When programmers encounter puzzling code, their brains react in measurable ways. Now, researchers have shown that large language models (LLMs) exhibit similar signs of confusion when reading the same code. In a study from Saarland University and the Max Planck Institute for Software Systems, scientists compared human brain activity with LLM uncertainty and found striking alignment. Wherever humans struggled, the models did too. This discovery, described in the paper “How do Humans and LLMs P
