Japanese research project team Nerowear's 'Necomimi' flops down as a visitor relaxes when she smells lavender oil at its promotional event in Tokyo May 8, 2011, in this combination pictures. The brainwave-controlled cat ears are raised when a user concentrates and flattened when a user relaxes. The strap-on cat ears have abilities to wiggle, twitch, perk up or flop down by responding to user's brainwaves. According to Nerowear, the machine can tell when users are relaxed and concentrate through the two internal brainwave censors on the device which they also have a plan to develop it as a fashion accessory which allows non-verbal communication.[Photo/Agencies]