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Training dairy cows with positive reinforcement can turn otherwise stressful events into play

A recent study in the Journal of Dairy Science found that training dairy cows with positive reinforcement can improve their emotional state and overall welfare. The researchers trained Holstein dairy heifers using food rewards and observed increased anticipatory behaviors and play, indicating a positive experience for the animals.

SourceElsevier·JournalJournal of Dairy Science·TypeExperimental study·DateMar 14, 2024

Fact-checking can influence recommender algorithms

A Cornell University study found that encouraging fact-checking on Reddit led to a drop in story rank by an average of minus-25 spots, causing stories to be missed by readers. The research suggests that collective efforts to improve information environments can influence algorithmic recommendations.

SourceCornell University·JournalScientific Reports·DateAug 2, 2023

Studying the OCD cycle

Researchers at Nara Institute of Science and Technology developed a new model of obsessive-compulsive disorder based on principles of reinforcement learning. The model suggests that imbalanced learning between reinforcement and punishment can lead to disordered behavior in OCD. This work helps explain how OCD develops and may be used t...