Brain fingerprinting is a forensic techn

Brain fingerprinting is a forensic technique

1. INTRODUCTION

technique used to determine scientifically
or is not stored in a particular brain.

2. THE INVENTION

Was invented by Lawrence Farewell.
is based on an electrical signal
rain fingerprinting originally used the well-

n response to detect the brain's recognition of the
n

3. MERMER

| the P300-MERMER ("Memory and
aceted Electroencephalographic

4. | Picture/word |

shown to an
individual
(Stimulus)

Fond
Guilty/ Not

OPERATING MECHANISM :

Generates Electrical
brai Potentials
Triggers on Accumulate in
neurons ( ) brain
(MERMER)
of brain = ————
Headgear fitted
with
Electrodes placed
on scalp
Study EEG | Generates analog nu
the data amplifier WE (an scalp ERP
Usinga Sun EEG)
computer Measures

program

5. Brain Waves are used to detect the Crime

A suspect is tested by looking at three kinds of information
represented by different colored lines :
»_={=®): Information the suspect is expected to know. It
arises due to target type stimulus.
EN 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.

7. STAGES OF BRAIN FINGERPRINTING

ice Collection
Evidence collection

uter Evidence Analysis

tific Result

8. FEATURES & APPLICATIONS

inting" is a computer-based test that is designed to

ent, and provide evidence of guilty knowledge regarding
tify individuals with a specific training or expertise

nant terrorist cells or bomb makers. The

al Security is one of the applications regarding this.

Iso been used to evaluate brain functioning as a means of

n of Alzheimer's and other cognitively degenerative

nd to evaluate the effectiveness of advertising by measuring
es. 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.

9. LIMITATIONS

detects information-processing brain
hat information is stored in the subject's
ow that information got there.

erprinting does not detect lies. It simply detects
No questions are asked or answered during a brain
ting test.

10. CONCLUSION

late to generalize the results of the
Ise of the small sample of subjects.

confidence level of the
ever, provide further support for results from
earch using brain MERMER testing.