… Based on these findings, it is conceivable that, if rats self-administered cocaine for 2 ha day
for 14 d, similar relationships between risk preference and escalation of intake would emerge…

… Greater phasic DA activity has previously been observed in rats that were more hyperactive
in a novel environment and self-administered more cocaine (40). Likewise, chemogenetic …

… between selfadministered cocaine and a species-specific non-drug alternative (money for
humans, food for rhesus monkeys and rats) showed a similar pattern of cocaine choice across …

… limited support for the opponent process theory, with less … support for the opponent process
theory which purports that … and methadone were self-administered at doses that produced …

… is rapidly rising) of self-administered cocaine and when given … opponent processes extends
beyond the self-administration session. It appears that after chronic long-access cocaine SA, …

… Oral fentanyl SA produced patterned SA similar to IV cocaine, … 10) rats were trained to
self-administered oral fentanyl 5 days a … that the affective opponent process can be detected even …

… properties of cocaine-paired cues. The New Response Acquisition procedure tests the ability
of cocaine… rats receive noncontingent infusions of cocaine either with simultaneous (Paired) …

… First, prescription opioids such as oxycodone are orally self-administered and … ,
cocaine, methamphetamine, or morphine), prescription opioids are most often orally self-administered: …

… Our findings suggest that METH self-administered during adolescence impairs PFC-…
colleagues [29] reported opposing directions of effect of cocaine injections during adolescence on …

… Intensity of effects, dependence, and craving are strongly influenced by the way in which
the drug is self-administered. Compulsive use, besides chemical dependence, can make …