Krause Christina M, Björnberg Christian Haarala, Pesonen Mirka, Hulten Annika, Liesivuori Tiia, Koivisto Mika, Revonsuo Antti, Laine Matti, Hämäläinen Heikki
Cognitive Science Unit, Department of Psychology, University of Helsinki, Helsinki. Finland. christina.krause@
Int J Radiat Biol. 2006 Jun;82(6):443-50. doi: 10.1080/09553000600840922.
To assess the effects of electromagnetic fields (EMF) emitted by mobile phones (MP) on the 1 - 20 Hz event-related brain oscillatory EEG (electroencephalogram) responses in children performing an auditory memory task (encoding and recognition).
EEG data were gathered while 15 subjects (age 10 - 14 years) performed an auditory memory task both with and without exposure to a digital 902 MHz MP in counterbalanced order.
During memory encoding, the active MP modulated the event-related desynchronization/synchronization (ERD/ERS) responses in the approximately 4 - 8 Hz EEG frequencies. During recognition, the active MP transformed these brain oscillatory responses in the approximately 4 - 8 Hz and approximately 15 Hz frequencies.
The current findings suggest that EMF emitted by mobile phones has effects on brain oscillatory responses during cognitive processing in children.
评估手机(MP)发出的电磁场(EMF)对执行听觉记忆任务(编码和识别)的儿童1 - 20赫兹事件相关脑振荡脑电图(EEG)反应的影响。
15名受试者(年龄10 - 14岁)以平衡顺序在暴露于数字902兆赫手机和未暴露于手机的情况下执行听觉记忆任务时收集脑电图数据。
在记忆编码期间,开启的手机在约4 - 8赫兹脑电图频率中调制了事件相关去同步化/同步化(ERD/ERS)反应。在识别期间,开启的手机改变了约4 - 8赫兹和约15赫兹频率中的这些脑振荡反应。
目前的研究结果表明,手机发出的电磁场在儿童认知处理过程中对脑振荡反应有影响。