Accession Number : ADA411770


Title :   Multiple Color Stimulus Induced Steady State Visual Evoked Potentials


Corporate Author : TSINGHUA UNIV BEIJING (CHINA) INST OF BIOMEDICAL ENGINEERING


Personal Author(s) : Cheng, M ; Gao, X ; Gao, S ; Xu, D


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a411770.pdf


Report Date : 25 Oct 2001


Pagination or Media Count : 4


Abstract : Steady state visual evoked potentials (SSVEP) are of the characteristics of high SNR and effectiveness in short-term identification of evoked responses. In most of the SSVEP experiments, single high frequency stimuli are used. To characterize the complex rhythms in SSVEP, a new multiple color stimulus pattern is proposed in this paper FFT and bispectrum analysis methods are used to detect the phase coupling of the two stimulation frequencies in the recorded SSVEP. The results show that the rhythms at the duplation, sum or difference of the two stimulation frequencies can be evoked by multiple color stimulus.


Descriptors :   *STEADY STATE , *STIMULATION(PHYSIOLOGY) , *COLORS , *VISUAL PERCEPTION , *VISUAL SIGNALS , COUPLING(INTERACTION) , FREQUENCY , HIGH FREQUENCY , IDENTIFICATION , SHORT RANGE(TIME) , STIMULI , CHINA


Subject Categories : Anatomy and Physiology
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE