Automatic pain face analysis in mice: Applied to a varied dataset with non-standardized conditions

This study introduces a deep learning model trained on a large, diverse dataset that outperforms human raters in automatically assessing Mouse Grimace Scale scores across varied strains and conditions, demonstrating that combining multiple subsets yields the most reliable performance for non-standardized pain assessment.

Andresen, N., Wöllhaf, M., Wilzopolski, J. + 14 more2026-02-18📄 animal behavior and cognition

Classifier architecture and data preprocessing jointly shape accelerometer-based behavioural inference

Using a free-ranging primate case study, this paper demonstrates that modern deep-learning architectures significantly outperform classical models in detecting rare animal behaviors, while revealing that preprocessing choices and global performance metrics alone are insufficient for reliable ecological inference, necessitating behavior-aware evaluation frameworks.

Brun, L., Rothrock, J. M. B., van de Waal, E. + 1 more2026-02-18📄 animal behavior and cognition

Multivariate Transfer Entropy Quantifies Information Transfer Between Dyadic Partners During Real-Time Perceptual Decision-Making

This study demonstrates that humans dynamically and adaptively integrate social information in real-time perceptual decision-making by selectively relying on partners' choices and confidence based on stimulus reliability and partner quality, utilizing multivariate transfer entropy to quantify these continuous information flows.

Fiorenza, J. P., Gnass, V., Schneider, F. + 5 more2026-02-18📄 animal behavior and cognition

Prenatal Stress Differentially Shapes Adult Behavior in Male and Female Offspring

Using a validated mouse model of gestational restraint stress, this study demonstrates that prenatal stress induces broad neurobehavioral disruptions in adult offspring while conferring distinct sex-specific vulnerabilities, with males exhibiting reduced social interaction and females showing greater impairments in fear extinction and a stronger preference for ethanol.

Dong, E., Chu, A., Gur, T. + 1 more2026-02-17📄 animal behavior and cognition

Stimulus prior and reward probability differentially affect response bias in perceptual decision making

Through five experiments with rats, this study demonstrates that reward probability influences perceptual decision bias more strongly than stimulus presentation probability due to higher learning rates, revealing that current decision-making models fail to capture these differential effects and suggesting that subjects explicitly represent prior probabilities or stimulus distributions.

Koss, C., Blanke, J.-H., de la Cuesta-Ferrer, L. + 2 more2026-02-17📄 animal behavior and cognition

Below-ground ants follow pheromones more quickly under dark conditions, but pheromones do not affect decision accuracy nor aggression

Using the below-ground ant *Tetramorium alpestre*, this study demonstrates that while dark conditions accelerate decision-making and artificial pheromones attract ants more strongly than natural ones, neither pheromones nor trail conditions influence decision accuracy or aggression, suggesting that behavioral test designs must align with species-specific lifestyles and that speed-accuracy trade-offs are highly context-dependent.

Krapf, P., Mitschke, M., Voellenklee, N. + 4 more2026-02-17📄 animal behavior and cognition