Title :
A periodogram-based method for the detection of steady-state visually evoked potentials
Author :
Liavas, Athanasios P. ; Moustakides, George V. ; Henning, Gunter ; Psarakis, Emmanuil Z. ; Husar, Peter
Author_Institution :
Dept. SIM, Inst. Nat. des Telecommun., Evry, France
Abstract :
The task of objective perimetry is to scan the visual field and find an answer about the function of the visual system. Flicker-burst stimulation-a physiological sensible combination of transient and steady-state stimulation-is used to generate deterministic sinusoidal responses or visually evoked potentials (VEPs) at the visual cortex, which are derived from the electroencephalogram by a suitable electrode array. Here, the authors develop a new method for the detection of VEPs. Based on the periodogram of a time-series, they test the data for the presence of hidden periodic components, which correspond to steady-state VEPs. The method is applied successfully to real data.
Keywords :
medical signal processing; signal detection; time series; visual evoked potentials; deterministic sinusoidal responses; electrode array; flicker-burst stimulation; hidden periodic components; objective perimetry; periodogram-based method; steady-state stimulation; steady-state visually evoked potentials detection; transient stimulation; visual cortex; visual field scanning; Biomedical engineering; Biomedical informatics; Biomedical signal processing; Electrodes; Electroencephalography; Frequency; Helium; Steady-state; Testing; Visual system; Electroencephalography; Evoked Potentials, Visual; Models, Neurological; Models, Statistical; Periodicity; Probability; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
