tES	transcranial electrical stimulation
tDCS	transcranial direct current stimulation
tACS	transcranial alternating current stimulation
tRNS	transcranial random noise stimulation
HD-tACS	high definition transcranial alternating current stimulation
HF-tRNS	high-frequency transcranial random noise stimulation
DC	direct current
SR	Stochastic resonance
ERPs	event-related potentials
EEG	electroencephalography
AEP	auditory evoked potential
SG	sensory gating
DLPFC	dorsolateral prefrontal cortex
ST	sensory tetanus
MMN	mismatch negativity
IFG	inferior frontal gyrus
AC	auditory cortex
ASSR	auditory steady state response
MEG	magnetoencephalography
ERSP	event-related spectral perturbation
ITPC	inter-trial phase coherence
LAC	left auditory cortex
RAC	right auditory cortex
BAC	bilateral auditory cortex
RGDT	random gap detection test
GDT	gap detection task
IGF	individual gamma frequency
FEM	finite element model
FFT	fast Fourier transform
PDT	pitch discrimination task
SNR	signal-to-noise ratio
STG	superior temporal gyrus
pSTG	posterior superior temporal gyrus
IPL	inferior parietal lobule
SMC	somatosensory-motor cortex
PPC	posterior parietal cortex
DL	dichotic listening
RIPS	right intraparietal sulcus
LC-NE	locus coeruleus–norepinephrine
VOT	voice onset time
CV	consonant-vowels
OLSa	Oldenburger sentence test
SCT	speech comprehension threshold
SRT	sentence reception threshold