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X-WR-CALDESC:Events for Center for Behavior, Evolution, and Culture
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DTSTART;TZID=America/Los_Angeles:20080505T000000
DTEND;TZID=America/Los_Angeles:20080505T000000
DTSTAMP:20201013T004834Z
CREATED:20200922T214126Z
LAST-MODIFIED:20201013T004834Z
UID:4073-1209945600-1209945600@bec.ucla.edu
SUMMARY:Debra Lieberman - It's all relative: Altruism\, sexual aversions\, and morality
DESCRIPTION:Debra Lieberman: U of Hawaii PsychologyMechanisms for detecting kin rely on cues that correlated with relatedness in ancestral environments to adaptively regulate mate selection and altruistic effort. For siblings\, one potential cue\, proposed by Edward Westermarck\, is co-residence duration. Another cue that would have been highly predictive of siblingship is seeing one’s mother caring for a newborn. Data from a series of investigations show that these two cues regulate the development of altruistic motivations\, sexual aversions\, and\, as a by-product\, moral sentiments relating to incest. Revisiting the natural experiments that fueled the discussion over how sexual aversions and moral sentiments develop\, I show that these two cues also explain the data from the Taiwanese minor marriages. Furthermore\, I provide new evidence that childhood co-residence predicts altruistic tendencies\, sexual aversions\, and moral sentiments in individuals raised in the communal fashion of the Israeli Kibbutzim.
URL:https://bec.ucla.edu/event/debra-lieberman-its-all-relative-altruism-sexual-aversions-and-morality/
CATEGORIES:Past Presentation,Presentation
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20080512T000000
DTEND;TZID=America/Los_Angeles:20080512T000000
DTSTAMP:20201013T004834Z
CREATED:20200922T214126Z
LAST-MODIFIED:20201013T004834Z
UID:4074-1210550400-1210550400@bec.ucla.edu
SUMMARY:Peter Todd - Investigating mate search with simulation and speed-dating
DESCRIPTION:Peter Todd: U of Indiana Cognitive Science\, Informatics\, and Psychological and Brain SciencesThe choice of a mate is not only one of the most important decisions in our lives\, but also one of the most difficult\, fraught by lack of knowledge of the options to come and inability to return to options already passed by.  How do we make this challenging sequential choice\, at the same time we are trying to convince someone else to choose us—and more specifically\, how do we decide when our search is over?  To find out\, we could follow a set of individuals through multiple relationships over an extended period of time—or we can speed things up: We can build simulated mate-seekers who embody plausible decision rules for searching for partners\, and see how they fare in an artificial mating market\, comparing their behavior to that of aggregated humans.  We can also speed up human mate-seekers themselves\, by having them participate in speed-dating events and observing their searches as they meet and interact with a succession of potential partners.  With these methods we are testing a satisfying search model that adjusts mate aspiration levels lower after failed relationships and higher after successful ones.  We are also able to test other hypotheses about the kinds of mate choices people make\, and how well matched they end up being.
URL:https://bec.ucla.edu/event/peter-todd-investigating-mate-search-with-simulation-and-speed-dating/
CATEGORIES:Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20080519T000000
DTEND;TZID=America/Los_Angeles:20080519T000000
DTSTAMP:20201013T004834Z
CREATED:20200922T214127Z
LAST-MODIFIED:20201013T004834Z
UID:4075-1211155200-1211155200@bec.ucla.edu
SUMMARY:Katie Hinde - Magnitude\, Sources\, and Consequences of Individual Variation in Milk Production in Rhesus Macaques
DESCRIPTION:Katie Hinde: UCLA AnthropologyLactation represents the greatest post-natal cost of mothering in primates and numerous studies have\nestablished that variation in maternal condition is associated with infant growth\, development\, health\, and\nsurvival. Presumably the effects of maternal condition are mediated through milk output during lactation\,\nhowever this relationship remains poorly understood. Here I present the first systematic investigation of the\nmagnitude\, sources\, and consequences of individual variation in mother’s milk for an Old World monkey.\nRhesus macaques produce dilute milk typical of the primate order\, however there was substantial variation\nbetween mothers\, as well as within mother\, over lactation in milk composition and yield\, and therefore the milk\nenergy available for the infant. Maternal life history was associated with milk yield and milk energy density was\nbiased in favor of sons\, especially first-born sons. Infants that had higher available milk energy at one month\nof age were characterized by higher activity levels and greater confidence at 3.5 months of age suggesting that\nmother’s milk may serve as a nutritional cue that calibrates infant behavior and temperament to maternal\nand/or environmental conditions. These results\, obtained from a well-fed captive population\, demonstrate that\nsmall differences between mothers can have important implications for lactational investment and infant\noutcomes.
URL:https://bec.ucla.edu/event/katie-hinde-magnitude-sources-and-consequences-of-individual-variation-in-milk-production-in-rhesus-macaques/
CATEGORIES:Past Presentation,Presentation
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