What does kelp do to the brain?

I'm curious to know, what exactly does kelp do for the brain? Could you elaborate on its potential benefits? I've heard that kelp contains nutrients that might be beneficial for cognitive health, but I'm not quite sure how it works. Could you please provide a detailed explanation of how kelp might influence the brain positively? Also, are there any scientific studies or research papers that support these claims? I'm quite interested in learning more about this topic.