Brain control with laser

Researchers at MIT Media Lab conducted a successful experiment to activate with a laser a specific set of neurons in a monkey's brain. For the first time in the world this is done in primate. Previously, similar experiments were possible only on neurons in fish, flies and rats.

Technically, the method works by viral infection of certain neural areas of the brain, which in this field become blue-sensitive. Modern technologies make it possible to strictly limit infection to a very small area of ​​the brain, and even taking into account the specific type of neurons. This achieves an incredible precision laser effect, incomparable with existing methods that require the use of electrodes and medicines and affect much more extensive areas.

Scientists hope that in the near future they will be able to conduct such an experiment on a person. According to experts, laser “brain remote controls can be used to effectively treat mental disorders, including depression. For example, you can effectively block areas that are responsible for memory, fear, etc.
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The results of the scientific work are published in “Millisecond-Timescale Primary Brain”, Neuron 62, 191–198, April 30, 2009.

via Wired Science