Mind reading computer ppt
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The document discusses mind reading technology that uses functional near-infrared spectroscopy (fNIRS) to measure oxygen levels in the blood around the brain. A futuristic headband sends light into the head tissues to detect active, blood-filled areas. Researchers at Tufts University have begun a project using this technique to allow computers to respond to a user's brain activity by having them wear headbands during tasks while the device reads their brain responses.
Mind reading computer ppt
- 2. Introduction What is mind reading? Why mind reading? How does it works? Advantages and uses Disadvantages and problem Conclusion
- 3. People express their mental states, including emotions, thoughts and desires, all the time through facial expressions, vocal nuances and gestures Mind reading machine is co-ordination of human psychology & 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.
- 4. The team in the Computer Laboratory at the University of Cambridge has developed mind-reading machines — computers that implement a computational model of mind- reading to infer mental states of people from their facial signals. Using a digital video camera, the mind-reading computer system analyzes a person’s facial expressions in real time and infers that person’s underlying mental state, such as whether he or she is agreeing or disagreeing, interested or bored, thinking or confused. Prior knowledge of how particular mental states are expressed in the face is combined with analysis of facial expressions and head gestures occurring in real time. Software from Nevenvision identifies 24 feature points on the face and tracks them in real time. For example, a combination of a head nod, with a smile and eyebrows raised might mean interest.
- 6. The mind-reading computer system presents information about your mental state as easily as a keyboard and mouse present text and commands. Current projects in Cambridge are considering further inputs such as body posture and gestures to improve the inference. We are also looking at the use of mind-reading to support on- line shopping and learning systems.
- 7. The mind reading actually involves measuring the Futuristic headband volume and oxygen level of the blood around the subject's brain, using technology called functional near-infrared spectroscopy (fNIRS). The user wears a sort of futuristic headband that sends light in that spectrum into the tissues of the head where it is absorbed by active, blood-filled tissues
- 8. For the first test of the sensors, scientists trained the Web Search software program to recognize six words - including "go", "left" and "right" - and 10 numbers. Then researchers put the letters of the alphabet into 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 the program. "This proved we could browse the web without touching a keyboard”.
- 9. 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.
- 10. It is done using hidden Markov Model, Neural Network processing or active appearance model. Classification by Paul Ekman Anger, Fear, Happiness, Disgust ,Sadness, Surprise.
- 11. It is used to measure the electrical activity of the facial muscles. Muscles used are “corrugator supercilii muscle” and others. It is a measure of skin conductivity, which is dependent on how moist the skin is.
- 12. It is measured by a process called photoplethysmography. It produces a graph indicating blood flow through the extremities.
- 13. 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.
- 14. 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
- 15. 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 headbands 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.