2AFC	Two alternative forced choice
ACC	Anterior cingulate cortex
AP	Anterior–posterior
ASR	Artifact subspace reconstruction
BA	Brodmann area
cm	Centimeters
cm/s	Centimeters per second
CMC	Cortico–muscular coherence
CNV	Contingent negative variation
COM	Center of mass
COP	Center of pressure
CVA	Cerebrovascular accident
dDTF	Direct directed transfer function
DIPFIT	Dipole fitting
dlPFC	Dorsolateral prefrontal cortex
DTI	Diffusion tensor imaging
EEG	Electroencephalography
ERP	Event-related potential
ERPC	Event-related phase coherence
ERSP	Event-related spectral perturbation
FA	Fractional anisotropy
FC	Functional connectivity
fMRI	Functional magnetic resonance imaging
fNIRS	Functional near-infrared spectroscopy
FOOOF	Fitting oscillations and one over F
GM	Gray matter
HbO	Oxygenated hemoglobin
HOA	Healthy older adults
HYA	Healthy younger adults
ICA	Independent component analysis
iCoh	Imaginary coherence
IPL	Inferior parietal lobe
ITC	Inter-trial coherence
L	Left
LBP	Low back pain
M1	Primary motor cortex
MA	Mode of anisotropy
MCI	Mild cognitive impairment
MD	Mean diffusivity
MeSH	Medical subject headings
MR	Magnetic resonance
MRI	Magnetic resonance imaging
MS	Multiple sclerosis
ms	Milliseconds
MSC	Magnitude squared coherence
PD	Parkinson’s disease
PEP	Perturbation evoked potential
PET	Positron emission tomography
PFC	Prefrontal cortex
PMC	Premotor cortex
PPN	Pedunculopontine nucleus
PRISMA-ScR	Preferred Reporting Items for Systematic Reviews and Meta- Analyses extension for Scoping Reviews
PSD	Power spectral density
R	Right
RMS	Root mean square
ROI	Region of interest
S1	Primary somatosensory cortex
SMA	Supplementary motor area
SPL	Superior parietal lobe
SRM	Stimulus-selective response modulation
TBI	Traumatic brain injury
VR	Virtual reality