DAn	dopamine-releasing neurons
DA	dopamine
VTA	ventral tegmental area
SNpc	substantia nigra pars compacta
KO1	miR-218 isoform 1 knock out
c-KO2	miR-218 isoform 2 conditional knock out
c-dKO	miR-218 isoform 1/2 conditional knock out
CPA	constant potential amperometry
MBT	marble-burying test
EPM	elevated plus maze test
NAcc	nucleus accumbens