Brain Fingerprinting Technology PPT
Published on July 15, 2016
Brain fingerprinting is based on finding that the brain generates a unique brain wave pattern when a person encounters a familiar stimulus Use of functional magnetic resonance imaging in lie detection derives from studies suggesting that persons asked to lie show different patterns of brain activity than they do when being truthful.
Issues related to the use of such evidence in courts are discussed.
The author concludes that neither approach is currently supported by enough data regarding its accuracy in detecting deception to warrant use in court. In the field of criminology, a new lie detector has been developed in the United States of America . This is called "brain fingerprinting". This invention is supposed to be the best lie detector available as on date and is said to detect even smooth criminals who pass the polygraph test (the conventional lie detector test) with ease. The new method employs brain waves, which are useful in detecting whether the person subjected to the test, remembers finer details of the crime. Even if the person willingly suppresses the necessary information, the brain wave is sure to trap him, according to the experts, who are very excited about the new kid on the block.
What is Brain Fingerprinting?
Brain Fingerprinting is designed to determine whether an individual recognizes specific information related to an event or activity by measuring electrical brain wave responses to words, phrases, or pictures presented on a computer screen. The technique can be applied only in situations where investigators have a sufficient amount of specific information about an event or activity that would be known only to the perpetrator and investigator. In this respect, Brain Fingerprinting is considered a type of Guilty Knowledge Test, where the "guilty" party is expected to react strongly to the relevant detail of the event of activity.
Existing (polygraph) procedures for assessing the validity of a suspect's "guilty" knowledge rely on measurement of autonomic arousal (e.g., palm sweating and heart rate), while Brain Fingerprinting measures electrical brain activity via a fitted headband containing special sensors. Brain Fingerprinting is said to be more accurate in detecting "guilty" knowledge distinct from the false positives of traditional polygraph methods, but this is hotly disputed by specialized researchers. Technique:
The person to be tested wears a special headband with electronic sensors that measure the electroencephalography from several locations on the scalp. In order to calibrate the brain fingerprinting system, the testee is presented with a series of irrelevant stimuli, words, and pictures, and a series of relevant stimuli, words, and pictures. The test subject's brain response to these two different types of stimuli allow the testor to determine if the measured brain responses to test stimuli, called probes, are more similar to the relevant or irrelevant responses.
The technique uses the well known fact that an electrical signal known as P300 is emitted from an individual's brain approximately 300 milliseconds after it is confronted with a stimulus of special significance, e.g. a rare vs. a common stimuls or a stimulas the proband is asked to count. The novel interpretation in brain fingerprinting is to look for P300 as response to stimuli related to the crime in question e.g., a murder weapon or a victim's face. Because it is based on EEG signals, the system does not require the testee to issue verbal responses to questions or stimuli.
Brain fingerprinting uses cognitive brain responses, brain fingerprinting does not depend on the emotions of the subject, nor is it affected by emotional responses. Brain fingerprinting is fundamentally different from the polygraph (lie-detector), which measures emotion-based physiological signals such as heart rate, sweating, and blood pressure. Also, unlike polygraph testing, it does not attempt to determine whether or not the subject is lying or telling the truth
Four phases of Farwell Brain Fingerprinting:
In fingerprinting and DNA fingerprinting, evidence recognized and collected at the crime scene, and preserved properly until a suspect is apprehended, is scientifically compared with evidence on the person of the suspect to detect a match that would place the suspect at the crime scene. Farwell Brain Fingerprinting works similarly, except that the evidence collected both at the crime scene and on the person of the suspect (i.e., in the brain as revealed by electrical brain responses) is informational evidence rather than physical evidence. There are four stages to Farwell Brain Fingerprinting, which are similar to the steps in fingerprinting and DNA fingerprinting:
1. Brain Fingerprinting Crime Scene Evidence Collection;
2. Brain Fingerprinting Brain Evidence Collection;
3. Brain Fingerprinting Computer Evidence Analysis; and
4. Brain Fingerprinting Scientific Result.
In the Crime Scene Evidence Collection, an expert in Farwell Brain Fingerprinting examines the crime scene and other evidence connected with the crime to identify details of the crime that would be known only to the perpetrator. The expert then conducts the Brain Evidence Collection in order to determine whether or not the evidence from the crime scene matches evidence stored in the brain of the suspect. In the Computer Evidence Analysis, the Farwell Brain Fingerprinting system makes a mathematical determination as to whether or not this specific evidence is stored in the brain, and computes a statistical confidence for that determination. This determination and statistical confidence constitute the Scientific Result of Farwell Brain Fingerprinting: either "information present" – the details of the crime are stored in the brain of the suspect – or "information absent" – the details of the crime are not stored in the brain of the suspect.
Comparison with other technologies:
Conventional fingerprinting and DNA match physical evidence from a crime scene with evidence on the person of the perpetrator. Similarly, Brain Fingerprinting matches informational evidence from the crime scene with evidence stored in the brain. Fingerprints and DNA are available in only 1% of crimes. The brain is always there, planning, executing, and recording the suspect's actions.
Brain Fingerprinting has nothing to do with lie detection. Rather, it is a scientific way to determine if someone has committed a specific crime or other act. No questions are asked and no answers are given during Farwell Brain Fingerprinting. As with DNA and fingerprints, the results are the same whether the person has lied or told the truth at any time.
Admissibility of Brain Fingerprinting in court:
The admissibility of Brain Fingerprinting in court has not yet been established. The following well established features of Brain Fingerprinting, however, will be relevant when the question of admissibility is tested in court. 1) Brain Fingerprinting has been thoroughly and scientifically tested. 2) The theory and application of Brain Fingerprinting have been subject to peer review and publication. 3) The rate of error is extremely low -- virtually nonexistent -- and clear standards governing scientific techniques of operation of the technology have been established and published. 4) The theory and practice of Brain Fingerprinting have gained general acceptance in the relevant scientific community. 5) Brain Fingerprinting is non-invasive and non-testimonial.
Record of 100% Accuracy
At the time of this first field application, Dr. Farwell's successes in the scientific laboratory with his invention were already well known. In collaboration with FBI scientist Dr. Drew Richardson, Dr. Farwell achieved 100% accuracy in using Farwell Brain Fingerprinting to identify FBI agents based on their brain responses to words and phrases only an FBI agent would recognize. Tests conducted by Dr. Farwell for the US Navy in collaboration with Navy LCDR Rene S. Hernandez, Ph.D., also resulted in 100% accurate results. In research on contract with a US government intelligence agency, Farwell Brain Fingerprinting achieved 100% accuracy in proving the presence or absence of a wide variety of evidence stored in the brains of individuals involved in over 120 cases. Dr. Farwell has published extensively in the scientific literature and presented his research to many scientific and technical audiences throughout the world . Farwell Brain Fingerprinting has been subjected to rigorous peer review under US government sponsorship, and has been found scientifically viable as well as revolutionary in its implications.
Brain Fingerprinting is a revolutionary new scientific technology for solving crimes, identifying perpetrators, and exonerating innocent suspects, with a record of 100% accuracy in research with US government agencies, actual criminal cases, and other applications. The technology fulfills an urgent need for governments, law enforcement agencies, corporations, investigators, crime victims, and falsely accused, innocent suspects.
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