Unraveling Hidden Patterns of Brain Activity: A Journey Through Hemodynamic Deconvolution in Functional MRI

Acronym	Definition
ADHD	attention deficit hyperactivity disorder
AIC	akaike information criterion
ASL	arterial spin labeling
ATS	activation time series
AUC	area under the curve
BIC	bayesian information criterion
BOLD	blood oxygenation-level dependent
CAP	co-activation pattern
CBV	cerebral blood volume
CBF	cerebral blood flow
CMRO2	cerebral metabolic rate of oxygen
CNN	convolutional neural network
CSF	cerebrospinal fluid
DAN	dorsal attention network
DMN	default mode network
DOT	diffusion optical tomography
ECoG	electrocorticography
EEG	electroencephalography
EROS	event-related optical signaling
FC	functional connectivity
fMRI	functional magnetic resonance imaging
FISTA	fast iterative shrinkage-thresholding algorithm
FWHM	full-width at half-maximum
GLM	general linear model
GM	gray matter
GSBS	greedy state boundary search
HMM	hidden Markov model
HR	heart rate
HRF	hemodynamic response function
iCAPs	innovation-driven co-activation patterns
ICA	independent component analysis
ISC	inter-subject correlation
LARS	least angle regression
LASSO	least absolute shrinkage and selection operator
MAD	median absolute deviation
ME	multi-echo
ME-ICA	multi-echo independent component analysis
ME-SPFM	multi-echo sparse paradigm free mapping
MFISTA-VA	monotone fast iterative shrinkage-thresholding algorithm with variable acceleration
MRI	magnetic resonance imaging
MR	magnetic resonance
MRSI	MR spectroscopy
MvME-SPFM	multivariate multi-echo sparse paradigm free mapping
Mv-SPFM	multivariate sparse paradigm free mapping
msPFM	multi-subject paradigm free mapping
NIRS	near-infrared spectroscopy
PET	positron emission tomography
PFM	paradigm free mapping
PopSync+	population synchrony
PS	phase synchrony
PPI	psychophysiological interactions
QPP	quasi-periodic patterns
RVT	respiratory volume per time
ROC	receiver operating characteristic
ROI	region of interest
RSSD	root sum of squares difference
SNR	signal-to-noise ratio
SVD	singular value decomposition
SPLORA-PFM	sparse and low rank paradigm free mapping
SPFM	sparse paradigm free mapping
TA	total activation
TCD	transcranial doppler ultrasound
TE	echo time
TR	repetition time
WM	white matter

Acronyms