This investigation introduces a hybrid auditory BCI that utilizes and combines auditory steady state response (ASSR) and spatial-auditory P300 BCI to improve the performance for the auditory BCI system. The system works by simultaneously presenting auditory stimuli with different pitches and amplitude modulation (AM) frequencies to the user with beep sounds occurring randomly between all sound sources. Attention to different auditory stimuli yields different ASSR and beep sounds trigger the P300 response when they occur in the target channel, thus the system can utilize both features for classification.
Related publications
N Kaongoen, S Jo, A Novel Hybrid Auditory BCI Paradigm Combining ASSR and P300, Journal of Neuroscience Methods, 279:44-51, 2017 [LINK] [PDF]
