11-10-2012, 03:12 PM
PRESENTATION ON BRAIN COMPUTER INTERFACES
BRAIN COMPUTER.pptx (Size: 1.48 MB / Downloads: 36)
INTRODUCTION:
Brain-computer interface (BCI) is a fast-growing emergent technology, in which researchers aim to build a direct channel between the human brain and the computer.
A Brain Computer Interface (BCI) is a collaboration in which a brain accepts and controls a mechanical device as a natural part of its representation of the body.
Computer-brain interfaces are designed to restore sensory function, transmit sensory information to the brain, or stimulate the brain through artificially generated electrical signals.
The Electric Brain
Every time we think, move, feel or remember something, our neurons are at work.
That work is carried out by small electric signals that zip from neuron to neuron as fast as 250 mph
The signals are generated by differences in electric potential carried by ions on the membrane of each neuron.
Early work
Algorithms to reconstruct movements from motor cortex neurons, which control movement, were developed in 1970s.
The first Intra-Cortical Brain-Computer Interface was built by implanting electrodes into monkeys.
After conducting initial studies in rats during the 1990s, researchers developed Brain Computer Interfaces that decoded brain activity in monkeys and used the devices to reproduce movements in monkeys and used the devices to reproduce monkey movements in robotic arms.
FUTURE APPLICATIONS:
Provide disabled people with communication, environment control, and movement restoration.
Monitor attention in long-distance drivers or aircraft pilots, send out alert and warning for aircraft pilots.
Control robots that function in dangerous or inhospitable situations (e.g., underwater or in extreme heat or cold).
CONCLUSION:
A potential therapeutic tool.
BCI is an advancing technology promising paradigm shift in areas like Machine Control, Human Enhancement, Virtual reality etc. So, it’s potentially high impact technology.
Several potential applications of BCI 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.
Will enable us to achieve singularity very soon.
Intense R&D in future to attain intuitive efficiency.