Ng Tze Pin, Lim May Li, Niti Mathew, Collinson Simon
Gerontological Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
Bioelectromagnetics. 2012 Feb;33(2):176-85. doi: 10.1002/bem.20698. Epub 2011 Aug 31.
Research on long-term exposure to electromagnetic fields on cognition is lacking. We investigated the associations between frequent digital mobile phone use and global and domain-specific cognitive changes in older persons, a vulnerable group experiencing age-associated cognitive decline. We assessed 871 non-demented Chinese participants in the Singapore Longitudinal Ageing Studies cohort on the frequency of digital mobile phone use, neurocognitive performance and confounding variables at baseline, and neurocognitive performance at the 4-year follow-up. Findings showed that digital mobile phone users were typically self-selected to possess characteristics favoring better cognitive functioning and concomitantly demonstrate better performance on cognitive tasks. There was evidently no significant deleterious effect of digital mobile phone use on cognitive functioning in older people. Findings suggest, however, that digital mobile phone use may have an independent facilitating effect on global and executive functioning.
关于长期暴露于电磁场对认知影响的研究尚属空白。我们调查了频繁使用数字移动电话与老年人整体及特定领域认知变化之间的关联，老年人是经历与年龄相关认知衰退的弱势群体。我们在新加坡纵向老龄化研究队列中评估了871名无痴呆的中国参与者，了解他们在基线时数字移动电话的使用频率、神经认知表现和混杂变量，以及在4年随访时的神经认知表现。研究结果表明，数字移动电话用户通常是自我选择的，具有有利于更好认知功能的特征，并在认知任务中表现出更好的成绩。显然，使用数字移动电话对老年人的认知功能没有显著的有害影响。然而，研究结果表明，使用数字移动电话可能对整体和执行功能有独立的促进作用。
