The purpose of this study was to examine the time course effects of extinction of cocaine self-administration behavior on proenkephalin (PENK) gene expression in caudate-putamen nucleus (ST), nucleus ...

The subjects were required to predict a recurring three-element binary pattern (RLL) under continuous reinforcement or under partial reinforcement on a variable-ratio schedule. Partial-reinforcement ...

One of the main influences on our behavior is the consequences of our actions, especially those that come shortly after we perform that action. For example, when a behavior is followed by positive and ...