Phosphenes

Dr Sermed Mezher, an NHS doctor, explains in an Instagram post that seeing swirling patterns or flashes of light when closing your eyes is a normal experience, particularly common in childhood.

Scientists have used a direct brain-to-brain connection to enable pairs of participants almost 1.5 km apart to play a question-and-answer game by transmitting signals from one brain to the other over the Internet.

Dr Sermed Mezher, an NHS doctor, explains in an Instagram post that seeing swirling patterns or flashes of light when closing your eyes is a normal experience, particularly common in childhood.

Scientists have used a direct brain-to-brain connection to enable pairs of participants almost 1.5 km apart to play a question-and-answer game by transmitting signals from one brain to the other over the Internet.