BRAIN-COMPUTER-INTERFACE: A CONCEPTUAL WORKING APPROACHES FOR NEUROTECHNOLOGY

This article addresses to the core part of a neurotechnology known as Brain-Computer-Interface and abbreviated as BCI. It is most growing research area in this era for neurotechnologists. Whole portion of this article broadly describe three working stages of BCI-System such as signal acquisition, signal processing and signal application, and signal processing further categorized as signal preprocessing, feature extraction, feature classification and feature translation. However working functionality varies according to its interfacing technique used as invasive-interface, semi-invasive-interface, and non-invasive-interface. These interfacing techniques used various kinds of hardware/machinery such as electrocorticograpgy, magnetic-resonance-imaging, electroencephalography and magnetoencephalography which are briefly described.