Mar AC, Robbins TW (2007) “Delay discounting and impulsive choice in the rat.” Curr Protoc Neurosci Chapter 8:Unit 8.22
Delay discounting refers to the degree to which immediate outcomes exhibit more influence over behavior than outcomes which are delayed. Impulsive choice, in the context of delay discounting, is generally considered as an increased preference for immediate over delayed outcomes, even where the delayed outcomes are more advantageous. In the past decade, there has been increasing use of delay-discounting paradigms to elucidate the physiological, pharmacological, and behavioral aspects of the putative neural circuitry underlying impulsive choice. This unit describes the assessment of impulsive choice in the rat using a delay-discounting procedure involving an operant response choice between a small reinforcer delivered immediately and a larger reinforcer delivered after a delay, which is progressively increased within a session. Variations of some of the main task parameters are also discussed, as well as their significance and interpretation.
|Online links:||Available online from John Wiley & Sons, Inc.|
|Publication type:||Journal Article|
|Publication status:||In print|
|Publication date:||2007 Apr|
|Record status:||PubMed - indexed for MEDLINE|