Accessible Electroencephalograms (EEGs): A Comparative Review with OpenBCI’s Ultracortex Mark IV Headset

By evaluating the OpenBCI Ultracortex Mark IV EEG headset's affordability, accessibility, and accuracy, it can be compared to other commercial- and medical-grade EEGs that have been evaluated previously. Nine participants used the Ultracortex Mark IV for the P300 Speller classification task, with the accuracy being measured along with the time required to set up the Mark IV, the participants' comfort, and the participants' perceived ease of setup. These results were then compared to previous evaluations of other EEG headsets. The OpenBCI Ultracortex Mark IV's cost-effectiveness ratio is relatively low compared to the other EEG systems, and its ease of use and speed of set up are notably better than the other headsets being compared.