BRAIN FINGER PRINT TECHNOLOGY
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anushalucky
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#1
22-12-2009, 08:37 PM


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i want a detail information about BRAIN FINGER PRINT TECHNOLOGY please send quickly
please send detail information about BRAIN FINGER PRINT TECHNOLOGY to anoosh.lucky@gmail.com
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ajukrishnan
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#2
24-12-2009, 01:17 PM

Brain Fingerprinting was invented by Lawrence Farwell. It is a forensic science technique that determines whether specific information is stored in a person's brain by measuring electrical brainwave responses to words, pictures or phrases, which are presented on a computer screen. The theory is that the brain processes known, relevant information differently from the way it processes unknown or irrelevant information . The brainâ„¢s processing of known information, for example, the details of a crime stored in the brain, is revealed by a specific pattern in the EEG(electroencephalogram). Farwell discovered the MERMER ("Memory and Encoding Related Multifaceted Electroencephalographic Response"), which includes the P300 along with some additional features and provides a higher level of accuracy.

The Methdology
The technique uses the fact that an electrical signal known as P300 is emitted from an individual's brain beginning approximately 300 milliseconds after the brain is confronted with a stimulus of special significance, e.g. a rare vs. a common stimulus or a stimulus the subject is asked to count. The application of this in brain fingerprinting is to detect the P300 as a response to stimuli related to the crime or other investigated situation,like,victim's face, a murder weapon, or knowledge of the internal workings of a terrorist cell. the system does not require the subject to issue verbal responses to questions or stimuli, because it is based on EEG signals.

procedure used:
1)The person to be tested wears a special headband with electronic sensors that measure the EEG from several locations on the skull.
2)The person is shown stimuli consisting of words, phrases, or pictures presented on a computer screen which are of three types:
a)irrelevant stimuli that are irrelevant to the investigated situation and to the test subject
b)target stimuli that are relevant to the investigated situation and are known to the subject.
c)probe stimuli that are relevant to the investigated situation and that the subject denies knowing.

brain fingerprinting does not depend on the emotions of the subject, nor is it affected by emotional responses , since brain fingerprinting uses cognitive brain responses.

Difference from polygraph
polygraph measures emotion-based physiological signals such as heart rate, sweating, and blood pressure but it measures the personâ„¢s brain response to relevant words, phrases, or pictures to detect whether or not the relevant information is stored in the personâ„¢s brain.Brain fingerprinting also does not attempt to determine whether or not the subject is lying or telling the truth.

Limitations
Brain fingerprinting detects information-processing brain responses that reveal what information is stored in the subjectâ„¢s brain. It does not detect how that information got there.If the suspect knows everything that the investigators know about the crime for some original reason, then the test cannot be applied.

Case of an eye witness: the fact that witness knows details about the crime would not be incriminating. There would be no reason to conduct a test, because the resulting response would simply show that the suspect knew the details about the crime knowledge which he already admits to have gained gained at the crime scene.

Another situation where brain fingerprinting is not applicable is one where the authorities have no information about what crime may have taken place. It is also not appplicable in in general pre-employment or employee screening wherein any number of undesirable activities or intentions may be relevant. Brain fingerprinting does not determine whether a suspect is guilty or innocent of a crime.Before a brain fingerprinting test can be conducted, an investigator must discover relevant information about the crime or investigated situation.

More details can be found here:
en.wikipediawiki/Brain_fingerprinting#Technique
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#3
12-04-2010, 08:34 PM

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for getting all information about BRAIN FINGER PRINT TECHNOLOGY
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#4
01-10-2010, 12:15 PM


.doc   New Wordpad Document (2).doc (Size: 5.01 KB / Downloads: 241)

Brain Fingerprinting Testing Detects Information



abstract

Brain Fingerprinting testing detects information stored in the human brain. A specific, electrical brain wave response, known as a P300, is emitted by the brain within a fraction of a second when an individual recognizes and processes an incoming stimulus that is significant or noteworthy. When an irrelevant stimulus is seen, it is seen as being insignificant and not noteworthy and a P300 is not emitted. The P300 electrical brain wave response is widely known and accepted in the scientific community. There have been hundreds of studies conducted and articles published on it over the past thirty years. In his research on the P300 response, Dr. Farwell discovered that the P300 was one aspect of a larger brain-wave response that he named a MERMER® (memory and encoding related multifaceted electroencephalographic response). The MERMER comprises a P300 response, occurring 300 to 800 ms after the stimulus, and additional patterns occurring more than 800 ms after the stimulus, providing even more accurate results.







.doc   New Wordpad Document (2).doc (Size: 5.01 KB / Downloads: 241)
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computer science crazy
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#5
03-11-2010, 05:53 PM

detailed seminar and presentation report and presentation of Brain finger printing technology spread in these three pages topicideashow-to-brain-finger-printing-technology--2715
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#6
18-12-2010, 10:07 AM


.ppt   BFP final presentation.ppt (Size: 803 KB / Downloads: 208)
Presented by: LAKSHMY.J


Brain Fingerprinting Technology



TOPIC OUTLINE
1. Introduction
2. Working Principle
3. Scientific Procedure
4. Equipments and Technology
5. Algorithm used
6. EEG measurement
7. Applications
8. Disadvantages
9. Conclusions
10. References


INTRODUCTION
Invented by Dr. Farwell

Proved successful over 170 cases

Computer based technique that measures recognition of familiar stimuli by measuring electrical brain wave responses to words, phrases, or pictures that are presented on a computer screen

WORKING PRINCIPLE

Entire system under computer control includes
Presentation of the stimuli
Recording of electrical brain activity
Determination of "information present" or "information absent,"
Mathematical data analysis algorithm that compares the responses
statistical confidence level for the determination.

When someone commits a crime, his brain records it in the memory .

BFP seeks to reveals that memory, by showing the suspect, evidences taken from the crime scene.

A head band with EEG sensors is placed on the subject which digitizes brain wave activity and feeds it to the computer.
The computer records the brain waves produced in response to what the subject sees which are called as Event Related Potentials (ERP)

On seeing familiar info p300,a positive electric voltage is elicited for 300ms by the brain which is recorded as a wave form.

P300 along with along with other electrically negative components constitutes the MERMER (Memory and Encoding Related Multifaceted Electroencephalographic Response)
By analyzing MERMER the pattern of waves using suitable computer based algorithm, it can be determined if the subject is recognizing what he is seeing.

Accuracy lies in the ability to differentiate p300 brain wave, before the suspect has time to affect the output.

SCIENTIFIC PROCEDURE
Stimulus appears for a fraction of a second when they are presented on a video monitor under computer control.

Three types of stimuli are presented:
I ) Targets,
2 ) Irrelevants, and
3 ) probes.

TARGETS stimuli
Info known to suspect about the crime
Elicits a MERMER

IRRELEVANTS stimuli
Info not related to the crime
Do not elicit a MERMER

PROBES stimuli
Info relevant to the situation under investigation that only the perpetrators knows
Elicits a MERMER
Stimuli consists of 1/6 targets, 1/6 probes and 2/3 irrelevents.

Comparing “Probe” with the “Target” determines if the subject recognizes the Probes

Comparing the “Probe” with the “Irrelevant” determines if the subject does not recognizes the Probes.
EQUIPMENTS AND TECHNOLOGY
The BFP system comprises
A personal computer
A data acquisition board
A graphics card for driving two monitors from one PC
A 4 channel EEG amplifier system
Software for data acquisition and analysis
Electrodes


ALGORITHM USED
Nonparametric statistical method called Bootstrapping compares the responses produced by the stimuli.

It deduces the distribution of a statistic from a sample

Determines how reliable that statistic is as a measure for the population.


EEG MEASUREMENT
Functional activities emerging from the brain is reflected by the variation of the surface potential distribution on the scalp.

When a stimulus appears, the EEG breaks into a series of larger peaks and troughs which constitutes the ERP

Voltage difference between a pair of electrodes are measured, filtered, amplified and recorded for analysis.

APPLICATIONS
National Security
Aids in determining who has participated in terrorist acts, directly or indirectly.
Aids in identifying trained terrorists with the potential to commit future terrorist acts, even if they are in a “sleeper” cell and have not been active for years.

To test job applicants on the falsification of an application.

Medical Field
Helps in detecting diseases such as Alzheimer's
Evaluation of the effectiveness of the treatment

Helps in Identifying false-witnesses

Successfully predict learning difficulties
Advertising area
What specific information do people retain from advertising
which element have more impact
Which type of media is most effective
What commercial is most effective for a single product
Criminal Justice
Improves speed and accuracy
Reduces time and cost

DISADVANTAGES
Not applicable for general screening.

It does not indicate intent of the crime.

Takes a fair amount of time to set up and conduct properly .

Difficult to distinguish the criminal and a witness who saw all the criminal activity happen.


CONSLUSIONS
BFP is a new technology which provides high rate accuracy results

Introduction of this technology, decreases the crime rates in the future to a considerate extend.

It is fully developed and is available for application in the field.






































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thejaswis
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#7
10-01-2011, 04:09 PM

please send ieee pdf for brain finger printing
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thejaswis
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#8
10-01-2011, 04:15 PM

please send brain finger printing in only pdf format in ieee
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sunujamenon
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#9
02-08-2011, 02:53 PM

sir
i would like to see the pdf or the details of brain fingerprinting .The details are necessary as though i want to present a seminar and presentation paper on this topic.
Waiting to hear u from soon

thanking you
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#10
03-08-2011, 10:14 AM

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27-02-2012, 10:41 AM

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#12
03-08-2012, 10:54 AM

BRAIN FINGERPRINTING


.docx   1BRAIN FINGERPRINTING.docx (Size: 58.09 KB / Downloads: 21)

HISTORY

Brain fingerprinting was invented by Lawrence Farwell. The theory is that the brain processes known and relevant information differently from the way it processes unknown or irrelevant information (Farwell & Donchin 1991). The brain’s processing of known information, such as the details of a crime stored in the brain, is revealed by a specific pattern in the EEG (electroencephalograph) (Farwell & Smith 2001, Farwell 1994). Farwell’s brain fingerprinting originally used the well known P300 brain response to detect the brain’s recognition of the known information (Farwell & Donchin 1986, 1991; Farwell 1995a). Later Farwell discovered the MERMER ("Memory and Encoding Related Multifaceted Electroencephalographic Response"), which includes the P300 and additional features and is reported to provide a higher level of accuracy than the P300 alone (Farwell & Smith 2001, Farwell 1994, Farwell 1995b). In peer-reviewed publications Farwell and colleagues report over 99% accuracy in laboratory research (Farwell & Donchin 1991, Farwell & Richardson 2006) and real-life field applications (Farwell & Smith 2001, Farwell et al. 2006). In independent research William Iacono and others who followed identical or similar scientific protocols to Farwell’s have reported a similar high level of accuracy (e.g., Allen & Iacono 1997).

Technique

The technique uses the well known fact that an electrical signal known as P300 is emitted from an individual's brain beginning approximately 300 milliseconds after it is confronted with a stimulus of special significance, e.g. a rare vs. a common stimulus or a stimulus the subject is asked to count (see P300, Gaillard and Ritter 1983, and Picton 1988 for a comprehensive discussion of this effect). The application of this in brain fingerprinting is to detect the P300 as a response to stimuli related to the crime or other investigated situation, e.g., a murder weapon, victim's face, or knowledge of the internal workings of a terrorist cell (Farwell 1992a, Farwell & Donchin 1991, Harrington v. State 2001). Because it is based on EEG signals, the system does not require the subject to issue verbal responses to questions or stimuli.

Background and terminology

"Brain fingerprinting" is a computer-based test that is designed to discover, document, and provide evidence of guilty knowledge regarding crimes, and to identify individuals with a specific training or expertise such as members of dormant terrorist cells or bomb makers. It has also been used to evaluate brain functioning as a means of early detection of Alzheimer’s and other cognitively degenerative diseases, and to evaluate the effectiveness of advertising by measuring brain responses.
The technique is described in Dr. Farwell's paper “Using Brain MERMER Testing to Detect Concealed Knowledge Despite Efforts to Conceal”, published in the Journal of Forensic Sciences in 2001 by Dr. Farwell and FBI Supervisory Special Agent Sharon Smith of the FBI (Farwell & Smith 2001).

Current uses and research

Brain Fingerprinting has two primary applications: 1) detecting the record of a specific crime, terrorist act, or incident stored in the brain (Farwell & Smith 2001, Dalbey 1999), and 2) detecting a specific type of knowledge, expertise, or training, such as knowledge specific to FBI agents, Al-Qaeda -trained terrorists, or bomb makers (Farwell 1992b, Farwell 1993, Farwell et al. 2006).
The seminal paper by Dr. Farwell and Emmanuel Donchin (Farwell & Donchin 1991) reported successful application of the technique in detecting knowledge of both laboratory mock crimes and real-life events, with no false positives and no false negatives.
In a study with the FBI, Dr. Farwell and FBI scientist Drew Richardson, former chief of the FBI’s chem-bio-nuclear counterterrorism unit, used brain fingerprinting to show that test subjects from specific groups could be identified by detecting specific knowledge which would only be known to members of those groups (Farwell 1993, Farwell et al. 2006). A group of 17 FBI agents and 4 non-agents were exposed to stimuli (words, phrases, and acronyms) that were flashed on a computer screen. The probe stimuli contained information that would be common knowledge only to someone with FBI training. Brain fingerprinting correctly distinguished the FBI agents from the non-agents.

Limitations of brain fingerprinting

Both the strengths and limitations of brain fingerprinting are documented in detail in the expert witness testimony of Dr. Farwell and two other expert witnesses in the Harrington case (Harrington v. State 2001) and in a Law Enforcement Technology article (Simon 2005) as well as in Farwell’s publications and patents (e.g., Farwell 1994, Farwell 1995a, b, Farwell & Smith 2001). The limitations of brain fingerprinting described below are also summarized in PBS 2004, PBS Innovation Series – “Brain Fingerprinting: Ask the Experts”.
Brain fingerprinting detects information-processing brain responses that reveal what information is stored in the subject’s brain. It does not detect how that information got there. This fact has implications for how and when the technique can be applied. In a case where a suspect claims not to have been at the crime scene and has no legitimate reason for knowing the details of the crime, and investigators have information that has not been released to the public, brain fingerprinting can determine objectively whether or not the subject possesses that information. In such a case, brain fingerprinting could provide useful evidence.


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16-08-2012, 10:09 AM


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