ArticlePsychopharmacology2021
The effects of voluntary adolescent alcohol consumption on alcohol taste reactivity in Long Evans rats.
Article in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Effects of Voluntary Ingestion of Synthetic Delta-9-Tetrahydrocannabinol on the Hedonic Value of Rewarding and Aversive Substances and CB1 Receptor Expression.Cannabis and cannabinoid research · 2026Article
- The Continuing Challenges of Studying Parallel Behaviours in Humans and Animal Models.Current topics in behavioral neurosciences · 2025Review
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Funding
Abstract
rationaleThe relationship between age, ethanol intake, and the hedonic value of ethanol is key to understanding the motivation to consume ethanol.
objectiveIt is uncertain whether ethanol drinking during adolescence changes ethanol's hedonic value into adulthood.
methodsThe current study compared voluntary intermittent ethanol consumption (IAE; 2-bottle choice; 20%v/v) among adolescent and adult Long-Evans rats to examine the effects of age and IAE on taste reactivity in adulthood. For taste reactivity, orally infused fluids included water, ethanol (5, 20, and 40%v/v), and sucrose (0.01, 0.1, 1M).
resultsIAE results indicate that adolescents drank more ethanol during IAE but had a lower rate of change in ethanol consumption across time than adults due to initially high adolescent drinking. During taste reactivity testing for ethanol, IAE rats had greater hedonic responding, less aversive responding, and a more positive relationship between hedonic responses and ethanol concentration than water-receiving control rats. Hedonic responses had positive, while aversive responses had negative relationships with ethanol concentration and total ethanol consumed during IAE. Adolescent+IAE rats displayed less hedonic and more aversive responses to ethanol than Adult+IAE rats. Sucrose responding was unrelated to ethanol consumption.
conclusionsThese results suggest that ethanol consumption influences the future hedonic and aversive value of ethanol in a way that makes ethanol more palatable with greater prior consumption. However, it appears that those drinking ethanol as adolescents may be more resistant to this palatability shift than those first drinking as adults, suggesting different mechanisms of vulnerability to consumption escalation for adolescents and adults.
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