FIGURE 1.
Loop of online data streaming during Neurofeedback. (A) Signals from scalp-, macro-, and/or microelectrodes are pre-amplified locally and sent to the acquisition system. (B) All electrodes are recorded and stored on the local computer. (C) Data is read by another device, where online analysis is performed (frequency filtering, spike detection, spike sorting) in time bins of 0.5 s. (D) Processed data is presented to the subject in form of a graphical, moving object, or sound changing in frequency according to the recorded activity. (E) Subject controls the graphical object by influencing his brain activity through subjective experience.