Through the conversation.
20 sections010:00 – 5:22Introduction and Overview of Pat Barclay's Research
Hosts Dave Pietraszewski and David Pinsoff introduce guest Pat Barclay from the University of Guelph, praising his influential work on cooperation, altruism, and social partner choice in evolutionary social sciences.
Pat is one of those people who I wish would be the poster child for what evolutionary psychology is.
“Pat is one of those people who I wish would be the poster child for what evolutionary” 1:24
He does work on on one of the most interesting and important topics, which is cooperation, altruism
“he does work on on one of the most interesting and important topics, which is” 1:37
025:22 – 12:01Proximate and Ultimate Explanations in Cooperation
The hosts and Pat Barclay discuss the confusion between proximate mechanisms and ultimate Darwinian functions in behavioral literature, exploring why people mix up how the mind works with how it got there through selection pressures.
The cooperation literature has been particularly prone to this proximate and ultimate confusion.
“the cooperation literature has been particularly prone to this” 7:37
Some people want to investigate how the mind works, while others like the why questions of evolutionary function.
“some people are naturally attracted to how questions. How does this thing work?” 8:46
0312:01 – 18:38Reputation, Genuine Altruism, and Evolutionary Explanations
Dave Pietraszewski, David Pinsof, and Pat Barclay discuss how human psychology evaluates cooperation and reputation. The speakers explore why admitting to reputation-seeking motives can trigger negative inferences about a person's genuine care for others, contrasting this with intrinsic motivations like parental love or close friendship, and how evolved psychology interprets Darwinian fitness explanations.
What we're ultimately trying to assess is how competent are you
“What we're ultimately trying to assess is how competent are you” 12:56
the our evolved psychology is by default interpreting explanations for cooperation as descriptions of underlying motivations
“the our evolved psychology is by default interpreting” 16:03
0418:38 – 24:05Stakeholder Altruism and Evolutionary Theories of Helping
David Pinsof and Pat Barclay examine stakeholder altruism, where individuals help others because of an intrinsic stake in their well-being and survival rather than strict reciprocity or reputation. They discuss historical precedents for this concept in evolutionary theory, including mutualism and irreplaceability, and how people strategically frame their cooperative motives.
where you're not helping to because they're genetically related, you're not helping to get reciprocated
“where you're not helping to because they're genetically related, you're not helping to get” 19:30
The example that I like to use best is imagine there is a tree that gives you shade
“imagine there is a tree that gives you” 23:29
0524:05 – 32:23Evolutionary Approaches to Friendship and Stakeholder Altruism
Dave Pietraszewski, David Pinsof, and guest Pat Barclay discuss stakeholder altruism, the bankers' paradox, and the alliance hypothesis in explaining friendship and conflict support. They examine how individuals value others based on reciprocity, shared stakes in well-being, and outside options, drawing comparisons to cleaner fish behavior studied by Redwan Bashari.
there are basically two approaches to friendship that exist
“there are basically two approaches to friendship that exist” 27:42
the extent to which somebody's gonna be nice is gonna depend not just on how much stake they have, but what that other individual's outside options are
“the extent to which somebody's gonna be nice is gonna depend not just on how much stake they have, but what that other individual's outside options are” 32:12
0632:23 – 36:08Proximate Motivations, Altruism, and Parental Investment
The speakers discuss the importance of understanding accurate proximate motivations and evolutionary logic rather than relying solely on feelings of virtue when trying to effectively help others. They also connect these functional perspectives to parental investment, referencing research by Martin Daly and Margot Wilson on genetic stakes and parental love.
if we want to actually help as many kids as possible, we need to be accurate about why, what's the approximate motivation?
“if we want to actually help as many kids as possible, we need to be accurate about why, what's the approximate motivation?” 33:04
an evolutionary perspective would say that people are going to love their children more than other people's children
“an evolutionary perspective would say that people are going to love their children more than other people's children” 35:42
0736:08 – 42:50Evolutionary Perspectives on Stepfamilies and Conflict
The speakers discuss evolutionary perspectives on parental investment, examining how lower psychological thresholds for frustration in stepfamilies can be misconstrued as support for stepparental abuse or homicide. Citing researchers like Martin Daly and Margot Wilson, they explore how folk psychology often distorts scientific claims about kin versus non-kin relationships.
human beings are not like lions. Here's why we would not expect stepparents to kill their children
“human beings are not like lions. Here's why we would not expect stepparents to kill their children” 40:49
citing this research as saying something it's not, saying that there are adaptations to specific individuals
“citing this research as saying something it's not, saying that there are adaptations to kill specific individuals” 41:21
0843:09 – 48:08Reputational Benefits and Motives in Charitable Giving
Dave Pietraszewski, David Pinsof, and Pat Barclay examine why people push back against evolutionary explanations of prosocial behavior like charity. They analyze how highlighting reputational motives can undermine the very benefits of generosity, leading people to disavow self-interested or signaling reasons behind cooperative acts.
the mere awareness that I'm trying to look good makes me not look good
“the mere awareness that I'm trying to look good makes me not look good” 44:33
if you show that somebody benefits from their generosity, people will then judge that person not as well
“if you show that somebody benefits from their generosity, people will then judge that person not as well.” 45:26
Dave Pietraszewski, David Pinsof, and guest Pat Barclay discuss how reputational benefits and stakeholder psychology influence cooperation. They examine whether highlighting instrumental motives undermines intrinsic generosity, how groups monitor behavior, and how institutional structures like advertising or international trade can shape human concerns for others' welfare.
international trade provides a vested interest in the well-being of people in other countries.
“suddenly we have a vested interest in the people in that other country” 54:29
The hosts transition to discussing the foundational evolutionary problem of cooperation, referencing Charles Darwin's puzzles regarding altruism in social insects. They explore why helping others can initially appear maladaptive due to the risk of free riders, and review classic solutions such as kin selection and reciprocity.
helping others appears maladaptive because it incurs costs that selfish individuals can avoid.
“helping others would seem to be maladaptive. You are incurring a cost” 57:32
William Hamilton proposed kin selection to explain how altruism toward relatives could proliferate.
“William Hamilton's great insights is the idea that if there were a gene or set of genes that influenced altruistic behavior” 58:29
Hosts Dave Pietraszewski and David Pinsof converse with guest Pat Barclay about his academic origin story, discussing how computer simulations of cooperation sparked his interest in evolutionary psychology and how he was drawn to careful, rigorous scientific literature that thoughtfully addressed alternative explanations and control conditions.
that's what got me into this stuff in the first place
“And like that's what got me into this stuff in the first place.” 1:00:16
realized that that's how to do good, solid science
“realized that that's how to do good, solid science” 1:03:31
121:04:24 – 1:12:15Proximate Mechanisms and Evolutionary Novelty in Laboratory Cooperation
The speakers examine confusion over proximate and ultimate causes in cooperation research, discussing how evolved psychological mechanisms and social emotions like guilt operate in evolutionarily novel or artificial laboratory environments where traditional social consequences are absent.
there was definitely a lot of confusion in the early 2000s, a lot of confusion over proximate ultimate causes
“there was definitely a lot of confusion in the early 2000s, a lot of confusion over proximate ultimate causes.” 1:04:24
In a lab experiment, we just create we create a situation where we sever the link between action the action and the normal consequences
“In a lab experiment, we just create we create a situation where we sever the link between action the action and the normal consequences.” 1:09:09
Host Dave Pietraszewski and guest Pat Barclay discuss how the high costs of getting caught cheating influence human behavior, risk assessment, and decision-making in anonymous or artificial lab settings. They examine how people apply real-world heuristics to online games and why researchers often overinterpret initial experimental data.
And in many cases, the latter is is is more expensive, right?
“And in many cases, the latter is is is more expensive, right?” 1:12:34
So if you chuck somebody in a lab environment for the first time, this is a bit of a new environment.
“So if you chuck somebody in a lab environment for the first time” 1:14:56
The speakers discuss the pitfalls of flashy scientific claims versus rigorous, methodical research. Pat Barclay then explains his work on competitive helping and biological markets, detailing how individuals signal their willingness and ability to be valuable partners in social exchange.
The idea that you should be entertained is a really dangerous idea from like a epistemic stance to take towards the world.
“the idea that you should be entertained is a really dangerous idea from like a” 1:19:45
So some of the stuff I'm known for, competitive helping, is the the idea that we are only implicitly competing in a in a biological market over social partners, right?
“competitive helping, you know, is the the idea that we are only implicitly competing” 1:21:51
Dave Pietraszewski, David Pinsof, and Pat Barclay discuss the biological market framework for partnerships, emphasizing how local environments, supply and demand, individual differences, and compensatory strategies shape cooperation, partner choice, and what traits are valued in social partners.
It's not just what are their options, but also what are their needs, right?
“not just what are their options, but also what are their needs” 1:27:35
What gets valued in a partner can vary from environment to environment, depending on the local supply and demand.
“what gets valued in a partner can vary from environment to environment, depending on the” 1:28:41
161:31:24 – 1:36:22Reconciling Partner Choice Psychology with Intergroup Conflict and Ideology
David Pinsof floats an idea regarding the tension between partner choice psychology and intergroup competition, suggesting that political narratives and moral pretexts help reconcile this conflict by reassuring group members and maintaining cooperative value. Pat Barclay responds to the proposal and notes connections to signaling within the in-group.
A fundamental conflict exists between wanting to appear as a peaceful partner and engaging in lopsided intergroup resource exploitation.
“there's a fundamental conflict here, and that it's hard to say violently attack an” 1:33:05
Political narratives and moral pretexts may function to reconcile the conflict between partner choice psychology and intergroup competition.
“function to reconcile this conflict between partner choice psychology on the one hand” 1:33:57
Dave Pietraszewski, David Pinsof, and Pat Barclay discuss the foundational figures of evolutionary psychology, Martin Daly and Margot Wilson, exploring their background in animal behavior, their pioneering homicide and parenting research inspired by Sarah Hrdy's work on lions, and the intellectual history behind naming the field.
Martin Daly and Margot Wilson are two of the founders of the field of evolutionary psychology.
“Martin Daly and Margot Wilson are
uh two of the founders of the field” 1:36:51
Margot Wilson advocated for calling the discipline evolutionary psychology rather than Darwinian psychology to focus on scientific ideas rather than individuals.
“Margot Wilson was the one who actually it was really pushing for
evolutionary psychology to be the the name” 1:41:48
The speakers reflect on Margot Wilson's mentorship, her human warmth paired with uncompromising scientific standards, and the importance of self-policing research quality to ensure studies withstand replication crises and maintain long-term impact.
Margot Wilson combined exceptionally warm and generous mentorship with rigorous scientific demands to help researchers reach their full potential.
“Margot Wilson was one of the loveliest human beings
ever, just very warm, very generous just a person.” 1:45:49
Combining scientific rigor with supportive mentorship helps the field produce solid work that survives the replication crisis.
“I love that attitude of combining very strong scientific rigor, but also with the
warmth to be like, okay, let us let's bring up everybody” 1:47:42
Dave Pietraszewski, David Pinsof, and Pat Barclay discuss the value of private, constructive criticism in scientific research compared to flashy public commentary. They then transition to discussing the research legacy of Margot, highlighting her work using homicide data as a rich, behavior-based dataset that avoids self-reporting and social desirability biases.
The speakers discuss how homicide records provide an objective dataset with strong motivations and less self-reporting bias than standard psychological experiments.
“you don't have like self-you know self-reporting bias, right?” 1:51:18
In the closing segment, Dave Pietraszewski and David Pinsof thank guest Pat Barclay for his contributions to studying cooperation and for joining the podcast. The hosts then encourage listeners to review, share, and help spread the word about the show to support its reach.
The hosts thank Pat Barclay for his work on cooperation and express their appreciation for his time.
“thank you for for helping solve this this problem of cooperation” 1:52:32