Anthropic identifies AI persona drift and ties it to an “assistant axis”; tests across 275 roleplay characters, raising safety limits.

Neural stem cells (NSCs) are important for the development and regeneration of the nervous system. After the initial development of the brain, neural stem cells typically enter a dormant state, ...

Neuronal sequences in the medial prefrontal cortex of the brain encode critical information associated with a procedural rule. These sequences can be explored and leveraged as novel biomarkers for ...

Photonics is gaining momentum as a platform for high-speed AI computing. Researchers in Singapore have demonstrated a passive, ultrafast, and integration-ready all-optical nonlinear activation ...

Activation functions play a critical role in AI inference, helping to ferret out nonlinear behaviors in AI models. This makes them an integral part of any neural network, but nonlinear functions can ...

“I just can’t make it tonight. You have fun without me.” Across much of the animal kingdom, when infection strikes, social contact shuts down. A study headed by researchers at The Picower Institute ...

Researchers have developed photonic computing chips that overcome key limitations for a type of neural network known as a ...

A two-chip photonic neuromorphic system performs real time spiking reinforcement learning using only light, achieving ...