Measurement Electroencephalogram (EEG) activity through the device NeuroSky MindWave , detects wave's type and analyzes data patterns with neural networks.
http://store.neurosky.com/products/pc-developer-tools
NeuroSky MindWave Mobile BrainWave
https://www.amazon.com/NeuroSky-MindWave-Mobile-BrainWave-Starter/dp/B00B8BF4EM/
Simply import source in Visual Studio