Despite positive prior results obtained by using event-related potentials (ERPs) in psychiatric patients, they are not routinely used in the clinical setting. This may in part be due to problems regarding a lack of transportable equipment availability. It can be difficult for these patients to repeatedly visit electrophysiological laboratories. To address this issue, we propose using a new, fully portable device for visually evoked potentials (VEP) and cognitive function assessment, that can be used for quick examinations (https://www.veppeak.com). Our device, called “VEPpeak”, is built into a headset with a color LED visual stimulator. It weighs 390 g and is connected to a notebook (PC) with evaluation software via USB. In this pilot study, we verified the device's usability in 31 patients with schizophrenia. We used the oddball paradigm with the recognition of colors for the P300 wave and choice reaction time evaluation. The examination lasted only about ten minutes. The results indicated good reproducibility of large cognitive potentials (P300) with prolonged P300 latencies and reduced amplitudes in patients compared to 15 control subjects. The P300 latency and reaction time prolongation in patients correlated with their age and the sedative effect of the pharmacotherapy.

尽管先前通过在精神病患者中使用事件相关电位（ERP）获得了积极的结果，但它们并未在临床环境中常规使用。这可能部分是由于缺乏可移动设备的可用性造成的。这些患者可能很难反复访问电生理实验室。为了解决这个问题，我们建议使用一种新的、完全便携式的设备进行视觉诱发电位（VEP）和认知功能评估，可用于快速检查（https://www.veppeak.com）。我们的设备名为“VEPpeak”，内置于带有彩色 LED 视觉刺激器的耳机中。它重 390 克，通过 USB 连接到带有评估软件的笔记本电脑 (PC)。在这项试点研究中，我们验证了该设备在 31 名精神分裂症患者身上的可用性。我们使用奇怪的范例来识别 P300 波的颜色和选择反应时间评估。检查只持续了大约十分钟。结果表明，与 15 名对照受试者相比，患者的大认知电位 (P300) 具有良好的可重复性，P300 潜伏期延长且波幅降低。患者的 P300 潜伏期和反应时间延长与其年龄和药物治疗的镇静效果相关。