New York University researchers have trained an AI model to learn chemical patterns associated with stability in drug-like molecules and accurately predict where their hydrogen atoms should be positioned.

Their research, published in the journal Chemical Science, addresses a longstanding challenge in molecular design and drug discovery: how to rapidly and reliably determine the stable form of molecules that share a molecular formula but readily convert into different forms. 

Virginia Tech researchers found that mice hearing a sound associated with danger moved closer to familiar companions, but not strangers. The study identifies oxytocin signaling and a brain connection between the amygdala and hippocampus as essential to this response, offering insight into how learned threats drive animals to seek safety.