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Googling Away our Fear: Big Data Analyses on Anxiety

Records of Internet search are increasingly used in behavioral science. Four studies reported here used Google search data from Japan to investigate whether frequency of searching anxiety-related words was associated with anxiety in the population. Our results indicated that search volume of anxiety-related terms increased following the Great East Japan Earthquake of 2011 (Study 1) and during the spring months when many in the country adjust to new social environment (Study 2). Moreover, while the search volume was correlated with self-reported anxiety, longer-term trends of the search data and self-reported data did not converge (Study 3). A follow-up analysis suggested that the increasing search volume was more pronounced in metropolises due to higher residential mobility (Study 4). Implications are discussed.