“…MA exposure did not cause any long-term changes in plasma corticosterone levels in either adolescent or adult mice. This finding replicates studies showing no immediate effects (Rud et al, 2016) or long-term effects (Buck et al, 2017) (Aisa, Tordera, Lasheras, Del Rio, & Ramirez, 2007;Hestermann, Temel, Blokland, & Lim, 2014), the dopamine, serotonin, and norepinephrine neurotransmitter systems also influence these behaviors (Carrasco & Van de Kar, 2003;Dunlop & Nemeroff, 2007;Owens & Nemeroff, 1994) and these neurotransmitter systems are altered by MA (Sulzer et al, 2005). Thus, the behavioral effects of MA in the adult mice may be due to MA's effects on these neurotransmitter systems.…”