Martin's Seminar on Brain Control Interface(BCI)

BRAIN COMPUTER INTERFACE

The Electric BrainThe Electric Brain Transmitting signals directly to someone's Transmitting signals directly to someone's brain that would allow them to see, hear or feel brain that would allow them to see, hear or feel specific sensory inputs.specific sensory inputs. Making Science Fiction into Reality.Making Science Fiction into Reality.Isn't about Convenience – disabled people.Isn't about Convenience – disabled people.

Brain – Neurons…Brain – Neurons… Brain is filled with Brain is filled with NeuronsNeurons..

Nerve cells are connected by Nerve cells are connected by

Dendrites & AxonsDendrites & Axons..

Signals are in form of small Signals are in form of small

Electronic, as fast as 250mph.Electronic, as fast as 250mph.

Signals are generated by Signals are generated by

difference in Electric potential difference in Electric potential

carried by carried by IonsIons on the on the Membrane Membrane

of each Neuron.of each Neuron.

BCI – Input & OutputOne of the biggest challenges BCI facing is the Basic Mechanism of the Interface itself. The Easiest & least invasive method is a set of electrodes & the device which is attached to the scalp is known as

EELECTROLECTROEENCEPHALONCEPHALOGGRAPHRAPH(EEG).(EEG).The Electrodes can read the Brain signals. The another way to measure brain activity is with

Magnetic Resonance ImageMagnetic Resonance Image(MRI).(MRI).

BCI ApplicationsDevelopment of devices that can be controlled by thoughts.If you think, a remote control is convenient, imagine changing channels with your mind.A more difficult task is interpreting the brain signals for movement in someone who can't physically move their own arm. Once the basic mechanism of converting thoughts to computerized or robotic action is perfected, the potential uses for the technology are almost limitless.

Sensory Input The most common and oldest way to use a BCI is a

cochlear implant. A cochlear implant bypasses the nonfunctioning part

of the ear, processes the sound waves into electric signals and passes them via electrodes right to the auditory nerves. The result: A previously deaf person can now hear.

With enough practice, users can gain enough control over a cursor to draw a circle, access computer prog’s & control T.V.

Dr. Peter Brunner demonstrates the brain-computer interface at a conference in Paris.