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Does temperature or sunshine mediate the effect of latitude on affective temperaments? A study of 5 regions in Japan

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タイトル: Does temperature or sunshine mediate the effect of latitude on affective temperaments? A study of 5 regions in Japan
著者: Inoue, Takeshi 著作を一覧する
Kohno, Kentaro 著作を一覧する
Baba, Hajime 著作を一覧する
Takeshima, Minoru 著作を一覧する
Honma, Hiroshi 著作を一覧する
Nakai, Yukiei 著作を一覧する
Suzuki, Toshihito 著作を一覧する
Hatano, Koji 著作を一覧する
Arai, Heii 著作を一覧する
Matsubara, Shigehiro 著作を一覧する
Kusumi, Ichiro 著作を一覧する
Terao, Takeshi 著作を一覧する
キーワード: Latitude
Hyperthymic temperament
発行日: 2015年 2月 1日
出版者: Elsevier
誌名: Journal of affective disorders
巻: 172
開始ページ: 141
終了ページ: 145
出版社 DOI: 10.1016/j.jad.2014.09.049
抄録: Background: Previously, we compared the hyperthymic scores of residents in Sapporo, Koshigaya, and Oita (which are located at latitudes of 43 degrees N, 36 degrees N, and 33 degrees N in Japan, respectively) using the Temperament Evaluation of Memphis, Pisa, Paris and San Diego-auto questionnaire version (TEMPS-A). We found that residents who lived at lower latitudes had higher hyperthymic temperament scores; however, the mechanism of the effect of latitude on hyperthymic temperament remained unclear. The current study examined the mediators of the latitude effect in additional regions with different annual temperatures and amounts of ambient sunshine. Methods: The Japanese archipelago stretches over 4000 km from north to south and has four large islands: Hokkaido, Honshu, Shikoku, and Kyushu. In addition to the TEMPS-A previously reported data collected at Sapporo (latitude 43 degrees N), Koshigaya (36 degrees N), and Oita (33 degrees N), we collected the TEMPS-A data of 189 and 106 residents from Takaoka (36 degrees N) and Obihiro (42 degrees N), respectively. Taken together, these five regions have different patterns (i.e., highs and lows) of annual ambient total sunshine (hours) and mean temperature (degrees C). The effect of latitude, sunshine, and temperature on affective temperaments was analyzed for five Japanese regions. Results: Multiple regression analyses revealed that latitude predicted significant variance in hyperthymic temperament. Ambient temperature, but not sunshine, significantly affected hyperthymic temperament. Limitations: The light exposure that residents actually received was not measured. The number of regions studied was limited. The findings might not generalize to residents across Japan or other countries. Conclusions: The present findings suggest that latitude affects hyperthymic temperament, and ambient temperature might mediate this effect. (C) 2014 Elsevier B.V. All rights reserved
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 井上 猛


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