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The hypocretin/orexin (HCRT) system is implicated in reward and reinforcement processes through actions on the mesolimbic dopamine (DA) system. Here we provide evidence for the relationship between HCRT and DA in vivo in anesthetized and freely moving mice. The ability of cocaine to elicit reward‐related behaviors in mice lacking the HCRT prepro‐peptide (HCRT knock‐out; KO) and wild‐type controls...
Rationale Cocaine addiction is a chronic psychiatric disorder characterized by pathological motivation to obtain cocaine and behavioral and neurochemical hypersensitivity to cocaine-associated cues. These features of cocaine addiction are thought to be driven by aberrant phasic dopamine signaling. We previously demonstrated that blockade of the hypocretin receptor 1 (HCRTr1) attenuates cocaine self-administration...
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