Diego Guevara Beltran
@psycheddiego.bsky.social
Social psych + evo anthropology: Cooperation, interdependence, emotion. Assistant Professor, Department of Psychology, University of Arizona.
http://psycheddiego.mystrikingly.com/
http://psycheddiego.mystrikingly.com/
Pinned
How do people know whom, and how much, to help? we (@jessicadayers.bsky.social @leecronk.bsky.social Daniel Balliet @jeremykoster.bsky.social & @athenaaktipis.bsky.social) tackle this question among the Mayangna of northern Nicaragua, who rely primarily on horticulture for subsistence 🧵(1/10).
Reposted by Diego Guevara Beltran
Missed the deadline?
This just in!! Preconference submissions will remain OPEN until Monday (10/27) at 8 am ET!!! Don’t let this opportunity pass you by! @ahrako.bsky.social @spspnews.bsky.social #EPatSPSP2026
This just in!! Preconference submissions will remain OPEN until Monday (10/27) at 8 am ET!!! Don’t let this opportunity pass you by! @ahrako.bsky.social @spspnews.bsky.social #EPatSPSP2026
Friends!!!! It’s that time again… Submit abstracts for @spspnews.bsky.social EP preconference: my.spsp.org/Events/Submi...
We are accepting data blitz & poster submissions!
We (@ahrako.bsky.social &me) are so excited to see y’all in Chicago!
Https://ep2026.mystrikingly.com
#EPatSPSP2026 #SPSP2026
We are accepting data blitz & poster submissions!
We (@ahrako.bsky.social &me) are so excited to see y’all in Chicago!
Https://ep2026.mystrikingly.com
#EPatSPSP2026 #SPSP2026
Society for Personality and Social Psychology > Events > Submission Portal
my.spsp.org
October 24, 2025 at 4:27 PM
Missed the deadline?
This just in!! Preconference submissions will remain OPEN until Monday (10/27) at 8 am ET!!! Don’t let this opportunity pass you by! @ahrako.bsky.social @spspnews.bsky.social #EPatSPSP2026
This just in!! Preconference submissions will remain OPEN until Monday (10/27) at 8 am ET!!! Don’t let this opportunity pass you by! @ahrako.bsky.social @spspnews.bsky.social #EPatSPSP2026
Reposted by Diego Guevara Beltran
Do we really keep score in our friendship? See what @athenaaktipis.bsky.social and I have to say about why this isn’t always the case theconversation.com/friendships-...
Friendships aren’t just about keeping score – new psychology research looks at why we help our friends when they need it
Friendship isn’t a tit-for-tat balance sheet, but that’s how researchers have traditionally defined it. New studies are refining the model to be less about transactions and truer to real life.
theconversation.com
October 10, 2025 at 1:55 PM
Do we really keep score in our friendship? See what @athenaaktipis.bsky.social and I have to say about why this isn’t always the case theconversation.com/friendships-...
Reposted by Diego Guevara Beltran
More than a decade of effort went into this magnificent dataset. What an incredible public good. People need to know how hard it is to do rigorous empirical work in political science.
Very happy to be able to share the polling-level dataset on Indian Parliamentary Elections 2009, 2014, 2019 that we have been working on for more than a decade. Both the data and the data descriptor are open access: rdcu.be/eujHH
@statsvitenskap.bsky.social @unioslo-svfak.bsky.social
@statsvitenskap.bsky.social @unioslo-svfak.bsky.social
October 8, 2025 at 12:01 PM
More than a decade of effort went into this magnificent dataset. What an incredible public good. People need to know how hard it is to do rigorous empirical work in political science.
Reposted by Diego Guevara Beltran
If you could win a prize by guessing the number on a die 🎲 hidden under a cup, would you want to guess before the die was rolled, or after?
The odds of winning are the same in both, but they can feel different. 🧵
The odds of winning are the same in both, but they can feel different. 🧵
October 6, 2025 at 9:03 PM
If you could win a prize by guessing the number on a die 🎲 hidden under a cup, would you want to guess before the die was rolled, or after?
The odds of winning are the same in both, but they can feel different. 🧵
The odds of winning are the same in both, but they can feel different. 🧵
Reposted by Diego Guevara Beltran
Happy to see this work published in Psych Review. It's an impressive and important bit of theory/modeling about how we learn about decision-making under risk. Here's a slide with the super-coarse-grained summary of our results. Read the paper for (much) more. osf.io/preprints/so...
September 30, 2025 at 2:39 PM
Happy to see this work published in Psych Review. It's an impressive and important bit of theory/modeling about how we learn about decision-making under risk. Here's a slide with the super-coarse-grained summary of our results. Read the paper for (much) more. osf.io/preprints/so...
Reposted by Diego Guevara Beltran
I'm so jazzed to finally have this paper out with
@tagerai.bsky.social in @pnas.org! It's probably my favorite paper I've worked on so far. What happens when punishment is incentivized? 🧵
t.co/y5DUUGTdT9
@tagerai.bsky.social in @pnas.org! It's probably my favorite paper I've worked on so far. What happens when punishment is incentivized? 🧵
t.co/y5DUUGTdT9
https://www.pnas.org/doi/10.1073/pnas.2508479122
t.co
August 19, 2025 at 6:50 PM
I'm so jazzed to finally have this paper out with
@tagerai.bsky.social in @pnas.org! It's probably my favorite paper I've worked on so far. What happens when punishment is incentivized? 🧵
t.co/y5DUUGTdT9
@tagerai.bsky.social in @pnas.org! It's probably my favorite paper I've worked on so far. What happens when punishment is incentivized? 🧵
t.co/y5DUUGTdT9
Reposted by Diego Guevara Beltran
📣 New registered report in @nathumbehav.nature.com with Ivan Soraperra, @jonathanschulz.bsky.social, and Shaul Shalvi: rdcu.be/eAcMA
With data from 7,978 participants in 20 countries, we find that information about negative externalities promotes prosociality, especially in guilt-prone individuals.
With data from 7,978 participants in 20 countries, we find that information about negative externalities promotes prosociality, especially in guilt-prone individuals.
Guilt drives prosociality across 20 countries
Nature Human Behaviour - This Registered Report of 7,978 people in 20 countries found that guilt and information about consequences drive prosocial behaviour. Guilt-prone individuals gave more when...
rdcu.be
August 18, 2025 at 10:43 AM
📣 New registered report in @nathumbehav.nature.com with Ivan Soraperra, @jonathanschulz.bsky.social, and Shaul Shalvi: rdcu.be/eAcMA
With data from 7,978 participants in 20 countries, we find that information about negative externalities promotes prosociality, especially in guilt-prone individuals.
With data from 7,978 participants in 20 countries, we find that information about negative externalities promotes prosociality, especially in guilt-prone individuals.
Reposted by Diego Guevara Beltran
In a study of naturally occurring ostracism experiences: After experiencing ostracism, people initially prioritize withdrawal and prosocial coping responses. Prosocial responses increase overtime. Anti-social responses were relatively rare
journals.sagepub.com/doi/pdf/10.1...
journals.sagepub.com/doi/pdf/10.1...
August 18, 2025 at 1:25 PM
In a study of naturally occurring ostracism experiences: After experiencing ostracism, people initially prioritize withdrawal and prosocial coping responses. Prosocial responses increase overtime. Anti-social responses were relatively rare
journals.sagepub.com/doi/pdf/10.1...
journals.sagepub.com/doi/pdf/10.1...
Reposted by Diego Guevara Beltran
🚨Very happy that my PhD work is now out in @nature.com!
We discovered that evolution, by acting in the midbrain, shifted the threshold to escape in Peromyscus mice, to fine-tune defensive strategies in different environments
www.nature.com/articles/s41...
This was a truly collaborative effort! 🧵⬇️
We discovered that evolution, by acting in the midbrain, shifted the threshold to escape in Peromyscus mice, to fine-tune defensive strategies in different environments
www.nature.com/articles/s41...
This was a truly collaborative effort! 🧵⬇️
July 23, 2025 at 3:06 PM
🚨Very happy that my PhD work is now out in @nature.com!
We discovered that evolution, by acting in the midbrain, shifted the threshold to escape in Peromyscus mice, to fine-tune defensive strategies in different environments
www.nature.com/articles/s41...
This was a truly collaborative effort! 🧵⬇️
We discovered that evolution, by acting in the midbrain, shifted the threshold to escape in Peromyscus mice, to fine-tune defensive strategies in different environments
www.nature.com/articles/s41...
This was a truly collaborative effort! 🧵⬇️
Reposted by Diego Guevara Beltran
Some fun unpublished data from a talk I gave years ago on the sexual division of labor (SDOL) among the Batek of Malaysia.
The Batek have been described as highly gender-egalitarian.
Kirk and Karen Endicott collected the data in 1975-76, back when the Batek were fully nomadic foragers.
The Batek have been described as highly gender-egalitarian.
Kirk and Karen Endicott collected the data in 1975-76, back when the Batek were fully nomadic foragers.
July 27, 2025 at 7:01 PM
Some fun unpublished data from a talk I gave years ago on the sexual division of labor (SDOL) among the Batek of Malaysia.
The Batek have been described as highly gender-egalitarian.
Kirk and Karen Endicott collected the data in 1975-76, back when the Batek were fully nomadic foragers.
The Batek have been described as highly gender-egalitarian.
Kirk and Karen Endicott collected the data in 1975-76, back when the Batek were fully nomadic foragers.
How do people know whom, and how much, to help? we (@jessicadayers.bsky.social @leecronk.bsky.social Daniel Balliet @jeremykoster.bsky.social & @athenaaktipis.bsky.social) tackle this question among the Mayangna of northern Nicaragua, who rely primarily on horticulture for subsistence 🧵(1/10).
July 15, 2025 at 4:42 PM
How do people know whom, and how much, to help? we (@jessicadayers.bsky.social @leecronk.bsky.social Daniel Balliet @jeremykoster.bsky.social & @athenaaktipis.bsky.social) tackle this question among the Mayangna of northern Nicaragua, who rely primarily on horticulture for subsistence 🧵(1/10).
Reposted by Diego Guevara Beltran
New Evidence Suggests Humans May Have Been Dipping Crunchy Things Into Gooey Things Earlier Than Previously Thought theonion.com/new-evi...
July 12, 2025 at 7:00 PM
New Evidence Suggests Humans May Have Been Dipping Crunchy Things Into Gooey Things Earlier Than Previously Thought theonion.com/new-evi...
Reposted by Diego Guevara Beltran
🧵
Very excited (w/ @omarjcamanto.bsky.social) to share our preprint tutorial for using our R 📦 dySEM for #dyadic data analysis with latent variables, in cross-sectional data sets.
This paper has been literal years in the making, and provides three distinct tutorials.
osf.io/preprints/ps...
Very excited (w/ @omarjcamanto.bsky.social) to share our preprint tutorial for using our R 📦 dySEM for #dyadic data analysis with latent variables, in cross-sectional data sets.
This paper has been literal years in the making, and provides three distinct tutorials.
osf.io/preprints/ps...
July 10, 2025 at 2:44 PM
🧵
Very excited (w/ @omarjcamanto.bsky.social) to share our preprint tutorial for using our R 📦 dySEM for #dyadic data analysis with latent variables, in cross-sectional data sets.
This paper has been literal years in the making, and provides three distinct tutorials.
osf.io/preprints/ps...
Very excited (w/ @omarjcamanto.bsky.social) to share our preprint tutorial for using our R 📦 dySEM for #dyadic data analysis with latent variables, in cross-sectional data sets.
This paper has been literal years in the making, and provides three distinct tutorials.
osf.io/preprints/ps...
Reposted by Diego Guevara Beltran
🚨New article in Proc B:
"Reciprocity evolves more readily in competitive than cooperative socio-ecologies"
Using agent-based evolutionary models, we show that reciprocity emerges more reliably in competitive environments with high exploitation risk.
🔗 royalsocietypublishing.org/doi/10.1098/...
"Reciprocity evolves more readily in competitive than cooperative socio-ecologies"
Using agent-based evolutionary models, we show that reciprocity emerges more reliably in competitive environments with high exploitation risk.
🔗 royalsocietypublishing.org/doi/10.1098/...
Reciprocity evolves more readily in competitive than cooperative socio-ecologies | Proceedings of the Royal Society B: Biological Sciences
Tracking what others did and matching other’s expected actions is seen across a range
of biological systems. As reciprocal matching rewards and reinforces cooperators and
punishes and discourages non-...
royalsocietypublishing.org
July 9, 2025 at 5:00 AM
🚨New article in Proc B:
"Reciprocity evolves more readily in competitive than cooperative socio-ecologies"
Using agent-based evolutionary models, we show that reciprocity emerges more reliably in competitive environments with high exploitation risk.
🔗 royalsocietypublishing.org/doi/10.1098/...
"Reciprocity evolves more readily in competitive than cooperative socio-ecologies"
Using agent-based evolutionary models, we show that reciprocity emerges more reliably in competitive environments with high exploitation risk.
🔗 royalsocietypublishing.org/doi/10.1098/...
Reposted by Diego Guevara Beltran
Psychology & geography need one another to fulfil their mandates, but integrating them has been empirically challenging. A new perspective by Götz et al proposes a unifying Geographical–Psychological Interactionist Framework to inspire concrete & testable hypotheses.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
A unified framework integrating psychology and geography - Nature Human Behaviour
In this Perspective, Götz et al. propose the unifying Geographical–Psychological Interactionist Framework, which aims to integrate psychology and geography to account for the context in which human be...
www.nature.com
July 3, 2025 at 1:50 PM
Psychology & geography need one another to fulfil their mandates, but integrating them has been empirically challenging. A new perspective by Götz et al proposes a unifying Geographical–Psychological Interactionist Framework to inspire concrete & testable hypotheses.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Diego Guevara Beltran
"grandmother hypothesis holds that senior women's foraging and food sharing led to life history changes that favored mate guarding, not paternal provisioning, in the formation of nuclear family-like social units" doi.org/10.1002/evan...
Targeting the Hunting Hypothesis: Review of Evidence From the Hadza
The hunting hypothesis holds that ancestral human males favored their own mates and children in sharing meat gained from big game hunting, a practice said to have led to the origin of nuclear familie....
doi.org
June 26, 2025 at 2:21 AM
"grandmother hypothesis holds that senior women's foraging and food sharing led to life history changes that favored mate guarding, not paternal provisioning, in the formation of nuclear family-like social units" doi.org/10.1002/evan...
Reposted by Diego Guevara Beltran
New paper alert! Sex and strife in our closest ape relatives
Our paper in @RSocPublishing shows that bonobos and chimpanzees overlap in their use of sex during social tension
-w Jake Brooker and coauthors inc the late Frans de Waal, his last paper
royalsocietypublishing.org/doi/10.1098/...
Our paper in @RSocPublishing shows that bonobos and chimpanzees overlap in their use of sex during social tension
-w Jake Brooker and coauthors inc the late Frans de Waal, his last paper
royalsocietypublishing.org/doi/10.1098/...
March 6, 2025 at 11:03 AM
New paper alert! Sex and strife in our closest ape relatives
Our paper in @RSocPublishing shows that bonobos and chimpanzees overlap in their use of sex during social tension
-w Jake Brooker and coauthors inc the late Frans de Waal, his last paper
royalsocietypublishing.org/doi/10.1098/...
Our paper in @RSocPublishing shows that bonobos and chimpanzees overlap in their use of sex during social tension
-w Jake Brooker and coauthors inc the late Frans de Waal, his last paper
royalsocietypublishing.org/doi/10.1098/...
Reposted by Diego Guevara Beltran
How do individual differences in trait empathy manifest in everyday state experiences of empathy? In a new preprint @minzlicht.bsky.social and I address this question: osf.io/preprints/ps.... We find theoretically expected trait-state relationships✅, but also some surprises😲. We also find trait 1/2
February 28, 2025 at 11:44 PM
How do individual differences in trait empathy manifest in everyday state experiences of empathy? In a new preprint @minzlicht.bsky.social and I address this question: osf.io/preprints/ps.... We find theoretically expected trait-state relationships✅, but also some surprises😲. We also find trait 1/2
Reposted by Diego Guevara Beltran
5) @psycheddiego.bsky.social extended interdependence research by surveying Mayangna participants to examine how shared fate impacts their cooperation. The more positive stake & shared fate in relationships, the more people tended to cooperate. #EPatSPSP2025 #SPSP2025
February 23, 2025 at 6:01 AM
5) @psycheddiego.bsky.social extended interdependence research by surveying Mayangna participants to examine how shared fate impacts their cooperation. The more positive stake & shared fate in relationships, the more people tended to cooperate. #EPatSPSP2025 #SPSP2025
Reposted by Diego Guevara Beltran
Last, some highlights from the #EPatSPSP2025 datablitzes:
1) A seriously cool talk by @wnmerrell.bsky.social about how we infer clustered (patchy) resource distribution based on an area’s hierarchicalness (& vice versa). Who knew lobstering could be so socially complex?! #SPSP2025
1) A seriously cool talk by @wnmerrell.bsky.social about how we infer clustered (patchy) resource distribution based on an area’s hierarchicalness (& vice versa). Who knew lobstering could be so socially complex?! #SPSP2025
February 23, 2025 at 6:01 AM
Last, some highlights from the #EPatSPSP2025 datablitzes:
1) A seriously cool talk by @wnmerrell.bsky.social about how we infer clustered (patchy) resource distribution based on an area’s hierarchicalness (& vice versa). Who knew lobstering could be so socially complex?! #SPSP2025
1) A seriously cool talk by @wnmerrell.bsky.social about how we infer clustered (patchy) resource distribution based on an area’s hierarchicalness (& vice versa). Who knew lobstering could be so socially complex?! #SPSP2025
Reposted by Diego Guevara Beltran
🚨Excited that our meta-analysis is out in JPSP @APA_Journals. We synthesized 6 decades (1958-2017) of empirical evidence on social dilemmas and tested which structural features (most strongly) promote cooperation:
doi.org/10.1037/pspi...
1/10
doi.org/10.1037/pspi...
1/10
November 5, 2024 at 9:40 AM
🚨Excited that our meta-analysis is out in JPSP @APA_Journals. We synthesized 6 decades (1958-2017) of empirical evidence on social dilemmas and tested which structural features (most strongly) promote cooperation:
doi.org/10.1037/pspi...
1/10
doi.org/10.1037/pspi...
1/10
Reposted by Diego Guevara Beltran
1/8. This week I had a few different conversations with scholars who, in the face of the attacks on science and institutions of learning in the U.S., are wondering what to do. One suggestion I have is: keep doing your work. It matters in and of itself. Why do I say that? A few reasons.
February 8, 2025 at 8:42 PM
1/8. This week I had a few different conversations with scholars who, in the face of the attacks on science and institutions of learning in the U.S., are wondering what to do. One suggestion I have is: keep doing your work. It matters in and of itself. Why do I say that? A few reasons.
Reposted by Diego Guevara Beltran
2/8. Let me start with a recent example. The President’s “Border Czar” was recently furious because *checks notes* people have learned too much about their rights, which kept his team from exploiting them. Think about that. Knowing your rights is considered a threat.
www.yahoo.com/news/trump-b...
www.yahoo.com/news/trump-b...
Trump’s Border Czar Whines That Many Immigrants Are Smarter Than ICE
Tom Homan is upset that ICE’s raids in Chicago aren’t as bad as they could be because many people know their rights.
www.yahoo.com
February 8, 2025 at 8:42 PM
2/8. Let me start with a recent example. The President’s “Border Czar” was recently furious because *checks notes* people have learned too much about their rights, which kept his team from exploiting them. Think about that. Knowing your rights is considered a threat.
www.yahoo.com/news/trump-b...
www.yahoo.com/news/trump-b...
Reposted by Diego Guevara Beltran
"Women with more support from a loving and helpful partner were at significantly lower risk for depression. Conversely, conflicting or controlling relationships elevated the risk of depression"
www.hbes.com/maternal-dep...
#EvPsych #HBES
www.hbes.com/maternal-dep...
#EvPsych #HBES
Maternal Depression: A Catalyst for Cooperation? - HBES
Image: woman in Uganda – by Alessandra Cassar Women around the world experience maternal depression, particularly around the time of pregnancy and childbirth. With around 10-15% of mothers in high-inc...
www.hbes.com
February 9, 2025 at 12:46 AM
"Women with more support from a loving and helpful partner were at significantly lower risk for depression. Conversely, conflicting or controlling relationships elevated the risk of depression"
www.hbes.com/maternal-dep...
#EvPsych #HBES
www.hbes.com/maternal-dep...
#EvPsych #HBES
🚨Research Assistant Call: Fieldwork in Amak, Nicaragua (~5/15/25 - 6/6/25)!
Are you interested in cooperation in small-scale societies? I'm looking for a research assistant to help in the next cycle of data collection!
📩Interested? pls contact: dguevarabeltran@arizona.edu
Are you interested in cooperation in small-scale societies? I'm looking for a research assistant to help in the next cycle of data collection!
📩Interested? pls contact: dguevarabeltran@arizona.edu
February 3, 2025 at 2:01 AM
🚨Research Assistant Call: Fieldwork in Amak, Nicaragua (~5/15/25 - 6/6/25)!
Are you interested in cooperation in small-scale societies? I'm looking for a research assistant to help in the next cycle of data collection!
📩Interested? pls contact: dguevarabeltran@arizona.edu
Are you interested in cooperation in small-scale societies? I'm looking for a research assistant to help in the next cycle of data collection!
📩Interested? pls contact: dguevarabeltran@arizona.edu