| HMD | head-mounted display |
| VR | virtual reality |
| IVE | immersive virtual environment |
| EEG | electro-encephalography |
| EOG | electro-oculogram |
| FFBP | feed-forward backpropagation |
| SNR | signal-to-noise ratio |
| LDR | light-dependent resistor |
| FSM | finite state machine |
| FOV | field of view |
| FPS | frames per second |
| VE | virtual environment |
| ROI | region of interest |
| HCC | Haar cascade classifier |
| ROC | receiver operation characteristics |
| NCCC | normalised cross correlation coefficient |
| DMV | downward motion vector |
| UMV | upward motion vector |
| GT | ground truth |
| TP | true positive |
| FN | false negative |
| FP | false positive |
| DB | detected eyeblinks |
| FDR | false discovery rate |