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MacKillop, James – Journal of the Experimental Analysis of Behavior, 2013
Delayed reward discounting is a behavioral economic index of impulsivity, referring to how much an individual devalues a reward based on its delay in time. As a behavioral process that varies considerably across individuals, delay discounting has been studied extensively as a model for self-control, both in the general population and in clinical…
Descriptors: Addictive Behavior, Rewards, Self Control, Genetics
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Madden, Gregory J.; Smith, Nathaniel G.; Brewer, Adam T.; Pinkston, Jonathan W.; Johnson, Patrick S. – Journal of the Experimental Analysis of Behavior, 2008
Previous research has shown that Lewis rats make more impulsive choices than Fischer 344 rats. Such strain-related differences in choice are important as they may provide an avenue for exploring genetic and neurochemical contributions to impulsive choice. The present systematic replication was designed to determine if these findings could be…
Descriptors: Reinforcement, Individual Characteristics, Animals, Animal Behavior