Mobile Phone Chips Reduce Increases in EEG Brain Activity Induced by Mobile Phone-Emitted Electromagnetic Fields.
Mobile Phone Chips Reduce Increases in EEG Brain Activity Induced by Mobile Phone-Emitted Electromagnetic Fields.
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DOI：
10.3389/fnins.2018.00190
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发表时间：
2018
影响因子：
4.3
通讯作者：
Poeggeler B
中科院分区：
文献类型：
--
作者：
Henz D;Schöllhorn WI;Poeggeler B
最近的神经生理学研究表明，暴露于手机辐射产生的电磁场（EMF）会对大脑活动产生影响。一种减少移动电话使用中的电磁场影响的技术解决方案是在移动电话芯片中提供，该移动电话芯片被应用到移动电话或附着到移动电话的表面。迄今为止，还没有关于手机芯片应用对大脑活动的影响及其潜在神经机制的系统研究。本研究在实验室研究中调查了应用于手机的手机芯片是否可以减少手机辐射发出的电磁场对脑电图（EEG）大脑活动的影响。三十名参与者自愿参与本研究。实验条件（手机芯片、安慰剂芯片、无芯片）是在受试者内随机设计中设置的。在静息条件下，记录手机接触前后两个 2 分钟序列的自发脑电图。在手机暴露期间，在休息条件下记录自发脑电图 30 分钟，在进行注意力测试 (d2-R) 期间记录 5 分钟。结果显示，在安慰剂和无芯片条件下，EMF 暴露期间，θ、α、β 和 γ 波段的活性增加。手机芯片的应用显着降低了电磁场对脑电图大脑活动和注意力表现的影响。关于编辑的字符数量，注意力的表现水平保持不变。此外，偶极子分析揭示了与安慰剂芯片和无芯片条件相比，芯片条件下不同的潜在激活模式。最后，脑电图频段和电磁高频 (HF) 发射的相关性分析显示，安慰剂芯片和无芯片条件下的 θ、α、β 和 γ 频段存在显着相关性。在芯片条件下，HF 与 θ 和 α 波段显着相关，但与 β 和 γ 波段不显着相关。我们假设脑电图 β 和 γ 激活的减少构成了手机芯片使用中的关键神经机制，该机制在一定程度上支持大脑在手机使用过程中保持其自然活动和性能水平。
Recent neurophysiological studies indicate that exposure to electromagnetic fields (EMFs) generated by mobile phone radiation can exert effects on brain activity. One technical solution to reduce effects of EMFs in mobile phone use is provided in mobile phone chips that are applied to mobile phones or attached to their surfaces. To date, there are no systematical studies on the effects of mobile phone chip application on brain activity and the underlying neural mechanisms. The present study investigated whether mobile phone chips that are applied to mobile phones reduce effects of EMFs emitted by mobile phone radiation on electroencephalographic (EEG) brain activity in a laboratory study. Thirty participants volunteered in the present study. Experimental conditions (mobile phone chip, placebo chip, no chip) were set up in a randomized within-subjects design. Spontaneous EEG was recorded before and after mobile phone exposure for two 2-min sequences at resting conditions. During mobile phone exposure, spontaneous EEG was recorded for 30 min during resting conditions, and 5 min during performance of an attention test (d2-R). Results showed increased activity in the theta, alpha, beta and gamma bands during EMF exposure in the placebo and no chip conditions. Application of the mobile phone chip reduced effects of EMFs on EEG brain activity and attentional performance significantly. Attentional performance level was maintained regarding number of edited characters. Further, a dipole analysis revealed different underlying activation patterns in the chip condition compared to the placebo chip and no chip conditions. Finally, a correlational analysis for the EEG frequency bands and electromagnetic high-frequency (HF) emission showed significant correlations in the placebo chip and no chip condition for the theta, alpha, beta, and gamma bands. In the chip condition, a significant correlation of HF with the theta and alpha bands, but not with the beta and gamma bands was shown. We hypothesize that a reduction of EEG beta and gamma activation constitutes the key neural mechanism in mobile phone chip use that supports the brain to a degree in maintaining its natural activity and performance level during mobile phone use.
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影响因子：
3.7
作者：
Byun YH;Ha M;Kwon HJ;Hong YC;Leem JH;Sakong J;Kim SY;Lee CG;Kang D;Choi HD;Kim N
通讯作者：
Kim N
影响因子：
2.7
作者：
Jadidi, Majid;Firoozabadi, Seyed Mohammad;Taherian, Abbas Ali
通讯作者：
Taherian, Abbas Ali
影响因子：
3.5
作者：
Luis Relova, Jose;Pertega, Sonia;Ares-Pena, Francisco
通讯作者：
Ares-Pena, Francisco
影响因子：
2.5
作者：
Borbély, AA;Huber, R;Achermann, P
通讯作者：
Achermann, P
影响因子：
1.9
作者：
Croft, R. J.;Leung, S.;Cooper, N. R.
通讯作者：
Cooper, N. R.