The jury’s still out on AI’s effectiveness as a learning tool, but research so far paints a grim picture. Using AI chatbots can impair critical thinking, result in lower brain activity during cognitive tasks, and has been linked to memory loss. There was one prominent study, however, that provided a glimmer of hope for AI advocates. Published in the journal Nature, it purported to show that using AI like OpenAI’s ChatGPT can have a “large positi…