Sustained decrease in oxygenated hemoglobin during video games in the dorsal prefrontal cortex: A NIRS study of children
Sustained decrease in oxygenated hemoglobin during video games in the dorsal prefrontal cortex: A NIRS study of children
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DOI：
10.1016/j.neuroimage.2005.08.019
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发表时间：
2006-02-01
期刊：
影响因子：
5.7
通讯作者：
Hiraki, K
中科院分区：
文献类型：
--
作者：
Matsuda, G;Hiraki, K
传统的神经影像学研究主要集中在来自简单刺激和任务的大脑活动。因此，人们对日常活动中的大脑活动知之甚少。本研究应用近红外光谱技术，观察了电子游戏对大鼠背侧前额叶皮层（DPFC）血流动力学的影响。先前有报道称，在长时间玩游戏的过程中，成年人DPFC中的氧合血红蛋白（oxygenated hemoglobin，oxyHb）减少。在本研究中，我们检查了是否在儿童中观察到类似的变化。20名儿童（7-14岁）参加了我们的研究，但最终只有13人接受分析。他们玩了一个或两个市售的视频游戏，即战斗和益智游戏，为5分钟。我们使用的oxyHb浓度的变化作为大脑活动的指标，因此，大多数儿童表现出持续的游戏相关的oxyHb减少DPFC。儿童在玩电子游戏期间的oxyHb减少模式与成人没有差异。年龄或比赛成绩与oxyHb变化之间无显著相关性。这些研究结果表明，游戏相关的oxyHb减少DPFC是一种常见的现象，成人和儿童至少大于7岁，我们认为，这可能是由于注意力需求的视频游戏，而不是受试者的年龄和性能。(c)2005年爱思唯尔公司All rights reserved.
Traditional neuroimaging studies have mainly focused on brain activity derived from a simple stimulus and task. Therefore, little is known about brain activity during daily operations. In this study, we investigated hemodynamic changes in the dorsal prefrontal cortex (DPFC) (luring video games as one of daily amusements, using near infrared spectroscopy technique. It was previously reported that oxygenated hemoglobin (oxyHb) in adults' DPFC decreased during prolonged game playing time. In the present study, we examined whether similar changes were observed in children.Twenty children (7-14 years old) participated in our study, but only 13 of them were eventually subject to analysis. They played one or two commercially available video games; namely a fighting and a puzzle game, for 5 min. We used changes in concentration of oxyHb as an indicator of brain activity and consequently, most of the children exhibited a sustained game-related oxyHb decrease in DPFC. Decrease patterns of oxyHb in children during video game playing time did not differ from those in adults. There was no significant correlation between ages or game performances and changes in oxyHb. These findings suggest that game-related oxyHb decrease in DPFC is a common phenomenon to adults and children at least older than 7 years old, and we suggest that this probably results from attention demand from the video games rather than from subject's age and performance. (c) 2005 Elsevier Inc. All rights reserved.