Do seasons have an influence on the incidence of depression? The use of an internet search engine query data as a proxy of human affect.
Do seasons have an influence on the incidence of depression? The use of an internet search engine query data as a proxy of human affect.
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DOI：
10.1371/journal.pone.0013728
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发表时间：
2010-10-28
期刊：
影响因子：
3.7
通讯作者：
Tsai SJ
中科院分区：
文献类型：
--
作者：
Yang AC;Huang NE;Peng CK;Tsai SJ
季节性抑郁症近年来引起了相当大的临床兴趣。尽管人们普遍认为，高纬度地区的人在冬天更容易情绪低落，但从未有证据表明，人类的情绪会在全球范围内受到季节变化的影响。本研究的目的是利用互联网搜索查询数据作为人类情感的标志和代理来调查大规模的季节性抑郁模式。我们的研究是基于一个公开的搜索引擎数据库，谷歌搜索洞察，它提供了从2004年1月1日到2009年6月30日每周搜索趋势的时间序列数据。我们应用了一种经验模式分解方法来分离全球54个地理区域中与健康相关的抑郁症搜索趋势的季节性成分。我们发现了南北半球相反的季节性低气压趋势；这一趋势与气温的季节变化显著相关（美国：r = - 0.872, p<0.001；澳大利亚：r = - 0.656, p<0.001）。基于对全球54个地质位置的搜索趋势分析，我们发现搜索凹陷与温度之间的相关性程度是纬度相关的（北半球：r = - 0.686; p<0.001；南半球：r = 0.871; p<0.0001）。我们的研究结果表明，高纬度地区的人们在互联网上对抑郁症的搜索更容易受到季节变化的影响，而这种现象在热带地区则不明显。这种现象在各个国家普遍存在，无论使用何种语言。这项研究为季节性抑郁症的流行病学提供了新颖的、基于互联网的证据。
Seasonal depression has generated considerable clinical interest in recent years. Despite a common belief that people in higher latitudes are more vulnerable to low mood during the winter, it has never been demonstrated that human's moods are subject to seasonal change on a global scale. The aim of this study was to investigate large-scale seasonal patterns of depression using Internet search query data as a signature and proxy of human affect. Our study was based on a publicly available search engine database, Google Insights for Search, which provides time series data of weekly search trends from January 1, 2004 to June 30, 2009. We applied an empirical mode decomposition method to isolate seasonal components of health-related search trends of depression in 54 geographic areas worldwide. We identified a seasonal trend of depression that was opposite between the northern and southern hemispheres; this trend was significantly correlated with seasonal oscillations of temperature (USA: r = −0.872, p<0.001; Australia: r = −0.656, p<0.001). Based on analyses of search trends over 54 geological locations worldwide, we found that the degree of correlation between searching for depression and temperature was latitude-dependent (northern hemisphere: r = −0.686; p<0.001; southern hemisphere: r = 0.871; p<0.0001). Our findings indicate that Internet searches for depression from people in higher latitudes are more vulnerable to seasonal change, whereas this phenomenon is obscured in tropical areas. This phenomenon exists universally across countries, regardless of language. This study provides novel, Internet-based evidence for the epidemiology of seasonal depression.
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影响因子：
64.8
作者：
Cummings, DAT;Irizarry, RA;Burke, DS
通讯作者：
Burke, DS
网络查询是综合症监测的来源。
影响因子：
3.7
作者：
Hulth A;Rydevik G;Linde A
通讯作者：
Linde A
DOI：
10.1056/nejmp0900702
发表时间：
2009-05-21
期刊：
The New England journal of medicine
影响因子：
--
作者：
Brownstein JS;Freifeld CC;Madoff LC
通讯作者：
Madoff LC
影响因子：
1.8
作者：
Kegel, Mogens;Dam, Henrik;Bjerregaard, Peter
通讯作者：
Bjerregaard, Peter
影响因子：
--
作者：
HONMA, KI;HONMA, S;FUKUDA, N
通讯作者：
FUKUDA, N