BRAIN FINGERPRINTINGTECHNOLOGY

Guide :Prof. Keerti Naregal

Presentation bySheetal L K 2KL11CS073

OVERVIEW

1.Introduction2.Basic principle3.Working procedure4.Operational mechanism5.Comparisons with other technology6.Applications7.Advantages8.Limitations9.Conclusions

Introduction• Brain Fingerprinting is a scientific, computer based technique which is used to determine whether a specific information is stored in an individual's brain or not.

• Brain fingerprinting is one of the efficient investigative technology, developed in the United States of America by Dr. Lawrence Farwall in 1995.

Basic principle• It is based on the theory that throughout any action, the brain analyze , executes and records that action.

• And when the brain recognizes something then there is some changes in the neurons activity ,due to which there is changes in brainwave signals .On the basis of these changes in brain wave signals scientists determine that a particular information is present in the subject mind or not.

• The brain wave signal which is used in this technique is well-known brain wave p 300-MERMER.

P300: • Specific, measurable brain response emitted by the brain of a

subject who has the relevant information stored in his brain.MERMER:• Memory and Encoding Related Multifaceted Electroencephalographic response.

• It is a patented device and comes along with a head gear.

MERMER SIGNAL

WORKING PROCEDURE In a brain fingerprinting test,

stimuli are presented to the subject in the form of words, phrases, or pictures on a computer screen. Brain responses are measured from the scalp, digitized, and analyzed to determine the presence or absence of information stored in the brain.

3 TYPES OF STIMULI

Target : The target stimuli are made relevant and noteworthy to all subjects.

Irrelevant : These have no relation to the situation under investigation.

Probes : Probes are the stimuli that are relevant to the situation under investigation.

OPERATIONAL MECHANISM

Phases:

There are four stages to Farwell Brain fingerprinting.1. Crime Scene Evidence Collection: Gathering evidences from crime scenes.

2. Brain Evidence Collection: A specialist checks whether the crime scene evidence matches evidence stored in brain.

3. Computer Evidence Analysis: Computerized analysis is done on the brain evidences and statistical methods are applied to move to the next phase.

4. Scientific Result: Finding whether the person is guilty or not guilty

DETECTING GUILT

COMPARING WITH OTHER TECHNOLOGY

Experimental Design

ADVANTAGES