Assessing delay discounting in mice.

Area of Science:

• Behavioral neuroscience
• Genetics
• Decision-making science

Background:

• Delay discounting, also known as intertemporal choice, describes the reduced valuation of delayed outcomes compared to immediate ones.
• Heightened delay discounting is a characteristic of various psychopathologies, including substance dependence, pathological gambling, ADHD, and conduct disorder.
• Evidence suggests a genetic component underlies delay discounting, with heritability observed in related disorders.

Purpose of the Study:

• To identify genes associated with the delay discounting decision-making process.
• To explore genetic correlates of heightened delay discounting behavior.
• To present a standardized protocol for inducing and analyzing delay discounting in mouse models.

Main Methods:

• Utilizing mouse models to investigate the genetic underpinnings of delay discounting.
• Implementing a specific protocol for generating delay discounting behavior in mice.
• Employing established analysis techniques for quantifying and interpreting discounting behavior.

Main Results:

• The study provides a framework for genetic research into delay discounting.
• The described protocol allows for the reliable induction of delay discounting behavior in mice.
• Analysis techniques are discussed for understanding the genetic influences on impulsive choice.

Conclusions:

• Mouse models are valuable tools for dissecting the genetic architecture of delay discounting.
• Understanding the genetic basis of delay discounting can offer insights into related psychopathologies.
• This work facilitates future research into the genetic and neural mechanisms of decision-making.