i must like to published my ppts....

1. PRESENTED BY
Rupali Khavane
GUIDED BY
Prof. P.B.Lahoti

2. • Introduction
• What is brain and computer interface…?
• History
• BCI model
• How it works…?
• Types of BCI
• Why BCI…?
• Application
• Advantages
• Disadvantages
• Conclusion
2Brain Computer Interface

3. •A brain-computer interface is a direct
communication pathway between a
human or animal brain(or brain cell
culture) and an external device.
•Sometimes called a direct neural
interface or a brain machine interface
(BMI).
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4. • Research started from 1970
• BCI Project by Jacques Vidal
• Implanting simple BCI sensors within rats, mice,
monkeys, and humans.
• 1990 - implanting an electrode in the motor cortex
of a paralyzed patient.
4Brain Computer Interface
Jacques Vidal

5. • Brain-computer interface is an
electrode chip which can be
implemented in the brain
through surgical procedure.
• When it is implemented in brain
the electrical signal exchanged by
neurons within the brain are sent to
the computer and then the
computer is controlled by person.
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6. •In USA, more than
200,000 patients live
with the motor
consequences of serious
injury.
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7. An electroencephalogram is
the measurement of the
brain's voltage fluctuations as
detected from scalp
electrodes.
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• A more difficult task is interpreting the brain signals for
movement in someone who can't physically move his own arm.
With a task like that, the subject must "train" to use the device.
• With an implant in place, the subject would visualize closing his
or her disabled hand. After many trials, the software can learn to
recognize the signals associated with the thought of hand-closing.
• Software connected to a robotic hand is programmed to receive
the "close hand" signal and interpret it to mean that the robotic
hand should close. At that point, when the subject thinks about
closing the hand, the signals are sent and the robotic hand closes.

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14. •Invasive
•Semi invasive
•Non invasive
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15. Most accurate signal
• Targeted for people with
paralysis
• Implanted directly into the
grey matter
• Produce the highest quality
signals.
Most risky
• Can cause damage to brain,
leaves brain exposed.
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16. Less accurate signal
• BCI devices are implanted inside
the skull.
• Produce better resolution signals.
Less risky
•Brain isn’t exposed, less risk to
overall health.
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17. • Easy to wear.
• Produce poor signal.
• Dispersing the
electromagnetic waves
created by the neurons.
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18. • BCI is a new neuroscience paradigm that might help us better
understand how the human brain works.
• BCI research allows us to develop a new class of bioengineering
control devices and robots.
• BCI hold promise for rehabilitation and improving performance.
• BCI can expand possibilities for advanced human computer
interfaces (HCIs).
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19. • Medicinal
• Bioengineering
• Brain operated wheelchair
• Games
•Remote control of devices
through brain.
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20. • DIRECT COMMUNICATION
between human brain and
computers.
• Better LIVING, more
FEATURES, more
ADVANCEMENT in
technologies etc.
• New work area for scientists
and researches around the
world.
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21. • Virus attacks may occur to
brain causing ill effects.
• Requires extensive
training.
• BCI techniques are costly.
• Slow speed.
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22. • Enables people to communicate and
control appliances with use of brain
signals.
• Open gates for disabled people.
• Development of new brain imagining
techniques
• Numerous future applications.
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