The dorsal noradrenergic bundle, extinction and non-reward.
D000818:Animals; D001362:Avoidance Learning / Q000502:physiology; D001921:Brain / Q000502:physiology*; D005108:Extinction, Psychological / Q000502:physiology*; D006892:Hydroxydopamines / Q000494:pharmacology; D009638:Norepinephrine / Q000502:physiology*; D051381:Rats; D012055:Reinforcement Schedule; D012201:Reward
D006892:Hydroxydopamines; D009638:Norepinephrine