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MCA-2nd Year

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CONTENTS Introduction What is Mind Reading? Why Mind Reading? How does it Work? Advantages and uses Disadvantages and Problems Conclusion

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INTRODUCTION People express their mental state, including emotions, thoughts and desires, all time through facial expression, vocal nuances and gesture Mind reading machine is co-ordination of human psychology and computer techniques. Some Equipment are used to gather data & then analyzed. To use those data for further prediction is known as theory of mind reading.

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WHAT IS MIND READING? The team in the Computer Laboratory at the University of Cambridge has developed Mind Reading Machines-Computers that implement computational model of Mind Reading to infer mental states of people from their facial signal. Software from Nevenvision identifies 24 feature point on the face and tracks them in real time. For example, a combination of head node, with a smile and eyebrows raised might mean interest.

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HOW DOES IT WORKS The mind reading actually

involves measuring the volume and oxygen level of the blood around the subject’s brain using tech. called functional near-infrared spectroscopy (fNIRS)

The user wears a sort of futuristic head band that send light in that spectrum in to the tissues of the head where it is absorbed by active, blood filled tissues.

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Web search For the first test of sensors, scientists

trained the program to recognize six words-including ”go", "left” and “right” -10 numbers.

Then researchers put the letters of the alphabet in to a matrix with each column and row labeled with a single digit number.

These were used to silently spell ”NASA” into a web search engine using program.

“This proved we could browse the web without touching a keyboard”.

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Results can be evaluated in below way:

The results are often compared to an MRI, but can be gathered with lightweight, noninvasive equipment.

Wearing the FNIRS sensor, experimental subjects were asked to count the number of squares on a rotating onscreen cube and to perform other tasks.

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1.Neuroscience It deals with anatomy and molecular

biology of neurons. A neuron is a nerve cell that is the

basic building block of the nervous system. Neurons are specialized to transmit information throughout the body.

It is done by measuring oxygen level of blood using FNIRS.

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2. Techniques Facial effect detection It is done using hidden Markov Model, Neural Network

processing or active appearance model.

Emotional Classification Classification by Paul Ekman Anger, Fear, Happiness, Disgust,

Sadness, Surprise.

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Blood Volume Pulse

It is measured by process called photoplethysmography.

It produce a graph indicating blood flow through the extremities.

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Advantages and uses Can read minds

Help paralytic patients

Help Handicapped people

Help Comma patients

Help people who cant speak

Can be used for military purposes & sting operations

Can be combined with consoles & used for mind gaming, robotics & stuff.

Eliminate the capability to lie.

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Disadvantages &problem Breach in privacy Can extract, through an individual, an

important, secure & confidential information of individual, state or even a country

If developed or used by sinners, can be highly dangerous

Eavesdropping No way to neutralize this technology

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Conclusion Tufts University researchers have begun a three-year research

project which, if successful, will allow computers to respond to the brain activity of the computer's user.

Users wear futuristic-looking head bands to shine light on their foreheads, and then perform a series of increasingly difficult tasks while the device reads what parts of the brain are absorbing the light.

That info is then transferred to the computer, and from there the computer can adjust it's interface and functions to each individual.

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