semanteme not to match, change the positive of definite conclude of lie detector according to the guided wave amplitude wave face of experimenter's E.E.G electrode potential.
2, according to the method for claim 1, it is characterized in that:
Start to stimulate no change in stimulation step, the just keyword of target stimulation of conversion is divided into the different antonym in unison of Chinese, in unison allograph, allophone synonym and special-shaped synonym.
3, a kind of event relating potential lie detector comprises:
The computer that is used for tester's layout multimedia strong stimulation file and supervision experimenter responsing reaction;
Check the experimenter be subjected to the multimedia strong stimulation make reply tried screen, stereo set, answer button, mike;
Extract the E.E.G electrode of experimenter's electroencephalogram data in answering;
It is characterized in that described a lie detector further comprises:
Multimedia stimulates water conservancy diversion; This water conservancy diversion can make the tester, and the multimedia strong stimulation file layout is divided into target stimulation file and non-target stimulation file on the backstage, and predefined statement is divided into the startup stimulation statement justice field of preamble and the target stimulation semanteme of actual content key word, the experimenter is imposed stimulation;
Be placed in two kinds of electrodes of head, a kind of is the Cz electrode of relevant forward potential reaction with incident, another kind is the Pz electrode of relevant negative sense potentiometric response with incident, the Cz electrode can be used for the relevant E.E.G positive wave amplitude wave current potential P300 of collection event, and the Pz electrode can be used for gathering target stimulation and starts the target current potential N400 whether mate statement justice field;
Be used for preamplifier that E.E.G electrode extraction data is amplified;
Can measure the computer that calculates, analyzes and judge to P300 forward wave amplitude wave face and N400 negative wave amplitude wave face.
4, according to a lie detector of claim 3, it is characterized in that answer button, reply mike and directly link to each other with main frame, the E.E.G electrode links to each other with main frame through preamplifier again, tried screen and link to each other with main frame output with stereo set, preamplifier comprises amplifier and the A/D converter that is linked in sequence; Amplifier comprises that input connects experimenter's E.E.G electrode, and the outfan of A/D converter links to each other with main frame.
5, according to a lie detector of claim 3, it is characterized in that described answer button is exactly the keyboard function key that extends, link to each other with main frame, the plate that mike connects main frame carries or inserts on the sound card of notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011042400A CN1166343C (en) | 2001-02-27 | 2001-02-27 | Event relating potential lie detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011042400A CN1166343C (en) | 2001-02-27 | 2001-02-27 | Event relating potential lie detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1314130A CN1314130A (en) | 2001-09-26 |
| CN1166343C true CN1166343C (en) | 2004-09-15 |
Family
ID=4653782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011042400A Expired - Lifetime CN1166343C (en) | 2001-02-27 | 2001-02-27 | Event relating potential lie detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1166343C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323637C (en) * | 2003-01-27 | 2007-07-04 | 周曙 | General system for testing behaviors of nerves |
| JP3991065B2 (en) * | 2004-11-10 | 2007-10-17 | 松下電器産業株式会社 | Misoperation detection device and apparatus having the same, misoperation detection method, and apparatus evaluation method |
| CN101589358B (en) * | 2006-11-15 | 2012-05-16 | 松下电器产业株式会社 | Adjusting device for brain wave identification method, and adjusting method thereof |
| CN101491442B (en) * | 2009-03-17 | 2011-04-06 | 沈政浩 | Affair-relative light signal collection analysis system |
| CN103190902B (en) * | 2012-01-06 | 2017-08-04 | 无极技术公司 | Shown using frequency of brain wave data and interactive multimedia determining, monitor and analyzing personal response variable method and system |
| CN105249963B (en) * | 2015-11-16 | 2018-02-13 | 陕西师范大学 | N400 Evoked ptential lie detecting methods based on Sample Entropy |
| CN105852885B (en) * | 2016-03-23 | 2018-08-24 | 陕西师范大学 | Based on the N400 Evoked ptential lie detecting methods for improving the learning machine that transfinites |
| CN105769221B (en) * | 2016-04-05 | 2018-06-12 | 陕西师范大学 | Brain electricity lie detecting method based on Lyapunov indexes and correlation dimension |
| CN110192877A (en) * | 2019-05-24 | 2019-09-03 | 中南民族大学 | Based on the lie detecting method for more leading the EEG signals degree of bias |
| CN110192880A (en) * | 2019-05-24 | 2019-09-03 | 中南民族大学 | Based on the lie detecting method for more leading EEG signals Granger Causality |
-
2001
- 2001-02-27 CN CNB011042400A patent/CN1166343C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1314130A (en) | 2001-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lewis et al. | Distinct cortical pathways for processing tool versus animal sounds | |
| CN1166343C (en) | Event relating potential lie detector | |
| US5113870A (en) | Method and apparatus for the analysis, display and classification of event related potentials by interpretation of P3 responses | |
| US4932416A (en) | Method for the analysis, display and classification of event related potentials by interpretation of P3 responses | |
| CN1279871C (en) | Diagnostic system and portable telephone device | |
| Cohen et al. | Acoustic features of rhesus vocalizations and their representation in the ventrolateral prefrontal cortex | |
| CN106407733A (en) | Depression risk screening system and method based on virtual reality scene electroencephalogram signal | |
| US20180146879A9 (en) | Biopotential Waveform Data Fusion Analysis and Classification Method | |
| Hartelius et al. | Long-term phonatory instability in individuals with multiple sclerosis | |
| CN112353391A (en) | Electroencephalogram signal-based method and device for recognizing sound quality in automobile | |
| CN108305680B (en) | Intelligent Parkinson's disease auxiliary diagnosis method and device based on multivariate biological characteristics | |
| Niu et al. | Research on genetic algorithm based on emotion recognition using physiological signals | |
| CN101052346A (en) | Neural incident process | |
| CN108143412B (en) | Control method, device and system for electroencephalogram emotion analysis of children | |
| CN1119120C (en) | Audibility measurement instrument emitting sound to ear and its test method | |
| Kim et al. | Hearing foreign voices: does knowing what is said affect visual-masked-speech detection? | |
| CN115659207A (en) | Electroencephalogram emotion recognition method and system | |
| Scheumann et al. | Human novelty response to emotional animal vocalizations: effects of phylogeny and familiarity | |
| TW201408259A (en) | Emotional brain electric wave imaging method | |
| Gelfer | An AER study of stop-consonant discrimination | |
| CN115620751A (en) | Electroencephalogram signal prediction method based on speaker voice induction | |
| Rao et al. | Investigating influences of medial olivocochlear efferent system on central auditory processing and listening in noise: a behavioral and event-related potential study | |
| Llanos et al. | The emergence of idiosyncratic patterns in the frequency-following response during the first year of life | |
| Islam et al. | Auditory Evoked Potential (AEP) Based Brain-Computer Interface (BCI) Technology: A Short Review | |
| Li et al. | Esaa: An Eeg-Speech Auditory Attention Detection Database |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20040915 |