Brainstorm or Green Needle?

The question in the title sounds like we are going to name a new superhero. No, this is another audio illusion that might freak you out a bit. A toy says "brainstorm." Or maybe it says "green needle." You need to decide which one it is before you play the video. Then play it again, thinking about the other option. Keep your finger on the replay button (bottom left on the video), and you'll find that this toy says what you expect it to say, even if you change your mind between plays. Some people hear "green storm" or "brain needle," but that's because they chose to hear it. For some science behind the phenomena, and the actual answer to what this toy is saying, go to HuffPo. (via Geekologie)