18-01-2010, 11:54 PM
Brain finger printing
18-01-2010, 11:54 PM
Brain finger printing
19-01-2010, 07:42 AM
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https://seminarproject.net/Thread-Brain-Fingerprinting https://seminarproject.net/Thread-Brain-...logy--2715 https://seminarproject.net/Thread-Brain-...12#pid5112 where already added more information and report of Brain finger printing technology Hope .. its help full
20-07-2012, 03:18 PM
Brain Fingerprinting
45Brain Fingerprinting.ppt (Size: 2.2 MB / Downloads: 56) What is Brain Fingerprinting? Brain Fingerprinting is a scientific technique to determine whether or not specific information is stored in an individual's brain. How it works ? On seeing a previously known information, a specific measurable brain response known as a P300 or MERMER i.e. Memory and Encoding Related Multifaceted Electroencephalographic Response, is elicited by the brain of a subject. What is P300/ MERMER? A MERMER is a part of the brainwave observed in response to familiar information. When the brain recognizes something, neurons are fired synchronously, eliciting characteristic changes in brain activity. It is these changes, that investigators look for when trying to determine whether someone recognizes a particular piece of information. When a person is exposed to a rare, but meaningful information, there is increase in neuron activity which results in an increase in voltage, typically within 300–1000msec after the stimulus, and that response with increases voltage is known as P300. The utility of the P300 in detection of deception was recognized as early as 1988, However, the P300 has only a 87.5% success rate in revealing the presence of relevant information in one’s brain. But Farwell’s test is based on the discovery that the P300 is only a subcomponent of a more complicated response called a MERMER. The MERMER, includes the P300 and another longer latency, electrically negative subcomponent with a latency of up to two seconds post-stimulus Results Results have shown this technique to be capable of producing an "information absent" or "information present" determination, with a strong statistical confidence, in approximately 90% of the cases studied. All of the determinations were accurate. In the other 10% of cases the mathematical algorithm determined that there was insufficient information to make determination. Conclusion It would be inappropriate to generalize the results of the present research because of the small sample of subjects. But the 100% accuracy and high confidence level of the results, however, provide further support for results from previous research using brain MERMER testing. Additional research is required to determine if brain MERMER testing is a technique which could tell an investigator that a particular person possesses this detailed knowledge. Additionally, if research determines that brain MERMER testing is reliable enough that it could be introduced as evidence in court, it may be the major criminal investigative tool of the future.
10-08-2012, 11:45 AM
Brain finger printing
Brain fingerprinting.ppt (Size: 1.17 MB / Downloads: 27) WHAT IS BRAIN FINGERPRINTING" Brain Fingerprinting is a controversial forensic science technique. It uses brain-reading techniques to determine whether specific information is stored in a subject’s brain. It does this by measuring electrical brainwave responses to words, phrases, or pictures that are presented on a computer screen. EVOLUTION OF BRAIN FINGERPRINTING" Brain Fingerprinting was invented by Lawrence Farwell. It is identical to standard lie detection test using except that it also uses other brainwaves in addition. This technique has been criticized on a number of fronts during its early stage though many research laboratories have reported 99% accuracy. HOW DOES IT WORKS 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. 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. CONCLUSION" Though Brain Fingerprinting analysis has certain limitations but it has remarked a great advancement over other tradition analysis and testing techniques by leaps and bounds. Keeping its uses and advantages in mind we can surely neglect its limitations because more research and testing in Brain Fingerprinting is still in progress at various research laboratories. Hopefully we will explore a lot more in near future in this field.
01-09-2012, 11:46 AM
Brain Fingerprinting
Brain Fingerprinting.pptx (Size: 1.52 MB / Downloads: 40) Introduction:- Brain fingerprinting is based on generation of a unique brain wave pattern when a person encounters a familiar stimulus. The Brain Fingerprinting test is able to determine whether a person has knowledge about a crime or not. Invented by- Dr. Lawrence Farwell. best lie detector available. Concept:- There’s a particular brain response called a P300 MERMER("Memory and Encoding Related Multifaceted Electroencephalographic Response") A person has this response when they take note of something significant. Brain fingerprinting uses cognitive brain responses, it does not depend on the emotions of the subject, nor is it affected by emotional responses. Brain Fingerprinting testing detects scientifically, the presence or absence of specific information. Brain responses after only 300 milli-sec of the stimulation. Applications: Counter terrorism: In determining the prior and potential terrorists In testing the truth of witness In judging the suspect In checking the intensity of the information in brain |
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