An unprecedented brain study has delivered fresh clues about consciousness—suggesting it's more about perception than planning. Two leading theories went head-to-head, but neither emerged victorious.

The debate over AI consciousness is back. Mustafa Suleyman, a leading AI executive, recently said that “seemingly conscious AI” is on the horizon. These are systems that, through ongoing enhancements ...

Psychology, it’s said, has a long past but a short history. A popular version lists three stages. First, around the turn of the 20th century, psychologists tried to capture the stream of conscious ...