Steady-state visual evoked potentials (S-VEP) have been used to derive temporal frequency characteristics, which are effective in detecting sensitivity loss for high frequency stimuli in early glaucoma. However, this method requires independent measurements of VEP for various frequencies. In this study, an improved technique using pseudorandom binary sequence (PRBS) stimulation to elicit VEP (PRBS-VEP) was proposed and compare with S-VEP. Regional cerebral blood flow (CBF) was also measured with positron emission tomography, and its response to stimulation was compared with the VEP. Results showed that PRBS-VEP yielded temporal frequency characteristics similar to those obtained by S-VEP, but in a much shorter time. Furthermore, CBF response in the primary visual cortex was well correlated with the VEP amplitude, suggesting that VEP originate in the primary visual cortex.
|ジャーナル||Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings|
|出版ステータス||Published - 1997 12 1|
|イベント||Proceedings of the 1997 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, USA|
継続期間: 1997 10 30 → 1997 11 2
ASJC Scopus subject areas
- コンピュータ ビジョンおよびパターン認識