The Foc.us headset is an early player in the wave of non-invasive devices that will enable improved brain function. It passes direct current between the cathode and anode, which are placed over the prefrontal cortex, making neurons more excitable. This helps them to fire more quickly, improving reaction time. When the currents are removed, neurons have additional plasticity.
Early studies have shown that tDCS, which can be used to stimulate regions of the brain other than the prefrontal cortex, such as the motor cortex, can provide therapeutic effects to Parkinson’s and stroke patients. DARPA has used tDCS to improve the training of snipers, and it has also been used to improve gamer performance.
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