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Hirotaka Imada

@hirotakaimada.bsky.social
446 followers 493 following 58 posts

Social Psychologist (PhD). Assoc Prof @rhulpsychology.bsky.social. Interests: Intergroup relations/cooperation/reputation. Love music. Made in Japan. Views my own. More about me: himada2018.github.io/ciplab

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Hirotaka Imada @hirotakaimada.bsky.social · 09/07/2026
New paper out with @kodai-kusano.bsky.social in the British Journal of Social Psychology🚨 Dominance meets competence: A socio-ecological perspective on leadership and human social hierarchies bpspsychub.onlinelibrary.wiley.com/doi/10.1111/...
bpspsychub.onlinelibrary.wiley.com
<em>British Journal of Social Psychology</em> | Wiley Online Library
Dominance has been evolutionarily salient in shaping power relations across species, and recent social-psychological work has revived the concept in the study of human social hierarchies. Yet previou...
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Jess Calarco @jessicacalarco.com · 08/06/2026
NEW from me in @pnas.org on the risks of data sharing with qualitative research: "Today, confidentiality risks are amplified by social media, surveillance, and AI tools, which make ample data about people publicly available, thus making deidentification less effective" www.pnas.org/doi/10.1073/...
Article in the Proceedings of the National Academy of Sciences: "With qualitative research, the risks of data sharing can outweigh the rewards." June 5, 2026.
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Qinyu Xiao @qinyuxiao.bsky.social · 31/05/2026
New working paper with @robertboehm.bsky.social: it is an early version likely needing significant revision, so feedback is very much appreciated. We review multi-level games: a family of economic games that capture tensions within and between groups simultaneously. (1/5) doi.org/10.31234/osf...
doi.org
OSF
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Royal Holloway Psychology @rhulpsychology.bsky.social · 08/05/2026
Excited to announce the 2nd Graduate Summer School on Computational Decision Sciences (GSS-CDS) at RHUL! 📅 Sept 7–11, 2026 📍Stewart House, Central London Fee: £480 (includes lunch, breaks & events) Registration closes on June 15. center-decision-sciences.com/cds-graduate...
center-decision-sciences.com
CDS Graduate Summer School 2026
Program Registration Schedule Directions Home 7th – 11th September, 2026 The Center for Decision Sciences will host a Graduate Summer School during the second week of September, 2026 in Senat…
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Hirotaka Imada @hirotakaimada.bsky.social · 31/03/2026
New paper in press in EHS We looked at how group membership shapes social norms (reputation assignments in IR). 💡Second-order information influenced the reputation of cooperators (not defectors) more within the group boundary than across it www.cambridge.org/core/journal...
cambridge.org
Social norms and group-bounded indirect reciprocity | Evolutionary Human Sciences | Cambridge Core
Social norms and group-bounded indirect reciprocity
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Research & Politics @respol.bsky.social · 01/03/2026
@makitotakei.bsky.social, Chanki Moon & @hirotakaimada.bsky.social test if target publics see audience costs. US survey (N=1,404): people infer domestic punishment for backing down; credibility is similar for democracies and autocracies. Read more here: journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Audience costs in the eyes of an adversary - Makito Takei, Chanki Moon, Hirotaka Imada, 2026
Audience cost theory suggests that as a country increases its audience costs, it can send a credible threat to an opponent and prevail in an international crisi...
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Hirotaka Imada @hirotakaimada.bsky.social · 02/03/2026
New paper led by @makitotakei.bsky.social! We found experimental evidence for one of the key theoretical tenets of audience cost theory - those in the challenged country understand that the challenger’s leader would face a punishment for backing down.
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Hirotaka Imada @hirotakaimada.bsky.social · 19/02/2026
10 days left to apply for the 4-y PhD studentship on ennvironmental behaviours and intergroup relations! Full details in the original post below. Feel free to reach out if you have any questions!
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Mark Rubin @markrubin.bsky.social · 01/02/2026
Psych Jobs Postdoctoral Position in Social Psychology at the University of Bonn (3 years) Research in moral psychology and related area
psychologie.uni-bonn.de
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Hirotaka Imada @hirotakaimada.bsky.social · 19/01/2026
I am also hiring a PhD student (4-years, home student only to join the project, starting in September 2026🌏 Please share it widely! www.royalholloway.ac.uk/studying-her...
royalholloway.ac.uk
Other studentships
Other studentships
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Hirotaka Imada @hirotakaimada.bsky.social · 19/01/2026
I am also hiring a PhD student (4-years, home student only to join the project, starting in September 2026🌏 Please share it widely! www.royalholloway.ac.uk/studying-her...
royalholloway.ac.uk
Other studentships
Other studentships
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Hirotaka Imada @hirotakaimada.bsky.social · 09/01/2026
I am hiring a 4y postdoc for my Leverhulme-funded project on the role of beliefs about what in/outgroup members believe/do about climate change in shaping pro-climate behaviours🌏 Start date: May 2026 at latest Deadline: Feb 8 Please share it widely! jobs.royalholloway.ac.uk/vacancy.aspx...
jobs.royalholloway.ac.uk
Job Opportunity at Royal Holloway University of London: Postdoctoral Research Assistant
Full-Time, Fixed-Term (48 months)Applications are invited for a 4-year, full-time Postdoctoral Research Assistant position in the Department of Psychology at Royal Holloway, University of London. The successful candidate will join Dr. Hirotaka...
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Hirotaka Imada @hirotakaimada.bsky.social · 19/12/2025
Abstract submission deadline is now Jan 12! Apply and meet fellow scholars working on social identity in Canterbury:) socialidentitymeeting.org/call-for-pap...
socialidentitymeeting.org
Call for Papers — BiAnnual Social Identity Meeting
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Hirotaka Imada @hirotakaimada.bsky.social · 16/12/2025
In January, I will be recruiting a PhD student (4y/domestic tuition) and a postdoc (4y) to work on a 5y project about the role of beliefs about what in/outgroups value/do/believe in shaping one's climate action. Please keep an eye out for the job advert if you are interested🙏🔥
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Luke Kendrick @lukekendrick.bsky.social · 07/11/2025
FOUR teaching roles available at @rhulpsychology.bsky.social Interested in joining a large teaching focused group, in a wonderfully supportive, dual excellence department? Check out the job adverts below: jobs.royalholloway.ac.uk/Vacancy.aspx... jobs.royalholloway.ac.uk/Vacancy.aspx...
jobs.royalholloway.ac.uk
Job Opportunity at Royal Holloway University of London: Postdoctoral Teaching Associate
Full-Time, Permanent/Fixed-Term - One permanent appointment and one 12-month appointmentApplications are invited for a Post-Doctoral Teaching Associate post in the Department of Psychology, Royal Holl...
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Hirotaka Imada @hirotakaimada.bsky.social · 07/11/2025
🚨Save the date and please help us spread the word! We are hosting the 2nd Bi-Annual Social Identity Meeting! Abstract deadline: Dec 20, 2025 Decision: early 2026 Conference: July 7-8, 2026 Location: Canterbury Cathedral Lodge More info: socialidentitymeeting.org
socialidentitymeeting.org
BiAnnual Social Identity Meeting
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Royal Holloway Psychology @rhulpsychology.bsky.social · 03/11/2025
🚨We are looking for a scholar to join us as a lecturer (teaching & research contract, full-time, permanent), starting 1 April 2026! The application deadline is 1 December 2025. jobs.royalholloway.ac.uk/Vacancy.aspx...
jobs.royalholloway.ac.uk
Job Opportunity at Royal Holloway University of London: Lecturer in Psychology (Research & Teaching)
Full-time, PermanentApplications are invited for a post of Lecturer in the Department of Psychology, Royal Holloway, University of London, starting 1 April 2026. The post is open to ambitious, researc...
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Catherine Molho @cmolho.bsky.social · 15/10/2025
🚨New paper led by Lei Fan, with Florian van Leeuwen, @hirotakaimada.bsky.social, and @joshtybur.bsky.social, out in Cognition & Emotion: 🔗 doi.org/10.1080/0269... In two preregistered studies from Japan 🇯🇵 , we find that anger relates to confrontation while disgust to gossip and social exclusion.
doi.org
Linking anger and disgust to motives and anticipations of aggression in the East: testing a socio-functional account of moral emotions in Japan
Anger and disgust often underlie responses to social transgressions, yet their links to aggressive punishments have been primarily studied in Western populations. Across two studies sampling from J...
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Royal Holloway Psychology @rhulpsychology.bsky.social · 25/09/2025
Can people be led to defend the opposite of their religious beliefs? A new study by Prof. Ryan McKay and colleagues shows they can, shifting later attitudes too. The paradigm holds real promise for illuminating big questions in the field. Open access: doi.org/10.1080/2153...
doi.org
“I once was blind”: experimental manipulation of religious attitudes via choice blindness
Given ongoing debates about the nature and consequences of religious belief, effective procedures for experimentally controlling such beliefs are highly desirable. To date, however, there are few r...
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Sandra Geiger @sandrajgeiger.bsky.social · 07/09/2025
@hirotakaimada.bsky.social, Carya Maharja, Nattavudh Powdthavee, Valeria Vitale, @lei-zhang.bsky.social, Claudio Rosa, Zenith Delabrida, @kristiansn89.bsky.social, @franzessl1.bsky.social, Mathew White, @envpsyvienna.bsky.social, @acee.princeton.edu www.sciencedirect.com/science/arti...
sciencedirect.com
Understanding the role of pluralistic ignorance in biodiversity conservation: A research agenda
Most people believe that biodiversity loss is human-caused, yet they may not realize how many others share this belief. Such collective misperceptions…
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Sandra Geiger @sandrajgeiger.bsky.social · 07/09/2025
🌏 𝗪𝗵𝗮𝘁 𝗺𝗼𝘀𝘁 𝗼𝗳 𝘂𝘀 𝗴𝗲𝘁 𝘄𝗿𝗼𝗻𝗴 𝗮𝗯𝗼𝘂𝘁 𝗻𝗮𝘁𝘂𝗿𝗲 𝗰𝗼𝗻𝘀𝗲𝗿𝘃𝗮𝘁𝗶𝗼𝗻 It’s not that people doubt biodiversity is declining—it’s that we underestimate how many others already share this concern. In our new Perspective, we review work on pluralistic ignorance and set out a research agenda to:
sciencedirect.com
Understanding the role of pluralistic ignorance in biodiversity conservation: A research agenda
Most people believe that biodiversity loss is human-caused, yet they may not realize how many others share this belief. Such collective misperceptions…
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Hirotaka Imada @hirotakaimada.bsky.social · 06/08/2025
New paper out🌍 Following PRISMA2020, we conducted a systematic literature search and identified/discussed four psychological intervention approaches to engine idling: individual training, offering feedback, community-based interventions, and psychological messaging🚗 doi.org/10.1016/j.je...
doi.org
Redirecting
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Hirotaka Imada @hirotakaimada.bsky.social · 10/06/2025
New paper out in Political Psychology (@ispp-pops.bsky.social)🚨 We explored the race x politics crossed-categorisation effect on cooperation - the effect depends on participants' race and politics. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Effects of race and political identity on interpersonal cooperation: A secondary analysis and replication
The highly polarized nature of American politics today has been attributed, in part, to the power of partisanship as a social identity and the increasing alignment of party affiliation, political ide...
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Communications Psychology @commspsychol.nature.com · 10/06/2025
Two experimental studies using the intergenerational sustainable dilemma game found that people made more sustainable choices when future beneficiaries were ingroup members, and less when they were outgroup members. @hirotakaimada.bsky.social www.nature.com/articles/s44...
nature.com
Ingroup favoritism and outgroup derogation in intergenerational cooperation - Communications Psychology
Two experimental studies using the intergenerational sustainable dilemma game found that people made more sustainable choices when future beneficiaries were ingroup members, and less when they were ou...
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Hirotaka Imada @hirotakaimada.bsky.social · 07/06/2025
I had an amazing time in Vienna☀️ Thank you Qinyu (@qinyuxiao.bsky.social) very much for hosting me!
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Qinyu Xiao @qinyuxiao.bsky.social · 06/06/2025
It was great to host Hiro @hirotakaimada.bsky.social for a few days in Vienna to discuss research on in-group favouritism, indirect reciprocity, and intergenerational cooperation!
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Hirotaka Imada @hirotakaimada.bsky.social · 06/06/2025
New paper in @commspsychol.nature.com 🚨 We found future ingroup favoritism and outgroup derogation in both minimal and national group contexts: people made more and less sustainable choices when future beneficiaries were ingroup and outgroup members, respectively. www.nature.com/articles/s44...
nature.com
Ingroup favoritism and outgroup derogation in intergenerational cooperation - Communications Psychology
Two experimental studies using the intergenerational sustainable dilemma game found that people made more sustainable choices when future beneficiaries were ingroup members, and less when they were ou...
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Hirotaka Imada @hirotakaimada.bsky.social · 04/06/2025
Off to Vienna✈️🇦🇹
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Hirotaka Imada @hirotakaimada.bsky.social · 03/06/2025
Runnymede Jazz Orchestra will throw a summer gig at St John’s church in Egham on June 24!🎺🎷🎶☀️😎 www.ticketsource.co.uk/runnymede-ja...
ticketsource.co.uk
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Hirotaka Imada @hirotakaimada.bsky.social · 31/05/2025
I had the chance to be interviewed by a journalist recently and I asked how they found and approached me. One of the things they said was “I also like jazz”🤣🎺
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Hirotaka Imada @hirotakaimada.bsky.social · 30/05/2025
New paper: Online social identity mapping (oSIM) is now available in Japanese😎 onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Online Social Identity Mapping (oSIM) in Japan
The social identity approach to health in social psychology (the so-called “social cure”) explores the capacity for group memberships that furnish people with a positive sense of social identity to e...
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Hirotaka Imada @hirotakaimada.bsky.social · 29/05/2025
New paper orchestrated by @giotravaglino.bsky.social Using data from 8 countries (🇬🇧🇺🇸🇮🇹🇰🇷🇯🇵🇩🇪🇨🇱🇨🇴), we found that the relationship between institutional confidence and civic honesty is moderated by power distance. onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
When Confidence in Institutions Backfires: Power‐Distance Orientation Moderates the Relationship Between Institutional Trust and Civic Honesty Across Eight Countries
Confidence in institutions is a key predictor of civic honesty, yet evidence shows that this relationship varies across contexts and individuals. This study examined whether power-distance orientatio....
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Hirotaka Imada @hirotakaimada.bsky.social · 29/05/2025
New work led and orchestrated by @sandrajgeiger.bsky.social🌍 We replicated pluralistic ignorance in climate beliefs in 11 underrepresented countries. Public-consensus intervention? Not really effective. We also looked at cultural differences using secondary data. journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Hirotaka Imada @hirotakaimada.bsky.social · 23/05/2025
Had a great time visiting London Interdisciplinary School. I’m very excited for potential future collaborations🧠💡
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Julia M. Rohrer @dingdingpeng.the100.ci · 11/05/2025
Thanks to everybody who chimed in! I arrived at the conclusion that (1) there's a lot of interesting stuff about interactions and (2) the figure I was looking for does not exist. So, I made it myself! Here's a simple illustration of how to control for confounding in interactions:>
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Hirotaka Imada @hirotakaimada.bsky.social · 30/04/2025
New replication & extension paper out in RSOS via @pci-regreports.bsky.social with @giladfeldman.bsky.social t.co/0I0UlW1XzP
t.co
https://royalsocietypublishing.org/doi/10.1098/rsos.250441
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Hirotaka Imada @hirotakaimada.bsky.social · 30/04/2025
Happy International Jazz Day🎺🎶
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Hirotaka Imada @hirotakaimada.bsky.social · 20/04/2025
I had a great time in 🇵🇱 Thank you very much again, the Centre of Excellence in the Social Sciences at U of Warsaw for inviting me to give a talk and lead a workshop🙏 Looking forward to staying in touch and exploring future collaborations 📝
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Jamie Moffatt @jamoffatt.bsky.social · 15/04/2025
Really pleased that this paper from my PhD has been published in Nature Scientific Reports! www.nature.com/articles/s41... We used mixed reality to explore how manipulating multisensory integration leads to dis-ownership from the body and how those experiences relate to trait dissociation
nature.com
Trait dissociation is associated with dissociative experiences arising from disrupted multisensory integration - Scientific Reports
Scientific Reports - Trait dissociation is associated with dissociative experiences arising from disrupted multisensory integration
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POB V | IDUB UW @pobvuw.bsky.social · 10/04/2025
Join us at #CESS #ISESS on Apr 16 for @hirotakaimada.bsky.social's (University of London) talk: Intergroup Cooperation and Aggression. On Apr 17, he’ll lead a workshop: Introduction to Economic Games and oTree. Register by Apr 13 to attend the workshop🔽 cess.idub.uw.edu.pl/en/2025/04/w...
cess.idub.uw.edu.pl
Workshops and Seminar Led by Hiro Imada from the University of London - Centre of Excellence in Social Sciences
The Centre of Excellence in the Social Sciences invites you to a workshop and seminar led by Hiro Imada from the University of London. The Interdisciplinary Seminar in Empirical Social Science (ISESS)...
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Hirotaka Imada @hirotakaimada.bsky.social · 09/04/2025
A paper led by my former final-year student has just been published 📊 🧾 With a lot of hard work, the lead author, Brodie, has succesfully turned their final year project thesis into a peer-reviewed publication! www.tandfonline.com/doi/full/10....
tandfonline.com
The evaluation of negative gossipers: testing the role of group membership and social anxiety
While negative gossip serves important functions for groups, previous studies have revealed that individuals negatively evaluate negative gossipers. Given the ubiquity of gossip, there should be co...
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John Drury @profjohndrury.bsky.social · 08/04/2025
Independent Research Fellow @sussex.ac.uk School of Psychology Please share www.jobs.ac.uk/job/DMN512/i...
jobs.ac.uk
Independent Research Fellow at University of Sussex
An academic position as a Independent Research Fellow is being advertised on jobs.ac.uk. Click now to find more details and explore additional academic job opportunities.
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Hirotaka Imada @hirotakaimada.bsky.social · 08/04/2025
New paper out in Judgment and Decision Making💡 Leveraging data from Israeli professional volleyball players, we revisited some theoretically interesting hypotheses regarding intra- and intergroup cooperation 👇 www.cambridge.org/core/journal...
cambridge.org
Ingroup favoritism in cooperation in a dynamic intergroup context: Data from Israeli professional volleyball players | Judgment and Decision Making | Cambridge Core
Ingroup favoritism in cooperation in a dynamic intergroup context: Data from Israeli professional volleyball players - Volume 20
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Royal Holloway @royalholloway.bsky.social · 01/04/2025
Interesting findings on our intuitive preferences for religious belief 🧠 Research by academics at Brunel University, @rhulpsychology.bsky.social, and other institutions, finds evidence of pro-religious intuitions even in societies that have become largely secular. Read more: ow.ly/Lizv50Vqmg5
Cloudy sky with bright light shining down
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Royal Holloway Psychology @rhulpsychology.bsky.social · 01/04/2025
Calling all education professionals! Register now for our research and practice event - bringing together researchers and practitioners working to improve outcomes for children and young people! 27 June '25 - find out more & sign up now: www.royalholloway.ac.uk/research-and...
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Hirotaka Imada @hirotakaimada.bsky.social · 01/04/2025
A manuscript led by my Y3 student has now been accepted in a peer-reviewed journal. They went beyond the curriculum, learning R, RMarkdown, and OSF, and beautifully applied these open science skills to publish their Y3 thesis. So proud and happy🌞 @rhulpsychology.bsky.social
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Royal Holloway Psychology @rhulpsychology.bsky.social · 31/03/2025
New work shows atheists in some of the world’s most secular countries show an intuitive preference for religious belief over atheism www.pnas.org/doi/10.1073/...
pnas.org
Belief in belief: Even atheists in secular countries show intuitive preferences favoring religious belief | PNAS
We find evidence of belief in belief&mdash;intuitive preferences for religious belief over atheism, even among atheist participants&mdash;across eight comparat...
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Hirotaka Imada @hirotakaimada.bsky.social · 24/03/2025
Ross and Pisor (2025). Perceived inequality and variability in the expression of parochial altruism www.cambridge.org/core/journal...
cambridge.org
Perceived inequality and variability in the expression of parochial altruism | Evolutionary Human Sciences | Cambridge Core
Perceived inequality and variability in the expression of parochial altruism - Volume 7
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Olaf Borghi @olafborghi.com · 19/03/2025
In politics, people are not always truth seekers. Often, we reach conclusions because they fit with preferred political narratives: we are biased by ideological motivations. But are some people better equipped to overcome such bias than others? 🚨 Find out in the first pre-print from my PhD 🚨
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Hirotaka Imada @hirotakaimada.bsky.social · 17/03/2025
We’ll bring live modern jazz to the Packhorse again this Friday (21-22:30) 🎺🎷 Join us and celebrate Friday night🍻 We’ll be playing jazz classics from Cole Porter to Carlos Jobim:)
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