MDPI	Multidisciplinary Digital Publishing Institute
DOAJ	Directory of open access journals
TLA	Three letter acronym
BCI	Brain Computer Interfaces
SVM	Support vector machine
LDA	Linear discriminant analysis
RF	random forest
kNN	k-nearest neighborhood
HCI	Human computer interaction
EEG	Electroencephalogram
MEG	Magnetoencephalography
ECoG	Electrocorticogram
fNIRS	Functional Near-Infrared Spectroscopy
EMG	Electromyography
UN	United Nations
ERPs	Event-related potentials
SMR	sensorimotor rhythms
CWD	Choi–Williams distribution
2LCF	Two-layer classification framework
CSP	Common spatial pattern
LSTM	long short-term memory
CNN	convolutional neural network model
RCNN	recurrent convolutional neural network
PCA	Principal component analysis
PSD	Power Spectral Densities
SNR	signal-to-noise ratio
SPI	Scenario program interface