I reported in my Free Will? book that we can laser in memories to fruit flies, so it was only a matter of time before such procedures were contextualised to humans. Scientific American reports:
So you might well have caught this on various science websites, but the thoughts of a fish, a zebrafish, have been caught on camera. As Gizmodo report:
A team of Japanese researchers has achieved something incredible: they’ve captured, for the first time ever, a movie which shows how thoughts form in the brain.