ArticleScientific reports2025
Individual and sex differences in frontloading behavior and approach- avoidance conflict preference predict addiction-like ethanol seeking in rats.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Sex-dependent role of the ventral hippocampus, but not its projection to the medial prefrontal cortex, in a novel operant conflict-driven ethanol choice task.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026Article
- Marked sex differences are observed in heroin acquisition and affective states in rats but converge to similar levels of footshock stress-induced reinstatement.Psychopharmacology · 2026Article
- Substance use disorders and addictions.Scientific reports · 2026Article
- Procedural separation of appetitive and consummatory behaviors in operant ethanol self-administration: A review and open-source analytical framework.Alcohol, clinical & experimental research · 2026Review
- Patterns of chronic ethanol drinking in male and female cynomolgus monkeys.Alcohol, clinical & experimental research · 2026Article
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Authors and funding
4 authors.
Funding
Abstract
Recent research has identified sex-dependent links between risk taking behaviors, approach-avoidance bias and alcohol intake. However, preclinical studies have typically assessed alcohol drinking using a singular dimension of intake (i.e. drinking level), failing to capture the multidimensional pattern of aberrant alcohol-seeking observed in alcohol use disorder. In this study, we sought to further explore individual and sex differences in the relationship between approach-avoidance bias, frontloading (bingeing and onset skew) and multiple addiction-like indices of ethanol seeking that included motivation for ethanol, persistence despite its absence (extinction), and ethanol-taking in the face of mild footshock. We found that female rats displayed more addiction-like phenotypes than males overall, and that frontloading patterns differed by sex, with females outdrinking males in the early part of access sessions (bingeing), but males strongly concentrating their lever pressing for ethanol in that period (onset skew). Multiple regression analyses revealed that bingeing was a strong positive predictor and onset skew a negative predictor of motivational breakpoint. Cued-conflict preference - a measure of approach-avoidance bias towards a mixed-valence conflict cue - was predictive of both extinction and footshock in males, but not females. Our data highlight key sex differences, and the relevance of both frontloading patterns and conflict preference in predicting future addiction-like phenotypes.
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