Dual-Frequency SSVEP Stimulation Using a Stereoscopic Display

This study aimed to investigate the feasibility of dual-frequency Steady-State Visual Evoked Potential (SSVEP) stimulation using a 3-D display and stereoscopic glasses. Participants were exposed to a repetitive visual stimulus flashing at different frequencies in the left and right views and the SSVEP responses were observed. The results suggest that the two stimulation frequencies can still be evident in the SSVEP response. In addition, the participant ratings showed no significant differences in fatigue, annoyance, discomfort or strangeness of the stimulation compared to conventional forms of stimulation. These results pave the way for further studies using stereoscopic dual-frequency stimulation and its potential for use in virtual reality and 3 D videogames.