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X-ORIGINAL-URL:https://bec.ucla.edu
X-WR-CALDESC:Events for Center for Behavior, Evolution, and Culture
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20041004T000000
DTEND;TZID=America/Los_Angeles:20041004T000000
DTSTAMP:20201006T231356Z
CREATED:20200922T213549Z
LAST-MODIFIED:20201006T231356Z
UID:3965-1096848000-1096848000@bec.ucla.edu
SUMMARY:Martie Haselton - Ovulatory Shifts in Women's Desires
DESCRIPTION:Martie Haselton: UCLA Department of Communication StudiesOvulatory cycle research reveals a hidden side of female desire. Near ovulation\, women feel increased attraction to extra-pair mates\, and they place a premium on “sexy” characteristics in men. Their primary mates respond with increased jealousy. Ovulatory shifts in women’s desires are expressed conditionally–for example\, they are stronger in women mated to high investing but low attractiveness men. These findings suggest antagonistically coevolved strategies in men and women\, and they provide support for the good genes hypothesis of multiple mating by women.
URL:https://bec.ucla.edu/event/martie-haselton-ovulatory-shifts-in-womens-desires/
CATEGORIES:Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20041011T000000
DTEND;TZID=America/Los_Angeles:20041011T000000
DTSTAMP:20201006T231355Z
CREATED:20200922T213550Z
LAST-MODIFIED:20201006T231355Z
UID:3966-1097452800-1097452800@bec.ucla.edu
SUMMARY:Ted Bergstrom - On the Economics of Polygyny
DESCRIPTION:Ted Bergstrom: UCSB Department of EconomicsAbout 80% of all societies recorded by anthropologists are polygynous (men have many wives).  Even our own society is less monogamous than claimed.  This paper attempts to explain  such mysteries as why  bride prices and dowries are not “opposites”\, why polygamous societies are usually characterized by positive bride prices and dowry is mainly confined to monogamous societies\,  why polyandry (women having multiple husbands) is rare\, but not extinct\, and why the more you have to pay for a wife the better you will treat her.http://www.bec.ucla.edu/polygyny3.pdf
URL:https://bec.ucla.edu/event/ted-bergstrom-on-the-economics-of-polygyny/
CATEGORIES:Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20041018T000000
DTEND;TZID=America/Los_Angeles:20041018T000000
DTSTAMP:20201006T231355Z
CREATED:20200922T213550Z
LAST-MODIFIED:20201006T231355Z
UID:3967-1098057600-1098057600@bec.ucla.edu
SUMMARY:Andrew Shaner - Schizophrenia: What's Love Got To Do With It?
DESCRIPTION:Andrew Shaner: David Geffen UCLA School of MedicineSchizophrenia should not exist. It crushes sexual relationships and reproductive success and thus should have been eliminated long ago by selection. Yet it persists at a global prevalence far too high to be due to new mutations at a few loci. This has convinced scientists that many loci must be involved. But what evolutionary basis might there be for mutations at so many loci to produce the same disorder?\nIn a paper to be published in Schizophrenia Research\, my coauthors and I propose an answer using one of the most recent and provocative developments in evolutionary theory: costly signaling theory and its application to sexually selected traits such as bright feathers and mating calls. According to costly signaling theory\, only individuals with the best genes can grow the most attractive versions of sexually selected traits. Consequently\, these traits serve as fitness indicators. Individuals who prefer mates displaying the most fully developed forms of these traits increase the fitness of their offspring.\nBased on this theory\, we propose that schizophrenia persists because it is the unattractive extreme of sexually selected fitness indicator — that it is analogous to a small\, dull peacock’s tail. We suspect that the indicator trait itself-the human equivalent of a peacock’s tail — is the uniquely human capacity for verbal courtship (e.g.\, telling stories and jokes to potential mates) and the symptoms of schizophrenia are aberrant and unsuccessful versions of verbal courtship. This speculation helps illustrate our hypothesis\, yet is unnecessary for our explanations and predictions. These depend only on a few general properties of sexually selected traits. \nIn this talk\, I review sexual selection and fitness indicators\, introduce our new model of schizophrenia\, discuss its explanatory power\, explain how it resolves the evolutionary paradox\, discuss its implications for gene hunting\, and identify some empirically testable predictions as directions for further research.http://bec.ucla.edu/papers/Shaner2004.pdf
URL:https://bec.ucla.edu/event/andrew-shaner-schizophrenia-whats-love-got-to-do-with-it/
CATEGORIES:Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20041025T000000
DTEND;TZID=America/Los_Angeles:20041025T000000
DTSTAMP:20201006T231355Z
CREATED:20200922T213644Z
LAST-MODIFIED:20201006T231355Z
UID:3969-1098662400-1098662400@bec.ucla.edu
SUMMARY:Yaniv Hanoch - Emotions\, boundedly rational agents and the fast and frugal perspective
DESCRIPTION:Yaniv Hanoch: UCLA School of Public Health\, Department of Health ServicesHerbert Simon has warned us that an explanatory account of human rationality must identify the significance of emotions for choice behavior. Customarily emphasizing the cognitive dimensions of decision making\, relatively few researchers have paid close attention to specifying the complex ways in which emotion may shape human thinking and decisions. Accordingly\, this paper is an attempt to follow Simon’s suggestion and specify how emotions can enter into the theory of bounded rationality. To accomplish our task\, we capitalize on Rom Harré’s work on causal powers\, from which we propose a strategy to study the significance of emotion in decision-making processes. In an attempt to elaborate on an explanation of behavior by mechanism\, we discuss a version of bounded rationality recently put forward by Gigerenzer\, Todd\, and the ABC Research Group (Gigerenzer et al. 1999; Gigerenzer & Selten 2001)\, the so-called adaptive toolbox of fast and frugal heuristics. Coupled with insights from evolutionary psychology and neuroscience\, this version of bounded rationality gives us a better grasp of the functional role of emotions within the human decision machinery.http://www.bec.ucla.edu/emotionalmechanismBEC.pdf
URL:https://bec.ucla.edu/event/yaniv-hanoch-emotions-boundedly-rational-agents-and-the-fast-and-frugal-perspective/
CATEGORIES:Past Presentation,Presentation
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