Welcome! You have reached the website for Daiki Hiramori. This site contains various information about my current research projects and other activities. If you have any questions, please feel free to contact me. Here is Hosei University’s official profile webpage.

ようこそ!こちらは平森大規(ひらもり だいき)のウェブサイトです。このサイトでは、現在の研究プロジェクトやその他の活動に関するさまざまな情報を掲載しております。何かご質問等ございましたら、どうぞお気軽にお問い合わせください。なお、日本語ページはこちら、ふりがなつきのページはこちら、法政大学の公式プロフィールページはこちらです。

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New Article on the Multidimensionality of Romantic Orientation Published in Gender and Sexuality

I published a co-authored journal article “Multidimensionality of Romantic Orientation among the Aromantic/Asexual Spectrum in Japan” in the journal Gender and Sexuality. In recent years, the aromantic/asexual spectrum has become more visible in Japan, and research on asexuality is increasing but remains limited. However, there is even less research on aromanticism. This study sheds a light on the multidimensionality of romantic orientation, an understudied topic in Japan and abroad.

Abstract: In recent years, the aromantic/asexual spectrum has become more visible in Japan, and research on sexual orientation among the aromantic/asexual spectrum remains limited but is increasing. However, there is extremely little research that focuses on romantic orientation. Studies on romantic orientation in Western countries tend to discuss aromanticism as one of the romantic orientations that asexual people possess. In Japan, on the other hand, the framing of romantic orientation in the aromantic/asexual spectrum community differs from that in Western countries, as the terminology in Japan occasionally labels someone “asexual” only if they are neither romantically nor sexually attracted to other people. Furthermore, extant quantitative research tends to be limited to discussions that rely on the dichotomy of aromantic or not, despite findings from community-based surveys that suggest romantic orientation is multifaceted, making it necessary to discuss various dimensions of romantic orientation. This study used the “Aromantic/Asexual Spectrum Survey 2020,” a web survey conducted by the Aro/Ace Survey Executive Committee, to examine the multidimensionality of romantic orientation by describing romantic identity, romantic attraction, and romantic desire. Findings indicated that the distributions of romantic attraction before and after self-identification as aro-ace differed by aromantic spectrum identity, such as alloromantic, aromantic, gray(a)romantic, demiromantic, lithromantic, and questioning. Differences by aromantic spectrum identity were also observed in the distributions of deep interest in a particular person, romantic excitement, and the desire to date. Items related to desires that involve actions with others, such as the desire to date, tended to have a lower percentage of positive responses than items related to desires that do not necessarily involve actions with others, such as deep interest in a particular person and romantic excitement.

Keywords: aromantic, asexual, community-based survey, LGBT, romantic orientation


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Our National SOGI Survey Has Been Launched!

The first nationally representative demographic survey that asks about sexual orientation and gender identity in Japan has just been launched by a group of demographers, including myself. This survey will make it possible to estimate the proportion of sexual and gender minorities in Japan and to compare the living conditions and attitudes of sexual and gender minorities with the majority.



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Report Meeting of the 2022 Aro/Ace Survey in Japan



  • 調査回答者の性的指向・性自認のあり方をたずねている大阪市で実施された無作為抽出調査である「大阪市民調査」における(出生時に割り当てられた性別、年齢階級別にみた)アセクシュアル回答者割合:原著論文(英文)日本語訳
  • 「大阪市民調査」を用いた、性的指向アイデンティティ、恋愛的惹かれ、性的惹かれ、性行動など性的指向の複数の指標の相互関連性に関する分析(分析の一部については三宅・平森(2021)のp.216-7で日本語でも言及しています):SocArXiv(英文)
  • さまざまな性的マイノリティに対する意識・態度をたずねている全国無作為抽出調査である「性的マイノリティについての意識:2019年(第2回)全国調査」におけるAro/Ace関連項目(恋愛感情を抱かない男女への嫌悪感は資料53、55ページ目、性愛感情を抱かない友人に対する抵抗感は資料70、74ページ目):スライド資料
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Joining the Faculty of Global and Interdisciplinary Studies at Hosei University as an Assistant Professor

As of April 1, I have been appointed Assistant Professor in the Faculty of Global and Interdisciplinary Studies (GIS) at Hosei University. Although this is a three-year fixed-term position, I am looking forward to engaging in research and educational activities at GIS!


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Presentation at an Event on the Aromantic/Asexual Spectrum in Japan (Waseda University)

On December 4, I was invited as a panel speaker to deliver a presentation titled, “Introduction to the Aromantic/Asexual Spectrum: From a Demographic Perspective” at “A World Where Everything Definitely Becomes Love vs. the Me Who Definitely Doesn’t Fall in Love: Aromantic/Asexual,” an event hosted by the Gender and Sexuality Center at Waseda University. See here for more details about the event (in Japanese). The slides that I used in my presentation (in Japanese) are available here.


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