Analysis of decay of Steady State Visual Evoked Potentials

Electroencephalography (EEG) is one of the methods of examining an electrical activity of the brain. One can analyze everyday functioning or response for particular stimuli. Such responses are called Evoked Potentials (EP), and when the stimuli are given with stationery frequency, they are Steady State Evoked Potentials (SSEP). In my presentation I will concentrate on Steady State Visual Evoked Potentials (SSVEP), which are commonly used in Brain – Computer Interfaces (BCIs). After characterizing the phenomenon I will describe the results of SSVEP experiment. I examined the decline of this potential caused by end of stimulation. Such research may help in improving the BCIs and in understanding the mechanism of creating SSVEP in brain.