Dear Carol: I’m my mom’s only daughter, so we are close. Mom was recently diagnosed with mixed dementia, so I moved her in with me and I’m trying to learn how to care for her. She’s always been a ...

It’s one of the world’s worst-kept secrets that large language models give blatantly false answers to queries and do so with a confidence that’s indistinguishable from when they get things right.

Confabulation is a striking symptom of some kinds of brain damage. Patients tell often fantastic stories about things that have happened to them, or that are going on now. It's a classic sign of ...