Christopher X J. Jensen
Associate Professor, Pratt Institute

Is family-linked terrorism a cultural and genetic phenomenon?

Posted 03 Dec 2015 / 0

National Public Radio “In Worst Attacks, Terrorists Often Have Fraternal Bonds” This is an interesting — albeit brief — piece on a recent “pattern” that has emerged in terror attacks: teams of attackers are often composed of blood relatives. As a good scientist I have to point out that there’s a danger here of over-generalizing Read More

A Major Post, Activism, Behavior, Behavioral Ecology, Belief, Breeders, Propagators, & Creators, Cultural Anthropology, Cultural Evolution, Data Limitation, Gene by Environment Interactions, Gene-Culture Coevolution, Genetics, Host-Pathogen Evolution, Human Evolution, Memetic Fitness, Mismatch theory, Phenotypic Plasticity, Public Policy, Radio & Podcasts, Resistance Evolution in Parasites, Social Diversity

Primates — but not their rodent relatives — can infer the effects of other individuals on resource availability

Posted 23 Nov 2015 / 0

Image courtesy of Frans de Waal via Wikimedia Commons Journal of Comparative Psychology “Inference in a social context: A comparative study of capuchin monkeys (Cebus apella), tree shrews (Tupaia belangeri), hamsters (Mesocricetus auratus), and rats (Rattus norvegicus)” This is not a surprising finding, but it reinforces the fact that the ability to understand the effects Read More

A Minor Post, Articles, Behavior, Empathy, Primates

Religious children are less altruistic… or maybe not…

Posted 16 Nov 2015 / 0

Image courtesy of Wikimedia Commons A recent study published in Current Biology claims to have demonstrated that children raised in religious households are less altruistic and more vindictive than their peers raised in non-religious households. Using two different tests — a Dictator Game conducted with stickers and a task that measured reactions to watching interpersonal Read More

A Minor Post, Altruism, Articles, Behavior, Behavioral Ecology, Cultural Evolution, Emotion, Empathy, Ethics, Group Selection, Human Nature, Multilevel Selection, Psychological Adaptation, Punishment, Religion, Reputation, Social Norms

Maybe infants don’t really care who helps and who hinders after all…

Posted 16 Nov 2015 / 0

PLoS ONE “Probing the Strength of Infants’ Preference for Helpers over Hinderers: Two Replication Attempts of Hamlin and Wynn (2011)” Great example of how studies need to be replicated! I am wondering if funding agencies should reserve particular lines for replication studies. Does this kind of funding opportunity exist?

A Minor Post, Altruism, Articles, Behavior, Cooperation, Development, Empathy, MSCI-463, The Evolution of Cooperation

Fascinating and clever study of how personal contact norms vary by relationship

Posted 10 Nov 2015 / 0

Image from PNAS Proceedings of the National Academy of Sciences “Topography of social touching depends on emotional bonds between humans” (Suvilehto et al. 2015) This is a really clever study in that it aggregates a lot of data that is collected rather efficiently from a lot of participants. This makes the results robust for this Read More

A Minor Post, Articles, Behavior, Behavioral Ecology, Communication, Cultural Anthropology, Cultural Evolution, Human Nature, MSCI-362, The Evolution of Sex, Social Networks, Social Norms

Jonathan Haidt on the business advantage of being ethical

Posted 10 Nov 2015 / 0

This is a fascinating talk by Jonathan Haidt, a psychologist situated within one of the most prestigious business schools in the world whose research focuses on morality and emotion. I can’t help but be impressed when someone addressing business concerns leads with biology, and Haidt does a good job of summarizing the “disruptive cooperation” (read: competitively-superior Read More

A Minor Post, Behavior, Competition, Cooperation, Cultural Evolution, Economics, Film, Television, & Video, Human Nature, Human Uniqueness, Multilevel Selection, Parasitism, Religion, Social Norms

That beard and deep voice may be to put him in his place, not attract her

Posted 09 Nov 2015 / 0

There have been a lot of evolutionary psychology experiments that have tried to define both female and male attractiveness to the opposite sex, an indirect way to get at the nature of sexual selection in humans. A new study published in Behavioral Ecology reminds us that sexual selection is not the only process that has Read More

A Minor Post, Articles, Behavior, Behavioral Ecology, Communication, Evolutionary Psychology, Human Uniqueness, MSCI-362, The Evolution of Sex, Psychological Adaptation, Quantifying Costs and Benefits, Reputation, Sex and Reproduction, Sexual Competition, Sexual Selection

What’s the evolved function of curiosity?

Posted 06 Nov 2015 / 0

Image courtesy of Jeffrey Pang via Wikimedia Commons Neuron “The Psychology and Neuroscience of Curiosity” (Kidd & Hayden 2015) This is a fantastic review of what is known about curiosity and what needs to be learned about curiosity in the near future. I was glad to see the “four questions” approach to curiosity here. Tinbergen’s questions Read More

A Minor Post, Behavior, Cognitive Ability, MSCI-261, The Evolution of Play, Neuroscience, Play, Psychological Adaptation, Psychology, Teaching

Group phenotypic composition: implications for individuals and their groups

Posted 22 Oct 2015 / 0

Trends in Ecology & Evolution “From Individuals to Groups and Back: The Evolutionary Implications of Group Phenotypic Composition” Man, I wish that this article was written in a more accessible manner, because what it presents is important. There is a critical feedback between how the composition of groups affects individuals and how individuals affect the Read More

A Minor Post, Articles, Evolutionary Modeling, Group Selection, Multilevel Selection, Natural Selection, Phenotypic Plasticity, Population Genetics, Social Diversity

The prickly (and largely unknown) sex life of bats

Posted 16 Oct 2015 / 0

BBC Earth “Why some male bats have spines on their penises” In my Evolution of Sex class we talk a lot about sperm competition, so spiky penises are nothing new to me. But I was not aware that bats had spined penises of such diversity. And I find it really interesting that because bat behavior Read More

A Minor Post, Behavior, Sex and Reproduction, Sperm Competition