Department of Electronic Engineering, Center for Intelligent Medical Electronics, Fudan University, 200433 Shanghai, China.
Neural Plast. 2020 Nov 21;2020:8833134. doi: 10.1155/2020/8833134. eCollection 2020.
Acting as a brain stimulant, coffee resulted in heightening alertness, keeping arousal, improving executive speed, maintaining vigilance, and promoting memory, which are associated with attention, mood, and cognitive function. Functional near-infrared spectroscopy (fNIRS) is a noninvasive optical method to monitor brain activity by measuring the absorption of the near-infrared light through the intact skull. This study is aimed at acquiring brain activation during executing task performance. The aim is to explore the effect of coffee on cognitive function by the fNIRS neuroimaging method, particularly on the prefrontal cortex regions. The behavioral experimental results on 31 healthy subjects with a Stroop task indicate that coffee can easily and effectively modulate the execute task performance by feedback information of the response time and accuracy rate. The findings of fNIRS showed that apparent hemodynamic changes were detected in the bilateral VLPFC regions and the brain activation regions varied with different coffee conditions.
作为一种大脑刺激物，咖啡能提高警觉性、保持兴奋、提高执行速度、保持警觉并促进记忆，这些都与注意力、情绪和认知功能有关。功能近红外光谱 (fNIRS) 是一种通过测量近红外光穿过完整头骨的吸收来监测大脑活动的非侵入性光学方法。本研究旨在获取执行任务时的大脑激活。目的是通过 fNIRS 神经影像学方法探索咖啡对认知功能的影响，特别是对前额叶皮层区域的影响。31 名健康受试者在 Stroop 任务中的行为实验结果表明，咖啡可以通过反馈信息（反应时间和准确率）轻松有效地调节执行任务的表现。fNIRS 的结果表明，在双侧 VLPFC 区域和大脑激活区域都检测到了明显的血液动力学变化，并且这些区域的变化与不同的咖啡条件有关。
