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Brain Computer Interface Presentation
- 2. What’s Brain Computer Interface? • A brain computer interface (BCI), sometimes called a mind-machine interface (MMI), direct neural interface (DNI), or brain–machine interface (BMI), is a direct communication pathway between an enhanced or wired brain and an external device. BCIs are often directed at researching, mapping, assisting, augmenting, or repairing human cognitive or sensory-motor functions.
- 3. A brief overview of the history of BCI • Research on BCIs began in the 1970s at the University of California, Los Angeles (UCLA) under a grant from the National Science Foundation, followed by a contract from DARPA. • It all started with Hans Berger's discovery of the electrical activity of the human brain and the development of electroencephalography (EEG). In 1924 Berger was the first to record human brain activity by means of EEG.
- 4. How it actually works? • Input : Voltage fluctuations arise as neurons communicate using electrical signals. • This change, caused by some stimulus, is then measured using different methods like EEG, BrainGate, etc., and shown as a point on a graph. • When you plot many points this way you get your output, a graph measuring brain activity. The data represented by the graph can be used to control devices.
- 5. • Non-invasive BCIs do not involve neurosurgery. Types of BCI • Invasive BCIs are implanted directly into the grey matter of the brain during neurosurgery. • Partially invasive BCI devices are implanted inside the skull but rest outside the grey matter.
- 6. • In May 2008, researchers at Pittsburgh University planted an electrode inside a monkey’s skull and tried to read its brain activity. Experiments
- 7. Experiments • The next year, Honda developed its own brain computer interface and used it to enable communication between a human and its humanoid robot ASIMO using nothing more than thoughts.
- 8. Applications • Medical • Neuroergonomics and Smart Environment • Neuromarketing and advertisement • Educational and self-regulation • Games and Entertainment • Security and Authentication
Editor's Notes
- Breaking word by word Citing Wikipedia
- -Basically just describe what’s written on the slide -Add the “all starts with us military joke” -Thank Wikipedia
- -Mention that this how BCI started off, that this the most basic representation of how brain activity measurement works. -Mention how small these voltage changes are, which could as low as few micro volts, which tells us why it took so long for bci to emerge
- -So much for the boring stuff.
- -Any idea what happened next? -Using monkey as a test subject to see if brain activity can be successfully measured and used to control devices in a way we think.
- -Controlling bots with our thoughts, imagine how many lives it can save, we don’t have to send humans into dangerous environments like radioactive regions to clear radioactive wastes, we could send them to outer space or other planets before us to examine its habitability.
- -Now comes the part that concerns US the most -Medical : using brain waves to study and prevent diseases, accidents -Environment : efficient functioning, measuring stress -Neuromarketing : calculate attention for ads -Educational : using invasive bci to improve attention and regulate emotions -Games : obvious, could also be used for training as a simulator -Security : using bio signals for authentication, or particular thoughts, if we’re being forced we could send a stress signal, helpful for disabled people
- -Let’s see how much of a difference BCI can really make despite it being in very early stage -Describe how that woman must be feeling and the possibility of people like her using a fully functional BCI exoskeleton in future
- -In the last video we saw how our mind can give orders to a device reading our brain waves but that’s not it, we can use the same interface to communicate the other way, in the next video we’ll see a man unable to feel touch, getting that sensation back
- -BCI is still a young field There is a lot left to do, there is a lot of room for improvement, there are lots of mistakes to be made, but it can’t advance unless WE, the future, get involved.
- -Mind control. What was once dismissed as magic, as impossible is just on the horizon now, it’s up to us to make that as much of a reality as our cell phones. And in time not too long, this science fiction concept will become a science fact, it will literally change the world, and will bring smile to many faces.