Measurement of temporal frequency characteristics of VEP using pseudorandom binary sequence and their correlation with cerebral blood flow in human visual cortex

Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136) Pub Date : 1997-12-01 DOI:10.1109/IEMBS.1997.756998

K. Momose, Y. Kimura, M. Kiyosawa, M. Senda, K. Komiya

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引用次数: 3

Abstract

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 VEPs for various frequencies. In this study, an improved technique using pseudorandom binary sequence (PRBS) stimulation to elicit VEPs (PRBS-VEP) was proposed and compared with the S-VEP. Regional cerebral blood flow (CBF) was also measured with positron emission tomography (PET), 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 VEPs originate in the primary visual cortex.

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伪随机二值序列测量VEP的时间频率特征及其与人视觉皮层脑血流量的相关性

稳态视觉诱发电位(S-VEP)被用来推导时间频率特征，这是检测早期青光眼高频刺激敏感性丧失的有效方法。然而，这种方法需要对不同频率的vep进行独立测量。本研究提出了一种改进的伪随机二值序列(PRBS)刺激诱发vep的方法(PRBS- vep)，并与S-VEP进行了比较。用正电子发射断层扫描(PET)测量脑血流(CBF)，并与VEP比较其对刺激的反应。结果表明，PRBS-VEP获得的时间频率特征与S-VEP相似，但所需时间短得多。此外，初级视觉皮层的CBF反应与VEP振幅有良好的相关性，表明VEP起源于初级视觉皮层。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 'Magnificent Milestones and Emerging Opportunities in Medical Engineering' (Cat. No.97CH36136)

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