LTP	Long-term potentiation
iLTP	Long-term potentiation of the inhibitory synapses
Chem-iLTP	Chemically induced iLTP
EPSP	Excitatory postsynaptic potential
IPSC	Inhibitory postsynaptic current
HP	Hippocampus
VTA	Ventral tegmental area
HFS	High-frequency stimulation
SC	Stellate cells
PKC	Protein kinase C
CaMKII	Calcium–calmodulin (CaM) dependent protein kinase II
PKA	Protein kinase A system
BDNF-TrkB	Brain-derived neurotrophic factor_ Tyrosine kinase B
NMDAR	N-methyl-D-aspartate receptor
GABA	γ-aminobutyric acid
GABAAR	GABA A receptor
GABABR	GABA B receptor
cGMP	Cyclic guanosine monophosphate
PUT	Polyamine putrescine
SPM	Polyamine spermine
APs	Action potentials
LFPs	Local field potentials
edNEG	Electrodiffusive neuron-extracellular-glia
MEA	microelectrode array
CNS	central nervous system
Trk	tyrosine-related receptor kinase
STDP	Spike timing-dependent plasticity
MeCP2	methyl CpG binding protein 2
mHTT	mutant huntingtin
HD	Huntington’s disease
AD	Alzheimer’s disease
mHTT	mutant huntingtin
p75NTR	p75 neurotrophin receptor
ACC	Anterior cingulate cortex
oEPSCs	Optically evoked excitatory postsynaptic currents
oHFS	Optogenetic HFS
HFLS	High-frequency laser stimulation
CCKR	Cholecystokinin receptor
PUT	putrescine
LTPCCK	A form of activity-dependent synaptic plasticity mediated by CCK
AC	Auditory cortex