Sharing a flashback (Image: Coneyl Jay/SPL)

WHAT are you thinking about? Which memory are you reliving right now? You may think that only you can answer, but by combining brain scans with pattern-detection software, neuroscientists are prying open a window into the human mind.

In the last few years, patterns in brain activity have been used to successfully predict what pictures people are looking at, their location in a virtual environment or a decision they are poised to make. The most recent results show that researchers can now recreate moving images that volunteers are viewing – and even make …