Animal models of binge drinking, current challenges to improve face validity

Area of Science:

• Neuroscience
• Psychobiology
• Public Health

Background:

• Binge drinking (BD) is a growing public health concern characterized by rapid, excessive alcohol consumption.
• Defining BD globally remains challenging, but drinking speed is a key behavioral component.
• Understanding the neurobiological and psychobiological underpinnings of BD is essential.

Purpose of the Study:

• To highlight the importance of developing valid animal models for binge drinking.
• To review current methodologies in preclinical BD research.
• To identify challenges and future directions for BD animal modeling.

Main Methods:

• Review of preclinical research methodologies for modeling binge drinking.
• Comparison of forced alcohol administration versus scheduled access paradigms.
• Discussion of validity criteria (face, construct, predictive) for animal models.

Main Results:

• Scheduled access to alcohol in animal models offers a more voluntary approach to excessive intake.
• This method can better replicate human intoxication signs compared to forced administration.
• Challenges remain in establishing robust face, construct, and predictive validity.

Conclusions:

• Animal models are vital for dissecting the complex mechanisms of binge drinking.
• Scheduled access represents a significant advancement in modeling voluntary excessive alcohol consumption.
• Future research must prioritize enhancing the validity of these models to ensure translatability to human behavior.