The GVS system was developed by John Holden and Dr. Hamish MacDougall at the University of Sydney's School of Psychology "GVS generates illusory sensations of motion and postural and ocular reflexes. We use binaural bipolar GVS and a pseudorandom (sum of sines) current waveform that gives one the feeling that the world is rocking randomly from side to side like a boat in rough waters.Results from the GVS experiments are included in the Publications page."Here are some of the results they received:(Without GVS)(With GVS)Another example of GVS is this information video, which I used for the link of the day post As you can see GVS is very successful in manipulating a person's balance.Due to the low cost and easy setup I think GVS is very feasible for virtual reality use.Galvanic Vestibular Stimulation is the strongest contender to be used in a full virtual reality brain computer interface due to its low cost, easy setup and powerful results. Also, since the technology is extremely available it can be applied to many projects such as currently existing virtual reality headsets.

To what extent is GVS able to stimulate the nerve theoretically? Is it possible for it to become more advanced than it is now? Is there significant interest driving GVS? Otherwise, it looks as a great way to stimulate the 'G nerve', and by doing so achieving control over our sense of gravity and balance. Another quick question would be wether it has been, or can be, used on the cochlear nerve. Great job!

There are multiple challenges with using GVS though, probably the most important challenge would be that different people react differently to the current (skin conductivity, sweat, positioning of electrodes, all have a part to play) I'm also interested in other methods of stimulating the vestibular system (there is though, a lack of research in this area) Note: You can also stimulate the vestibular system with a strong magnetic field (although that would probably be fairly noisy)