scholarly journals Ventral Striatal D2/3 Receptor Availability Is Associated with Impulsive Choice Behavior As Well As Limbic Corticostriatal Connectivity

2018 ◽  
Vol 21 (7) ◽  
pp. 705-715 ◽  
Author(s):  
Rebecca L Barlow ◽  
Martin Gorges ◽  
Alfie Wearn ◽  
Heiko G Niessen ◽  
Jan Kassubek ◽  
...  
Author(s):  
Jennifer R. Peterson ◽  
Catherine C. Hill ◽  
Andrew T. Marshall ◽  
Sarah L. Stuebing ◽  
Kimberly Kirkpatrick

AbstractImpulsive choice behavior occurs when individuals make choices without regard for future consequences. This behavior is often maladaptive and is a common symptom in many disorders, including drug abuse, compulsive gambling, and obesity. Several proposed mechanisms may influence impulsive choice behavior. These mechanisms provide a variety of pathways that may provide the basis for individual differences that are often evident when measuring choice behavior. This review provides an overview of these different pathways to impulsive choice, and the behavioral intervention strategies being developed to moderate impulsive choice. Because of the compelling link between impulsive choice behavior and the near-epidemic pervasiveness of obesity in the United States, we focus on the relationship between impulsive choice behavior and obesity as a test case for application of the multiple pathways approach. Choosing immediate gratification over healthier long term food choices is a contributing factor to the obesity crisis. Behavioral interventions can lead to more self-controlled choices in a rat pre-clinical model, suggesting a possible gateway for translation to human populations. Designing and implementing effective impulsive choice interventions is crucial to improving the overall health and well-being of impulsive individuals.


eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Caesar M Hernandez ◽  
Caitlin A Orsini ◽  
Chase C Labiste ◽  
Alexa-Rae Wheeler ◽  
Tyler W Ten Eyck ◽  
...  

Across species, aging is associated with an increased ability to choose delayed over immediate gratification. These experiments used young and aged rats to test the role of the basolateral amygdala (BLA) in intertemporal decision making. An optogenetic approach was used to inactivate the BLA in young and aged rats at discrete time points during choices between levers that yielded a small, immediate vs. a large, delayed food reward. BLA inactivation just prior to decisions attenuated impulsive choice in both young and aged rats. In contrast, inactivation during receipt of the small, immediate reward increased impulsive choice in young rats but had no effect in aged rats. BLA inactivation during the delay or intertrial interval had no effect at either age. These data demonstrate that the BLA plays multiple, temporally distinct roles during intertemporal choice, and show that the contribution of BLA to choice behavior changes across the lifespan.


2011 ◽  
Author(s):  
Tiffany Galtress ◽  
Angela Crumer ◽  
Ana Garcia ◽  
Kimberly Kirkpatrick

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