The D-state and norepinephrine-dependent systems.
D000328:Adult; D000661:Amphetamine; D000818:Animals; D001288:Attention; D001921:Brain / Q000502:physiology; D001923:Brain Chemistry; D002415:Cats; D002648:Child; D003863:Depression; D005246:Feedback; D006801:Humans; D007858:Learning; D008568:Memory; D051379:Mice; D009042:Motivation; D009048:Motor Skills; D009638:Norepinephrine / Q000037:antagonists & inhibitors / Q000502:physiology*; D051381:Rats; D012892:Sleep Deprivation; D012895:Sleep, REM / Q000187:drug effects
D000661:Amphetamine; D009638:Norepinephrine