ECG	Electrocardiography
EMG	Electromyography
EEG	Electroencephalography
BCI	Brain Computer Interfacing
DRL	Driven Right Leg
PC	Personal Computer
TI	Texas Instruments
OPAMP	Operational Amplifier
PCB	Printed Circuit Boards
CMRR	Common-mode Rejection Ratio
A/D	Analogue-to-digital
DAQ	Data Acquisition System
SPI	Serial Peripheral Interface