心理学研究
Online ISSN : 1884-1082
Print ISSN : 0021-5236
東日本大震災時のネガティブ感情反応表出──大規模データによる検討──
三浦 麻子小森 政嗣松村 真宏前田 和甫
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論文ID: 86.13076

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In this article, we investigated the expression of emotional responses to the 2011 Great East Japan Earthquake by analyzing the frequency of negative emotional terms in tweets posted on Twitter, one of the most popular social media platforms. We focused on differences in time-series variations and diurnal changes between two kinds of disasters: natural disasters (earthquakes and tsunamis) and nuclear accidents. The number of tweets containing negative emotional responses increased sharply shortly after the first huge earthquake and decreased over time, whereas tweets about nuclear accidents showed no correlation with elapsed time. Expressions of anxiety about natural disasters had a circadian rhythm, with a peak at midnight, whereas expressions of anger about the nuclear accident were highly sensitive to critical events related to the accident. These findings were discussed in terms of similarities and differences compared to earlier studies on emotional responses in social media.

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© 2015 公益社団法人 日本心理学会

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Japanese Psychological Research
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