Ed Hagen Profile picture
May 14, 2021 14 tweets 6 min read Read on X
There is gold in "unpublished" dissertations

According to #evopsych, it's not surprising that male tourists pay for sex with locals. What is surprising, as April Gorry found, is that women do the same. Is #evopsych wrong about women's mating psychology? In some ways, yes:

A 🧵
2. White women tourists visiting the Caribbean and other warm-weather locales are stereotyped as sex-starved nymphomaniacs lusting after sexually potent dark-skinned men. Where did this myth come from?
3. Western tourist women often do enter into sexual relationships with local men in Belize, where Gorry did her fieldwork, and many other resort locations:
4. The men that tourist women choose seem to lack all the qualities, such as financial resources and status, that #evopsych claims they should have. In an apparent reversal of sex roles, tourist women often provide their sexual partners with substantial financial resources:
5. What's going on? Women tourists unfamiliar w/ the local culture don't recognize the men's low status but do notice universal aspects of their mate quality. First, men display cues of competency & mastery of the physical & social environments, which indicate resource potential:
6. Second, the men exhibit powerful cues of investment and devotion:
7. Gorry's female informants describe intense emotional experiences:
8. But in many cases it's a hustle. Local men at the bottom of the economic and ethnic hierarchy learn to feign indicators of romantic love in order to obtain sexual and financial benefits from tourist women:
9. The motivations of the men, however, are not quite so simple:
10. Gorry concludes her dissertation with an analysis of #RomanceNovels. The male heroes are universally portrayed as masters of their physical and social environments...
11. ...and the heroes are obsessed with the heroine.

In ancestral environments, competence and devotion would have been reliable indicators of male mate value, and are probably stronger cues than the evolutionarily novel financial resources often emphasized in #evopsych:
12. If you research sex and mating from an evolutionary perspective, check it out.
13. Her 1994 MA thesis on #femalecompetition looks interesting too (not sure if it's available anywhere):

/end
Postscript. The informants for the romance tourist study:

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More from @ed_hagen

Apr 4
1. Does research by @CaraOcobock @Anthrofuentes & others, widely reported in SciAm & elsewhere, finally dispel hunter-gatherer myths that have persisted since the 60's?

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Mar 23
1. What's at risk by disrupting NIH? With only a bit of hyperbole: a mechanistic understanding of life itself, & therefore better treatments for cancer, dementias, autoimmune disorders, neurodegenerative diseases, birth defects, aging & more.

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Nov 9, 2024
1. I intend to positively cite Eppig et al. (2010) despite its retraction for use of the discredited Lynn and Vanhanen national IQ dataset. 🧵

tl;dr: don't throw the baby out with the bathwater
royalsocietypublishing.org/doi/10.1098/rs…RETRACTED: Parasite prevalence and the worldwide distribution of cognitive ability
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Jun 25, 2024
1. Ethical research in evolutionary psychology (EP) and human genetics (HG): A view from a cynical sociobiologist (me). 🧵
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Apr 9, 2024
1. According to some, this article provides strong empirical evidence for nonbinary biological sex, so I took a look.

tl;dr: ironically, the article reinforces the case for binary biological sex. 🧵
academic.oup.com/icb/article/63…
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Sexual reproduction, the recombination of two parental genomes into one offspring genome, is very widespread in eukaryotes. This 2→1 mode of reproduction has many evolutionary consequences...
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* Disassortative fusion
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Read 23 tweets
Apr 6, 2024
1. Much human genetic variation is phenotypically meaningless. Why? Cooperative genes are locked in a forever war w/ selfish genes. The cooperative genes have won most battles but now our genomes are littered with the dead & decaying bodies of a million selfish genes. 🧵 AI generated image of cooperative warriors blasting an enemy warrior
2. Genome sizes vary tremendously in ways that do not obviously relate to organism complexity, e.g., many fish and amphibians have huge genomes compared to mammals (note that the number of base pairs on the x-axis is on a log scale):
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Book covers of Adaptation and Natural Selection (Williams) and The Selfish Gene (Dawkins)
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