Presented By:
Sujana Santhoshi.K
Greeshma Rani.K

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INTRODUCTION
What is brain gate system?
 The mind-to-movement system that allows a quadriplegic man to control a computer using only his thoughts
 Neuroprosthetic device
 Principle
 Brain implant system developed by Bio-tech company Cyberkinetics in 2008 in conjunction with the department of Neuroscience at Brown University
 Computer chip, implanted into the brain, monitors brain activity and converts the intention of the user into computer commands.
Neuro chip
Chip uses 100 hair-thin electrodes that ‘hear’ neurons firing in specific areas of the brain.
Brain Computer Interface (BCI):
 The main working procedure of brain gate system.
 Direct communication pathway between a brain and an external device
 HUMAN BCI RESEARCH
 Invasive BCI
 Partially Invasive BCI
 Non Invasive BCI
 INVASIVE BCI
 Implanted directly into the grey matter of the brain during neurosurgery.
 PARTIAL INVASIVE BCI
 Implanted inside the skull but rest outside the brain rather than within the grey matter.
 PARTIAL INVASIVE BCI
 Electrocorticography(ECoG):
The electrodes are embedded in a thin plastic pad that is placed above the cortex.
 Light Reactive Imaging:
Implanting a laser inside the skull.
NON INVASIVE BCI
 Neuroimaging technologies as interfaces are used
 Signals recorded in this way have been used to power muscle implants and restore partial movement in an experimental volunteer
 Produce poor signal resolution
NON INVASIVE BCI
 Electroencephalography(EEG)
 Magnetoencephalography (MEG)
 Hat Allows Computer Control By Thought
APPLICATIONS
 Typing words by mind