16-03-2011, 12:31 PM
Presented By
Sumita kumari Khandual
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BRAIN FINGER PRINTING
Introduction
Brain fingerprinting is a scientific technique to determine whether or not specific information is stored in an individual's brain.
Brain fingerprinting was invented by Dr. Lawrence A. Farwell
The chief scientist and president of Human Brain
Research Laboratory, USA.
He had tested Brain Fingerprinting technology in over 170 cases. More than 80 of these were in real-life
situations, and the rest were laboratory studies.
Definition
"Brain fingerprinting" is a computer-based test that is designed to discover, document, and provide
evidence of guilty knowledge regarding crimes.
Brain fingerprinting is a 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 .
Equipment and technology
The brain fingerprinting system comprises
A personal computer.
A data acquisition board.
Two monitors.
A EEG amplifier.
Software for data acquisition
Some electrodes.
Computer controled:
The electrodes to used to measure electrical brain activity.
The software presents the stimuli, collects the EEG data, and analyzes the data.
Brain electrical activity amplified and stored on a memory device.
During the data collection ,the stimuli are displayed to the subjecton one monitor,and the investigator views another monitor.
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.
How the technology work
When someone commits a crime, his brain records it has a memory .
Brain Fingerprinting seeks to reveal that memory, by showing the suspect evidence taken from the crime scene.
A head band with sensors is placed on the subject.
A series of pictures or words is flashed on the screen.
The computer records the brain waves produced in response to what the subject sees.
The brain responses called a P300/ MERMER are recorded as a wave form.
By analyzing MERMER (Memory and Encoding Related Multifaceted Electroencephalographic
Response)the pattern of waves, Farwell can
determine if the subject is recognizing what he is
seeing.
Crime Control Information
Information is absent
Information is present
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:
1) 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.
Application
National Security.
To test job applicants on the falsification of an application.
Medical Field.
Helps in Identifying false-witnesses.
Benefit
Identify criminal quickly and scientifically,record of 100% accuracy.
Provide immediate Scientific Result : Information Present or Information Absent.
Reduce costs and complexities.
Support the right to a speedy and fair trial.
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.
Conclusion
Brain Fingerprinting is a revolutionary new technology for solving crimes, with a record of 100% accuracy.
The technology fulfills an urgent need for governments, law enforcement agencies, corporations, and individuals in a trillion-dollar worldwide market. The technology is fully
developed and available for application in the
field.