Mind-Reading-Computer-Ppt.pdf

MIND -READING COMPUTER

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CONTENT

1.Introduction.

2.What is Mind-Reading Machine?

3.Why mind reading?

4.How does it work?

5.Advantages and uses

6.Disadvantages

7.Conclusion

8. References

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1. Introduction

• Problems with existing computer.

a. Receive input from slow tools. b. Require explicit input. c. Mind-Blind

• Theory of Mind-Reading

The ability to attribute mental states to others from their behaviour and to use that knowledge to guide our own actions and predict those of others .

. Need of Mind-Reading machine 3 Pediain.com

2. What is Mind-Reading Machine?

Machines that represent computational model of mind-

reading to infer mental states of people from their facial

signals.

Developed by a team of cambridge university, taking

inspiration from Psychology, Computer vision and

Machine Learning.

Prior knowledge of how particular mental states are

expressed through face in real time is required. Software

from Nevenvision identifies 24 feature points on the face

and tracks them in real time. Movement, Shape and

Colour are then analyzed to identify gestures like smile etc. 4 Pediain.com

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3. Why mind reading?

• Input to computer with incredible speed

• To support on-line shopping and learning systems.

• To control the animation of cartoon avatars.

• To detect driver mental states such as drowsiness,

distraction and anger.

• To monitor and

Suggests improvement

in human-human

Interaction. 6 Pediain.com

4. How does it work?

•

• •

Electroencephalograph(EEG) a device used by medical researchers to pick up electrical currents from various parts of the

brain.

Functional near-infrared spectroscopy (fNIRS) Technology which measures the volume and oxygen level of the

blood around the subject's brain.

Futuristic headband that sends light into the tissues of the head where it is absorbed by active, blood-filled tissues. then it measures how much light was not absorbed.

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4. How does it work?

• • •

Wearing the fNIRS sensor , experimental subjects were

asked to count the no. of squares on a rotating onscreen

cube . The subjects were then asked to rate the difficulty of

the tasks, 83% time it is matched with fNIRS system. NASA has developed a computer program which can read

silently spoken words by analyzing nerve signals in our

mouth and throats . Just the slightest movement in the

Voice box and tounge is enough to work. Initially scientists trained the software program to recognize six words-including go , left , right and 10 numbers.

Participants hooked up to the sensors silently , said the

words to themselves and the software correctly picked up

the signals 92% of the time. 8 Pediain.com

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5. Advantages and uses

•

•

• • •

Mind controlled wheelchair— developed by university of electrocommunications in Japan to feel

you like half professor X and half Stephen Hawking except with the

theoretical physics skills of the former and the telekinetic skills of

the latter.

The result of this is that you can move the wheelchair

solely with the power of your mind.

Dumb people can talk. The sensors have been tested to do simple web searches and may

help space-walking astronauts in future. The system can send commands to rovers on other planets. 10 Pediain.com

5. Advantages and uses – contd.

•

•

•

Help injured astronauts to control machines, or

aid disabled people.

For screening suspected terrorists –

as well as for predicting future dangerousness more

generally. We are closer than ever to the crime-

prediction technology .

The pilot of a high-speed plane or spacecraft, for

instance, can order some vital flight information by

thought only . No need to search the right dials or

switches on crowed instrument panel.

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6. Disadvantages and problems

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•

• •

FMRI results have to account for heart rate,

respiration , motion and a number of other factors

that may cause variance in the signal.

Individual brains differ, soscientists need to

study a subject's patterns before they can train a

computer to identify those patterns or make prediction.

Tapping Brains for Future Crimes

we cannot reliably predict human behavior- so, we

risk criminalizing the innocent.

Question upon the fundamental principles of our

criminal justice system. 12 Pediain.com

6. Disadvantages and problems – contd.

•

•

• •

We aren't particularly good at rehabilitation

Our society is not ready

The initial tests may have been successful

because of the short lengths of the words .

The initial success “doesn't mean it will scale up”. It is

necessary to repeat the tests on many different people and

check whether sensor is working on everyone or not.

Small vocabulary, Isolated word recognition is a

quite different problem than conversational speech,

not just in scale but in kind also. 13

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7. Conclusion

• If 3 year project of Tufts university becomes

successful, then we can allow computers to respond to

the brain activity of the user.

•These computers can perform telephaty , by

translating brain activity into words.

• If it will be known that which air traffic

controllers were overloaded , the next incoming

plane would be assigned to another controller.

• Hence if we get 100% accuracy these computers

may find various applications in many fields,

specially in electronics where we have very less

time to react. 14 Pediain.com

8. References

• • •

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•

www.newscientist.com/article/dn4795-nasa-

develops-mindreading-system

http://www.eecs.tufts.edu/~etreac01/papers/hciintl.

09.pdf

www.eurescom.de/message/default_Dec2004.asp

http://en.wikipedia.org/wiki/FNIR

http://en.wikipedia.org/wiki/Electroencephalograp

hy

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Thanks

for

patience hearing !

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