OpenViBE forum

I recorded some data from the Cognionics and sent it in real-time to OpenVibe via LSL. From OpenVibe I am are recording data from 3 channels at 500 Hz. However I am getting this type of signal in the time domain (image below) which has repeated values. Did anyone encounter same problem?

I am interested in purchasing the Neurosky MindWave device. Would I be able to view the raw data using OpenVibe and export it ex. in CSV format to use it in Matlab? Or do I necessary require to purchase Neurosky's Research tools to access the RAW data?