 So what they're saying is the alpha asymmetry. We just talked about the alpha waves. If there's asymmetry there, what happens? If it's off, it increases the likelihood of anxiety. So what this study did is it took a group of people and it tested, it did a pretest, which we call the map. That's a map. You're mapping the brain using an EEG, electroencephalogram, to take readings to map the brain. That's the step one, is you do a map. So you do a map. You find out these people, their alpha waves were off.