The Brain Computer Interface (BCI) allows users to control computers, and other devices, by using their thoughts. BCIs capture brain activity and translate it into commands for operating the device. They then provide feedback to the user so that he or she can correct any inputs which caused errors.

The most popular method of creating BCIs is the use of electrodes connected to the head or body to record brain signals. These digital signals are studied to identify the relevant features of the signal that are compatible with the intended use. These features could include EEG or ECoG response magnitudes and latencies, as well as strength within specific EEG or ECoG frequency bands or firing rates of individual cortical neurons.

Based on our survey the public is enthusiastic about the prospect of applying BCI technology for a variety of purposes. It is clear, however, that BCI researchers must address the many concerns raised by the public and their own experts in order to ensure the development of this emerging technology.

One of the biggest problems that remain one of the most important is the improvement of BCI reliability. In the real world, the BCI must navigate to this site be as reliable as natural muscle-based movements. This requires an CNS that is sufficiently plastic to allow the BCI to recognize and produce the intended commands. The other issue is the cost of invasive BCIs, which require ongoing and initial implantation as well as technical support costs. If these costs cannot be reduced substantially, the commercial viability of a BCI will be limited to those with severe disabilities.