A2A	Adenosine 2A receptor
AC	Adenylate Cyclase
Ach	Acetylcholine
ADHD	Attention Deficit Hyperactivity Disorder
Cck	Corticotropin-releasing hormone receptor 1
CREB	c-AMP response element-binding protein
DA	Dopamine
DAergic	Dopaminergic
DAR	Dopamine Receptor
DAT	Dopamine Transporter
dMSNs	direct Medium Spiny Neurons
GABA	γ-aminobutyric acid
GIRK	G-protein gated inwardly rectifying K+
GPCR	G protein-coupled receptor family
GPe	external segment of the Globus Pallidus
GPi	internal segment of Globus Pallidus
HD	Huntington’s diseases
iMSNs	indirect medium spiny neurons
L-DOPA	L-3,4-diidrossifenilalanina
LC	Locus Coeruleus
LTD	Long-Term Depression
LTP	Long-Term Potentiation
MAPK	Mitogen Activated Kinase
mDAergic	midbrain Dopaminergic neurons
nAc	nucleus Accumbens
PD	Parkinson’s Disease
PFC	Prefrontal Cortex
PKA	Protein Kinase A
RPE	Reward Prediction Error
SN	Substantia Nigra
SNpc	Substantia Nigra pars compacta
SNpr	Substantia Nigra pars reticulata
STDP	Spike-Timing-Dependent Plasticity
VMAT2	Vesicular monoamine transporter 2
VTA	Ventral Tegmental Area