1. Control a machine by thought
The human brain
Control a machine by thought

2. summary Introduction I) operation of experiments control by thought
II) Reconstruction from brain activity
Conclusion

3. introduction We know just 20% of ours brain
Brain-machine Interfaces (BMI)
-> create direct communication between an individual and a machine
brain activity is recorded, analyzed and translated into machine language
Many possibilities after this progress

4. I) operation of experiments control by thought
2 differents experiments:
Experiments of Professor Muller
The American experiments

5. A) Experiments of Professor Muller
Brain activity produces currents
Scientific retrieves, stores and analyzes data
-> translated into commands sent to the machine
artificial neural network

6. cap connected to the machine
put some gel to improve the connection
Very good results

7. Problems of this experiment :
It’s very long (analysis time)
extensive brain activity
-> many neurons are activated
-> processing problems

8. B) the American experiments
Stops the cap
they implant a chip in the brain

9. succeed to control a electronic arm across the Atlantic
It’s a philosophical problem

10. Problems of this experiments :
Consequences :
Faster and more efficient
Problems of this experiments :
too much risk of infection
Have to stop the experiments

11. C) Possibilities of these technological advances
the scientifics contradict each other
what opportunities :
Advanced medical (disabled)
Improve human being

12. II) Reconstruction from brain activity

13. 1) A simple outline of the experiment
First step:

14. 1) A simple outline of the experiment
second step:
thousand points in the brain
Dabatase

15. 1) A simple outline of the experiment
Third step: Record new brain activities

16. 1) A simple outline of the experiment
Last step:
Select ~18,000,000 seconds of video downloaded at random from YouTube.

17. 1) A simple outline of the experiment
Last step:
Put each of these clips through the dabatase to generate predictions of brain activity.

18. 1) A simple outline of the experiment
Last step:
Select the 100 clips whose predicted activity is most similar to the observed brain activity.
Average those clips together. This is the reconstruction.

19. 1) A simple outline of the experiment
Finally:

20. 2) Questions Are you for or against this technology ?
What are the future applications of this technology?
Will it be possible to decode dreams, memory, and visual imagery?

21. Conclusion