Brain Computer Interface Systems

There has been so much hype in the media about the brain computer interface (BCI) systems during the past few years (see Wikipedia’s Article on BCI systems for some examples). Although many regard a BCI as a “mind-reader”, the truth is far from that. Actually,most BCI systems are restricted to identify one or two patterns in the brain signals. In this article, I would like to discuss the abilities and the shortcomings of BCI systems in more details. The topics that are covered in this article are as follows:

What is a BCI System?

Neurological Phenomenon

Feature Extraction in BCI Systems