ADHD	Attention Deficit Hyperactivity Disorder
ASTA	astaxanthin
OFT	open field test
MWM	Morris water maze
DA	dopamine
DR1	dopamine receptor 1
DAT	dopamine transporter
TH	tyrosine hydroxylase
SNAP-25	synaptic-associated protein 25
SERT	serotonin transporter
GDNF	glial-cell-line-derived neurotrophic factor
5-CSRTT	5-choice serial reaction time test
DSM-5	Diagnostic and Statistical Manual of Mental Disorders
AD	Alzheimer’s disease
PD	Parkinson’s disease
ALS	Amyotrophic Lateral Sclerosis
HD	Huntington’s disease
SHR	spontaneously hypertensive rat
WKY	Wistar Kyoto
Tyr	tyrosine
HVA	homovanillic acid
NE	norepinephrine
5-HIAA	5-hydroxyindoleacetic acid
Ach	acetylcholine
Glu	glutamate
GABA	γ-aminobutyric acid
Gly	glycine
PFA	paraformaldehyde
PFC	prefrontal cortex
STR	striatum
LC/MS	liquid chromatography–mass spectrometry
IS	internal standard
ESI	electrospray ionization
VMAT-2	vesicular monoamine transporter-2
H&E	hematoxylin and eosin
MAO-B	Monoamine Oxidase B
LTP	long-term potentiation
qRT-PCR	quantitative real-time polymerase chain reaction
IHC	immunohistochemistry
CE	cerebellum
DOAJ	Directory of Open Access Journals
TLA	three-letter acronym
LD	linear dichroism