EHBEA 2026
@ehbea2026.bsky.social
Feed of the 2026 European Human Behaviour and Evolution Association Conference - Leiden. April 15-17, 2026.
Stay tuned for updates!
Stay tuned for updates!
Leiden looking good today ;-)
📢 Abstract submission will be open Nov 1st – Dec 15th for EHBEA 2026
⚡Present your research, connect & collaborate 14-17 April
📝 300 words (extendable to 800 after acceptance)
For more information & our full call for abstracts, check www.ehbea2026.com
📢 Abstract submission will be open Nov 1st – Dec 15th for EHBEA 2026
⚡Present your research, connect & collaborate 14-17 April
📝 300 words (extendable to 800 after acceptance)
For more information & our full call for abstracts, check www.ehbea2026.com
October 28, 2025 at 3:17 PM
Leiden looking good today ;-)
📢 Abstract submission will be open Nov 1st – Dec 15th for EHBEA 2026
⚡Present your research, connect & collaborate 14-17 April
📝 300 words (extendable to 800 after acceptance)
For more information & our full call for abstracts, check www.ehbea2026.com
📢 Abstract submission will be open Nov 1st – Dec 15th for EHBEA 2026
⚡Present your research, connect & collaborate 14-17 April
📝 300 words (extendable to 800 after acceptance)
For more information & our full call for abstracts, check www.ehbea2026.com
2/ Shout out to the extraordinary organizing team for #EHBEA2025 ✒️🐧📝
@tvpollet.bsky.social
@jeannebovet.bsky.social
@francescadp.bsky.social
@amrotella.bsky.social
@gillianpepper.bsky.social
@mdconstable.bsky.social
@lrrenner.bsky.social
Martin Tovee
Connor Leslie
Tamsin Saxton
& Kris McCarty
@tvpollet.bsky.social
@jeannebovet.bsky.social
@francescadp.bsky.social
@amrotella.bsky.social
@gillianpepper.bsky.social
@mdconstable.bsky.social
@lrrenner.bsky.social
Martin Tovee
Connor Leslie
Tamsin Saxton
& Kris McCarty
April 24, 2025 at 2:17 PM
2/ Shout out to the extraordinary organizing team for #EHBEA2025 ✒️🐧📝
@tvpollet.bsky.social
@jeannebovet.bsky.social
@francescadp.bsky.social
@amrotella.bsky.social
@gillianpepper.bsky.social
@mdconstable.bsky.social
@lrrenner.bsky.social
Martin Tovee
Connor Leslie
Tamsin Saxton
& Kris McCarty
@tvpollet.bsky.social
@jeannebovet.bsky.social
@francescadp.bsky.social
@amrotella.bsky.social
@gillianpepper.bsky.social
@mdconstable.bsky.social
@lrrenner.bsky.social
Martin Tovee
Connor Leslie
Tamsin Saxton
& Kris McCarty
When is IPV deemed acceptable in south-Central Ethiopia??
➡️ Sarah Myers presents acceptance data:
- women > men
- older > younger
- religious leaders > other professions
- wealthy > poorer
➡️ are these transmitted?
- yes, within & beyond households
#ehbea2025 #ipv
@drsarahmyers.bsky.social
➡️ Sarah Myers presents acceptance data:
- women > men
- older > younger
- religious leaders > other professions
- wealthy > poorer
➡️ are these transmitted?
- yes, within & beyond households
#ehbea2025 #ipv
@drsarahmyers.bsky.social
April 17, 2025 at 3:15 PM
When is IPV deemed acceptable in south-Central Ethiopia??
➡️ Sarah Myers presents acceptance data:
- women > men
- older > younger
- religious leaders > other professions
- wealthy > poorer
➡️ are these transmitted?
- yes, within & beyond households
#ehbea2025 #ipv
@drsarahmyers.bsky.social
➡️ Sarah Myers presents acceptance data:
- women > men
- older > younger
- religious leaders > other professions
- wealthy > poorer
➡️ are these transmitted?
- yes, within & beyond households
#ehbea2025 #ipv
@drsarahmyers.bsky.social
Are there sex/gender differences in children's play across cultures?? 🌎
➡️ Sunday Ukam present meta-analysis results with a HUGE effect size: gender differences in play d=2.7
➡️ these differences are remarkably consistent across cultures & time
#ehbea2025
➡️ Sunday Ukam present meta-analysis results with a HUGE effect size: gender differences in play d=2.7
➡️ these differences are remarkably consistent across cultures & time
#ehbea2025
April 17, 2025 at 2:52 PM
Are there sex/gender differences in children's play across cultures?? 🌎
➡️ Sunday Ukam present meta-analysis results with a HUGE effect size: gender differences in play d=2.7
➡️ these differences are remarkably consistent across cultures & time
#ehbea2025
➡️ Sunday Ukam present meta-analysis results with a HUGE effect size: gender differences in play d=2.7
➡️ these differences are remarkably consistent across cultures & time
#ehbea2025
How does economy & male absence patterns impact marriage in Vanuatu?? 🇻🇺
➡️ there's within-society variation in residence systems 🏘
➡️ neither male absence nor market integration predict matrilocality
#ehbea2025 #marriage #MarketIntegration #change
➡️ there's within-society variation in residence systems 🏘
➡️ neither male absence nor market integration predict matrilocality
#ehbea2025 #marriage #MarketIntegration #change
April 17, 2025 at 2:04 PM
How does economy & male absence patterns impact marriage in Vanuatu?? 🇻🇺
➡️ there's within-society variation in residence systems 🏘
➡️ neither male absence nor market integration predict matrilocality
#ehbea2025 #marriage #MarketIntegration #change
➡️ there's within-society variation in residence systems 🏘
➡️ neither male absence nor market integration predict matrilocality
#ehbea2025 #marriage #MarketIntegration #change
What drives the evolution of #monogamous marriage?? 💒
➡️ there's considerable cultural variation in marriage practices, monogamy remains a puzzle 🧩
➡️ Gabriel Saffa models alternative hyotheses, ⬆️ support for rival wealth hypothesis, ⬇️ Intergroup competiton
#ehbea2025 #marriage #monogamy #ecology
➡️ there's considerable cultural variation in marriage practices, monogamy remains a puzzle 🧩
➡️ Gabriel Saffa models alternative hyotheses, ⬆️ support for rival wealth hypothesis, ⬇️ Intergroup competiton
#ehbea2025 #marriage #monogamy #ecology
April 17, 2025 at 1:49 PM
What drives the evolution of #monogamous marriage?? 💒
➡️ there's considerable cultural variation in marriage practices, monogamy remains a puzzle 🧩
➡️ Gabriel Saffa models alternative hyotheses, ⬆️ support for rival wealth hypothesis, ⬇️ Intergroup competiton
#ehbea2025 #marriage #monogamy #ecology
➡️ there's considerable cultural variation in marriage practices, monogamy remains a puzzle 🧩
➡️ Gabriel Saffa models alternative hyotheses, ⬆️ support for rival wealth hypothesis, ⬇️ Intergroup competiton
#ehbea2025 #marriage #monogamy #ecology
Now, onto marriage practices! 💍
Ruth Mace: Why does bride-kidnapping persists in Kyrgyzstan? 👰♀
➡️ there's consensual & nonconsensual bride-kidnapping (men report more as consented, women as nonconsent) 👨 👩
➡️ in decline 📉
➡️ transmits in families - parents & older brothers
#ehbea2025 #marriage
Ruth Mace: Why does bride-kidnapping persists in Kyrgyzstan? 👰♀
➡️ there's consensual & nonconsensual bride-kidnapping (men report more as consented, women as nonconsent) 👨 👩
➡️ in decline 📉
➡️ transmits in families - parents & older brothers
#ehbea2025 #marriage
April 17, 2025 at 1:27 PM
Now, onto marriage practices! 💍
Ruth Mace: Why does bride-kidnapping persists in Kyrgyzstan? 👰♀
➡️ there's consensual & nonconsensual bride-kidnapping (men report more as consented, women as nonconsent) 👨 👩
➡️ in decline 📉
➡️ transmits in families - parents & older brothers
#ehbea2025 #marriage
Ruth Mace: Why does bride-kidnapping persists in Kyrgyzstan? 👰♀
➡️ there's consensual & nonconsensual bride-kidnapping (men report more as consented, women as nonconsent) 👨 👩
➡️ in decline 📉
➡️ transmits in families - parents & older brothers
#ehbea2025 #marriage
Rounding out the session, we have a great talk by Saein Lee talking about #conformity & #prosociality!
➡️ Comparing tight vs loose: Tighter cultures show more prosociality, only for behaviours, not self-report! 🌏
#ehbea2025
#SocialNorms
@saeinlee.bsky.social
➡️ Comparing tight vs loose: Tighter cultures show more prosociality, only for behaviours, not self-report! 🌏
#ehbea2025
#SocialNorms
@saeinlee.bsky.social
April 17, 2025 at 11:00 AM
Rounding out the session, we have a great talk by Saein Lee talking about #conformity & #prosociality!
➡️ Comparing tight vs loose: Tighter cultures show more prosociality, only for behaviours, not self-report! 🌏
#ehbea2025
#SocialNorms
@saeinlee.bsky.social
➡️ Comparing tight vs loose: Tighter cultures show more prosociality, only for behaviours, not self-report! 🌏
#ehbea2025
#SocialNorms
@saeinlee.bsky.social
Then... Gregoire Darcy finds that in tighter cultures, people who are less cooperative also want to #punish noncooperators 🤯🔒
#SocialNorms #Culture
#ehbea2025
#SocialNorms #Culture
#ehbea2025
April 17, 2025 at 10:52 AM
Then... Gregoire Darcy finds that in tighter cultures, people who are less cooperative also want to #punish noncooperators 🤯🔒
#SocialNorms #Culture
#ehbea2025
#SocialNorms #Culture
#ehbea2025
Michal Stefanczyk looks at moral judgements in front of attractive women! ⚖️
➡️ finds more likely to pull lever in trolley dilemma in front of attractive women 👩
➡️ but this is because they are less #delontological - less normative!
#ehbea2025
➡️ finds more likely to pull lever in trolley dilemma in front of attractive women 👩
➡️ but this is because they are less #delontological - less normative!
#ehbea2025
April 17, 2025 at 10:47 AM
Michal Stefanczyk looks at moral judgements in front of attractive women! ⚖️
➡️ finds more likely to pull lever in trolley dilemma in front of attractive women 👩
➡️ but this is because they are less #delontological - less normative!
#ehbea2025
➡️ finds more likely to pull lever in trolley dilemma in front of attractive women 👩
➡️ but this is because they are less #delontological - less normative!
#ehbea2025
April 17, 2025 at 10:28 AM
Gillian Pepper looks at #risk in high/low volcano risk areas in Sicily! 🌋
➡️ people weren't more like to help in or out group members 🇮🇹
➡️ but! Less likely to wear seat belts in high risk areas! 🚗
@gillianpepper.bsky.social
#ehbea2025
#volcano
➡️ people weren't more like to help in or out group members 🇮🇹
➡️ but! Less likely to wear seat belts in high risk areas! 🚗
@gillianpepper.bsky.social
#ehbea2025
#volcano
April 17, 2025 at 10:21 AM
Gillian Pepper looks at #risk in high/low volcano risk areas in Sicily! 🌋
➡️ people weren't more like to help in or out group members 🇮🇹
➡️ but! Less likely to wear seat belts in high risk areas! 🚗
@gillianpepper.bsky.social
#ehbea2025
#volcano
➡️ people weren't more like to help in or out group members 🇮🇹
➡️ but! Less likely to wear seat belts in high risk areas! 🚗
@gillianpepper.bsky.social
#ehbea2025
#volcano
How to align individual & group interests?? 🤔
➡️ Gilbert Roberts models how honest signaling of cooperative intent can do this in a public goods game!
➡️ signallers are chosen as partners
#cooperation #pgg #ehbea2025
@gilbertroberts.bsky.social
➡️ Gilbert Roberts models how honest signaling of cooperative intent can do this in a public goods game!
➡️ signallers are chosen as partners
#cooperation #pgg #ehbea2025
@gilbertroberts.bsky.social
April 17, 2025 at 10:10 AM
How to align individual & group interests?? 🤔
➡️ Gilbert Roberts models how honest signaling of cooperative intent can do this in a public goods game!
➡️ signallers are chosen as partners
#cooperation #pgg #ehbea2025
@gilbertroberts.bsky.social
➡️ Gilbert Roberts models how honest signaling of cooperative intent can do this in a public goods game!
➡️ signallers are chosen as partners
#cooperation #pgg #ehbea2025
@gilbertroberts.bsky.social
Next up: Emily Jeffries on the co-evolution of #storytelling & #cooperation! 📚
➡️ storytelling is a human universal
➡️ finds that most folktales are prosocial
#ehbea2025 #folktales #punishment
➡️ storytelling is a human universal
➡️ finds that most folktales are prosocial
#ehbea2025 #folktales #punishment
April 17, 2025 at 9:49 AM
Next up: Emily Jeffries on the co-evolution of #storytelling & #cooperation! 📚
➡️ storytelling is a human universal
➡️ finds that most folktales are prosocial
#ehbea2025 #folktales #punishment
➡️ storytelling is a human universal
➡️ finds that most folktales are prosocial
#ehbea2025 #folktales #punishment
Starting off the #cooperation session, Julia Phelps talks about the relationship between #kinship & reciprocity
➡️ Finds that people react better to nonreciprocation from other households, from past reciprocators who are close kin 👨👩👦👦
#ehbea2025
➡️ Finds that people react better to nonreciprocation from other households, from past reciprocators who are close kin 👨👩👦👦
#ehbea2025
April 17, 2025 at 9:37 AM
Starting off the #cooperation session, Julia Phelps talks about the relationship between #kinship & reciprocity
➡️ Finds that people react better to nonreciprocation from other households, from past reciprocators who are close kin 👨👩👦👦
#ehbea2025
➡️ Finds that people react better to nonreciprocation from other households, from past reciprocators who are close kin 👨👩👦👦
#ehbea2025
What an excellent final plenary at #EHBEA2025!! 👩🏫
Prof Christine Caldwell shared research on #CulturalTransmission
🧠 Adults & childre can transmit subsets of info, that perform as well as if they transmitted full info! 🗣
#CulturalEvolution #InformationSharing #EHBEA
@ehbea.bsky.social
Prof Christine Caldwell shared research on #CulturalTransmission
🧠 Adults & childre can transmit subsets of info, that perform as well as if they transmitted full info! 🗣
#CulturalEvolution #InformationSharing #EHBEA
@ehbea.bsky.social
April 17, 2025 at 8:57 AM
What an excellent final plenary at #EHBEA2025!! 👩🏫
Prof Christine Caldwell shared research on #CulturalTransmission
🧠 Adults & childre can transmit subsets of info, that perform as well as if they transmitted full info! 🗣
#CulturalEvolution #InformationSharing #EHBEA
@ehbea.bsky.social
Prof Christine Caldwell shared research on #CulturalTransmission
🧠 Adults & childre can transmit subsets of info, that perform as well as if they transmitted full info! 🗣
#CulturalEvolution #InformationSharing #EHBEA
@ehbea.bsky.social
2/ 🧠 Kicking us off at 09:00 is Christine Caldwell with a plenary on cognitive challenges in human cumulative cultural evolution.
A big brain start to Day 4! #EHBEA2025
#Cognition #CulturalEvolution #CumulativeCulture
A big brain start to Day 4! #EHBEA2025
#Cognition #CulturalEvolution #CumulativeCulture
April 17, 2025 at 8:19 AM
2/ 🧠 Kicking us off at 09:00 is Christine Caldwell with a plenary on cognitive challenges in human cumulative cultural evolution.
A big brain start to Day 4! #EHBEA2025
#Cognition #CulturalEvolution #CumulativeCulture
A big brain start to Day 4! #EHBEA2025
#Cognition #CulturalEvolution #CumulativeCulture
How does the #GenderGap and #GenderParadox impact pro-environmentalism??
Sylvie Borau looks at 63 nations:
➡️ 👩 - stronger climate change & policy support, but 👨 more willing to share publicly
➡️ paradox: higher gender = countries had MORE gender inequality in #environmentalism
#ehbea2025
Sylvie Borau looks at 63 nations:
➡️ 👩 - stronger climate change & policy support, but 👨 more willing to share publicly
➡️ paradox: higher gender = countries had MORE gender inequality in #environmentalism
#ehbea2025
April 16, 2025 at 1:28 PM
How does the #GenderGap and #GenderParadox impact pro-environmentalism??
Sylvie Borau looks at 63 nations:
➡️ 👩 - stronger climate change & policy support, but 👨 more willing to share publicly
➡️ paradox: higher gender = countries had MORE gender inequality in #environmentalism
#ehbea2025
Sylvie Borau looks at 63 nations:
➡️ 👩 - stronger climate change & policy support, but 👨 more willing to share publicly
➡️ paradox: higher gender = countries had MORE gender inequality in #environmentalism
#ehbea2025
Gabriele Belluci looked at hoe expectations, planning, and mentalizing shape ingrown #favoritism!
➡️ processes can be represented computationally as belief distributions! Planning was important.
#ehbea2025
➡️ processes can be represented computationally as belief distributions! Planning was important.
#ehbea2025
April 16, 2025 at 1:20 PM
Gabriele Belluci looked at hoe expectations, planning, and mentalizing shape ingrown #favoritism!
➡️ processes can be represented computationally as belief distributions! Planning was important.
#ehbea2025
➡️ processes can be represented computationally as belief distributions! Planning was important.
#ehbea2025
Now onto - social learning in gendered subject selection!
➡️ Karen Golden finds that men choose more gendered stereotype than women, which biases academic choices! 📚
#academics #genderstereotypes #socialleaning #ehbea2025
➡️ Karen Golden finds that men choose more gendered stereotype than women, which biases academic choices! 📚
#academics #genderstereotypes #socialleaning #ehbea2025
April 16, 2025 at 1:14 PM
Now onto - social learning in gendered subject selection!
➡️ Karen Golden finds that men choose more gendered stereotype than women, which biases academic choices! 📚
#academics #genderstereotypes #socialleaning #ehbea2025
➡️ Karen Golden finds that men choose more gendered stereotype than women, which biases academic choices! 📚
#academics #genderstereotypes #socialleaning #ehbea2025
April 16, 2025 at 1:09 PM
What are common characteristics of #power & #dominance in humans?!? 🧔🤺
➡️ it's different in non-humans 🐒 🐦!
Drew Altschul finds convergence among psyc measures - there is a general assertative factor which is stable!
@dremalt.bsky.social
#ehbea2025 #status
➡️ it's different in non-humans 🐒 🐦!
Drew Altschul finds convergence among psyc measures - there is a general assertative factor which is stable!
@dremalt.bsky.social
#ehbea2025 #status
April 16, 2025 at 12:33 PM
What are common characteristics of #power & #dominance in humans?!? 🧔🤺
➡️ it's different in non-humans 🐒 🐦!
Drew Altschul finds convergence among psyc measures - there is a general assertative factor which is stable!
@dremalt.bsky.social
#ehbea2025 #status
➡️ it's different in non-humans 🐒 🐦!
Drew Altschul finds convergence among psyc measures - there is a general assertative factor which is stable!
@dremalt.bsky.social
#ehbea2025 #status
More interesting talks this afternoon!
Robin Watson combined cultural evolutionary models, experiments and evolutionary models to understand how #prestige leads to #hierarchies!
➡️ concludes that prestige is a plausible mechanism through which hierarchies can emerge
#ehbea2025 #evolution #models
Robin Watson combined cultural evolutionary models, experiments and evolutionary models to understand how #prestige leads to #hierarchies!
➡️ concludes that prestige is a plausible mechanism through which hierarchies can emerge
#ehbea2025 #evolution #models
April 16, 2025 at 12:24 PM
More interesting talks this afternoon!
Robin Watson combined cultural evolutionary models, experiments and evolutionary models to understand how #prestige leads to #hierarchies!
➡️ concludes that prestige is a plausible mechanism through which hierarchies can emerge
#ehbea2025 #evolution #models
Robin Watson combined cultural evolutionary models, experiments and evolutionary models to understand how #prestige leads to #hierarchies!
➡️ concludes that prestige is a plausible mechanism through which hierarchies can emerge
#ehbea2025 #evolution #models
How to predict competence judgements??
Marius Mercier uses #Bayesian models to predict particiapant judgements
➡️ finds that that competence judgments are well described by Bayesian models
➡️ predicts participant answers on new questions & integrate info
@mariusmercier.bsky.social #ehbea2025
Marius Mercier uses #Bayesian models to predict particiapant judgements
➡️ finds that that competence judgments are well described by Bayesian models
➡️ predicts participant answers on new questions & integrate info
@mariusmercier.bsky.social #ehbea2025
April 16, 2025 at 10:54 AM
How to predict competence judgements??
Marius Mercier uses #Bayesian models to predict particiapant judgements
➡️ finds that that competence judgments are well described by Bayesian models
➡️ predicts participant answers on new questions & integrate info
@mariusmercier.bsky.social #ehbea2025
Marius Mercier uses #Bayesian models to predict particiapant judgements
➡️ finds that that competence judgments are well described by Bayesian models
➡️ predicts participant answers on new questions & integrate info
@mariusmercier.bsky.social #ehbea2025
How to reconcile when we get different sequential moral decision effects?!?
@amrotella.bsky.social argues that if you take into account #reputation, #signaling, and #BayesianInference, you can predict when and why you will see #licensing vs #consistency!
#ehbea2025 #moraldecisions
@amrotella.bsky.social argues that if you take into account #reputation, #signaling, and #BayesianInference, you can predict when and why you will see #licensing vs #consistency!
#ehbea2025 #moraldecisions
April 16, 2025 at 10:48 AM
How to reconcile when we get different sequential moral decision effects?!?
@amrotella.bsky.social argues that if you take into account #reputation, #signaling, and #BayesianInference, you can predict when and why you will see #licensing vs #consistency!
#ehbea2025 #moraldecisions
@amrotella.bsky.social argues that if you take into account #reputation, #signaling, and #BayesianInference, you can predict when and why you will see #licensing vs #consistency!
#ehbea2025 #moraldecisions