Basic Information about BCI Systems

Brain Computer Interface (BCI) systems establish a one way communication link between man and computer. The main goal of this technology is to provide a link between the brain and the physical world without any physical contact. Indeed these systems interlink thought to action. As the result, the user would be able to control the environment via brain signals. Electro-Encephalogram Signals (EEG) is input signals for these systems that include two main stages for processing of those signals, feature extraction and classification. Almost researches in this field are done to find what feature extracting methods and classifier are suitable. As regard spread of the existing information in this field, in this study, we first introduce a BCI system and then try to collect and organize the most needed information for processing EEG signals in BCIs. This study with having sufficient references presents the basic information for researchers who want to start their studying in this field.