Consumer BCI Devices - Applications and Challenges

Brain-Computer-Interface (BCI) is used to acquire the brain signals, analyse and convert them into the commands which can help humans in controlling the outside environment. BCI is used applications namely security, medicine, games, self- regulation, research etc. BCI establishes a mutual connection with the brain and the external world using various Electroencephalography (EEG) devices. Today there are many people who are paralysed, these EEG devices can help them to communicate with the outside world. This chapter aims at exploring various EEG devices which vary in number of electrodes, their advantages and disadvantages and applications which are useful to the society in the long run.