BRAIN COMPUTER INTERFACE

BRAIN COMPUTER INTERFACE (BCI) Popular Science Feb. 2004

[object Object],[object Object],Brain Computer Interface

[object Object],[object Object],[object Object],Nicolelis, 2001 Motivation for BCI/BMI Research

[object Object],[object Object],Detecting neural activity

[object Object],[object Object],[object Object],[object Object],Invasive BCI

[object Object],[object Object],[object Object],Non Invasive BCI

EEG ,[object Object],Mussa-Ivaldi & Miller, 2003

EEG Data Recordings of brainwaves produced by an electroencephalogram

Help impaired hands to grasp by mind EEG-MRP Hold cup for drinking http://www.dpmi.tugraz.at/

Play videogames by mind Leuthardt et al.,2004 ECoG based BCI Video Pfurtscheller et al., 2003

Neuron spike based BCI ,[object Object],[object Object],[object Object],[object Object],Nicolelis, 2001

Miguel Nicolelis Experiment Diagram of the BCI developed by Miguel Nicolelis and collegues for use on Rhesus monkeys

Real time movement of 2d/3d objects 2D movement control 3D movement control

Animal BCI Research Garrett Stanley's recordings of cat vision using a BCI implanted in the lateral geniculate nucleus (top row: original image; bottom row: recording)

Working of Simple BCI Schematic diagram of a BCI system

[object Object],[object Object],[object Object],BCI Methods

[object Object],[object Object],P300 Detection

Experiment Design ,[object Object],[object Object],[object Object],[object Object],EEG amplifier Human subject Visual feedback

Experiment Design (Donchin, 1988, 2000) Flashing of rows/columns containing the desired letter will elicit P300 response at vertex

Application Release The Power of Brain

1.Artificial Sensory channel Artificial Hearing Since 1978, about 70,000 cochlear recipients worldwide. www.cochlearamericas.com

Artificial Vision http://www.wired.com/wired/archive/10.09/vision.html

2. Artificial Motor Channel Nicolelis, 2001 Nicolelis, 2001

3. Neural Disorder Control Parkinson’s disease Seizure prediction and control Nicolelis, 2001 www.medtronic.com

[object Object],FDA approval for brain implant Cyberkinetics Inc. Neural Signals Inc.

Future: Silicon Cognition Ted Berger , University of Southern California MIT Technology Review, May 2003

Silicon Cognition Ted Berger , University of Southern California MIT Technology Review, May 2003

[object Object],[object Object],[object Object],[object Object],Advantages

Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],Conclusion

Refrences ,[object Object],[object Object],[object Object]

BRAIN COMPUTER INTERFACE

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