SYSTEM AND METHOD FOR SSVEP BASED CONTROL OF ELECTRICAL DEVICES

摘要

In a system for SSVEP based electrical device control, a user state detection module can detect user behaviour such as an eyes closed state across a particular time interval. A system control unit can responsively activate a set of visual stimulus generators. Each visual stimulus generator can output visual signals at a unique presentation frequency. A user can selectively direct their visual attention to a particular visual stimulus generator associated with a specific electrical device or interface while an EEG acquisition unit captures EEG signals corresponding to SSVEPs generated by the user's brain. A device identification module generates EEG power spectral amplitude data corresponding to particular fundamental frequencies F k, determines a dominant frequency F D , and identifies a visual stimulus generator that output visual stimuli at a presentation frequency equal to F D . The system control unit communicates an electrical device control command to a multi-device interface unit, which changes an operational state of an electrical device associated with the identified visual stimulus generator.