EEG-to-tACS experiment one
Link to summary of preliminary results (it didn't work)
The first attempt I have made at transmitting a thought signal directly between humans using electronic means is this experiment. In it I recorded my brainwaves while performing a maze navigation task. I traversed each maze repeatedly, took the EEG signal from the 12th pass, and directly applied the recorded EEG signal from electrode AF3 via tACS to test subjects while showing them the recorded movement of my avatar onscreen. These test subjects then traversed the maze themselves and their performance was recorded. Subjects performed 30 mazes, being shown the path in each beforehand by an avatar onscreen while receiving either no stimulation, a double-speed playback recording of a maze-unrelated EEG, or the recording of my EEG while doing the maze after being trained. At the time of running the test software the sequence of stimulation/no stimulation/constrol stimulation was randomly generated and kept hidden from both the test subject and the test supervisor until the generation of the data file after the completion of the test.
This test suffered from a lack of reliable test subjects. I produced 15 copies of the Basic tACS device and shipped them to volunteers from around the internet, of which 13% sent back test data. It is necessary to form some sort of research alliance before doing this kind of experiment again in order to ensure an adequate supply of test subjects.
