ADHD	attention deficit hyperactivity disorder
AJP	aerosol jet printing
AOI	area of Interest
BCI	brain–computer interface
CEFs	conductive elastomeric filaments
CNN	convolution neural network
CNTs	carbon nanotubes
CVD	chemical vapor deposition
DI	deionized
DWT	discrete wavelet transform
ECG	electrocardiogram
EEG	electroencephalogram
EMG	electromyography
EOG	electrooculograms
EPEDs	epidermal paper-based electronic devices
FC	fixation count
FFD	first fixation duration
GO	graphene oxide
HCI	human–computer interaction
HMI	human–machine interface
HPC	hydroxypropyl cellulose
IPD	inter-pupillary distance
IR	infrared
LDA	linear discriminant analysis
MR	mixed reality
PCBs	printed circuit boards
PCCR	pupil center-corneal reflection
PDMS	polydimethylsiloxane
PMMA	poly methyl methacrylate
POG	point of gaze
PVA	polyvinyl alcohol
rGO	reduced graphene oxide
SNR	signal-to-noise ratio
SVM	supporting vector machines
TFD	total fixation duration
TTFF	time to first fixation
UV	ultraviolet
VR	virtual reality