Brain Fingerprinting PPT
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Brain Fingerprinting PPT

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Brain Fingerprinting is the technology used to solve crimes.

Brain Fingerprinting is the technology used to solve crimes.

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    Brain Fingerprinting PPT Brain Fingerprinting PPT Presentation Transcript

    • SEMINAR ON BRAIN FINGERPRINTING Presentation by T.V.VISHNU PRASAD
    • INTRODUCTION  Brain Fingerprinting technique used to determine scientifically what information is, or is not stored in a particular brain.  Measures the response to the Visual and the Audio stimulus.  Stimulus is a thing or event that evokes a specific functional reaction in an organ or tissue.  It does this by measuring electrical brainwave responses to words, phrases, or pictures that are presented on a computer screen
    • THE INVENTION  Brain fingerprinting was invented by Lawrence Farewell. Brain Fingerprinting technology is based on an electrical signal known as MERMER.  Farwell's brain fingerprinting originally used the wellknown P300 brain response to detect the brain's recognition of the known information
    • MERMER  Farwell discovered the P300-MERMER ("Memory and Encoding Related Multifaceted Electroencephalographic Response") A MERMER is an electrical signal which is part of the brainwave observed in response to familiar information.. When the brain recognizes something, then there is increase in neurons activity, so elicit some changes in brain wave signals .
    • OPERATING MECHANISM : Picture/word shown to an individual (Stimulus) Generates brainwave (P300) Triggers neurons of brain Electrical Potentials Accumulate in brain (MERMER) Headgear fitted with Electrodes placed on scalp Study Found Guilty/ Not guilty the data Using a computer program EEG amplifier Generates analog signals P300 – MERMER (an scalp ERP EEG) Measures brainwaves
    • A suspect is tested by looking at three kinds of information represented by different colored lines : RED : Information the suspect is expected to know. It arises due to target type stimulus. GREEN : Information not to suspect. The irrelevant stimuli is responsible for this type of brain waves. BLUE : Information of the crime that only perpetrator would know. This occurs due to probes.
    • ONE OF THE TEST CASES OF A SUSPECT The Following figure shows the RED and BLUE lines are closely correlated. This indicates the suspect or the criminal has the knowledge of the CRIME.
    • STAGES OF BRAIN FINGERPRINTING  Crime Scene Evidence Collection Brain Evidence collection Computer Evidence Analysis Scientific Result
    • FEATURES & APPLICATIONS 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. The National Security is one of the applications regarding this. 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. It is applied in the Medical field. Basically Brain fingerprinting is not lie detection. It is different from polygraph(lie-detector), which measures emotion-based physiological signals such as heart rate, sweating and blood pressure It can help solve crimes.
    • LIMITATIONS 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. Brain fingerprinting does not detect lies. It simply detects information. No questions are asked or answered during a brain fingerprinting test.
    • 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.