Brain machine interface
-
Upload
suvarcha-sharma -
Category
Education
-
view
434 -
download
5
description
Transcript of Brain machine interface
![Page 1: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/1.jpg)
BRAIN MACHINE INTERFACE
by suvarcha sharma
1014331852 2EC 3rd year
![Page 2: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/2.jpg)
CONTENT
Introduction to BMIThe human brainModel of BMIWhat is EEG ?How does BMI works????AdvantagesDisadvantagesApplicationConclusion
![Page 3: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/3.jpg)
INTRODUCTION
1. Introduced in 1924 by HANS BERGER.
2. BRAIN MACHINE INTERFACE (BMI) is a direct communication pathway between a brain and an external device.
![Page 4: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/4.jpg)
• BMI uses brain activity to command, control, actuate and communicate with the world directly through brain integration with peripheral devices and systems.
• Main principle behind this interface is the bioelectrical activity of nerves and muscles.
![Page 5: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/5.jpg)
THE HUMAN BRAIN
Brain is composed of millions of neurons. When the neuron fires, or activates, there is a voltage change across the cell which generates signals on the surface of the brain. By monitoring and analyzing these signals we can understand the working of brain.
![Page 6: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/6.jpg)
NEURONS
![Page 8: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/8.jpg)
INVASIVE AND NON-INVASIVE
![Page 9: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/9.jpg)
WHAT IS EEG
EEG IS MEASUREMENT OF ELECTRICAL ACTIVITY PRODUCED BY BRAIN AS RECORDED FROM ELECTRODES PLACED ON THE SCALP.
![Page 10: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/10.jpg)
An electroencephalogram (EEG) is a measure of the brain's voltage fluctuations as detected from scalp electrodes
It is an approximation of the cumulative electrical activity of neurons
It is the foundation of current BMI research
![Page 11: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/11.jpg)
PREDEFINED POINTS OF BRAIN
![Page 12: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/12.jpg)
HOW BMI WORKS??? • It sound like science fiction but is a clever
app of science and technology. the system does not really read thoughts; rather, it measures fluctuations in electrical voltage in the brain and translates them into commands on a computer screen.
• The human brain controls memory, vision, learning, thought, consciousness and other activities. By means of electrochemical impulses the brain directly controls conscious or voluntary behavior.
![Page 13: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/13.jpg)
•The system consists of a cap that fits over the user's head, with a few dozen holes through which electrodes are attached so they rest on the scalp.
• The electrodes are connected via thin cables to a"biosignal amplifier," which transmits the signals from the brain to a computer.
![Page 14: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/14.jpg)
![Page 15: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/15.jpg)
ELECTROENCEPHALOGRAM(EEG)
• An electroencephalogram (EEG) measures the brain's voltage fluctuations as detected from scalp through electrodes.
![Page 16: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/16.jpg)
Technique is very beneficial in field of severe disease, brain & neural injuries.
Provides daily life support to physically disabled and aged people, making use of bioengineering control devices & robots to grant healthy life for elderly people.
Assists scientist to understand how the brain memory, internal connection works can be understood to a great extent.
Assists devices to help disabled people.
ADVANTAGES
![Page 17: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/17.jpg)
¤ Requires a high mental concentration
¤ Can pose a threat to mental stability of the subject
¤ May result in chronic strokes in severe cases
¤ There is a risk of severe mental infections such as meningitis
DISADVANTAGES
![Page 18: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/18.jpg)
APPLICATIONS OF BMI
1. MEDICINE2. MILITARY3. MANUFACTURING4. GAMINGAND MANY OTHERS……
![Page 19: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/19.jpg)
![Page 20: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/20.jpg)
¤ A potential remedial tool.
¤ BMI is an advancing technology promising pattern shift in areas like Machine Control, Human Enhancement, Virtual reality ,etc.
¤ Several potential applications of BMI hold promise for rehabilitation and improving performance, such as treating emotional disorders (for example, depression or anxiety), easing chronic pain, and overcoming movement disabilities due to stroke.
¤ Intense R&D in future to attain intuitive efficiency.
Conclusion
![Page 21: Brain machine interface](https://reader036.fdocuments.us/reader036/viewer/2022062405/55851f9ed8b42aa86c8b4c1c/html5/thumbnails/21.jpg)
THANK YOU !!!