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DTSTART;TZID=America/Los_Angeles:20080204T000000
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DTSTAMP:20201013T004835Z
CREATED:20200922T214024Z
LAST-MODIFIED:20201013T004835Z
UID:4063-1202083200-1202083200@bec.ucla.edu
SUMMARY:Aaron Blaisdell - Intervention and Causal Inferences in Rats
DESCRIPTION:Aaron Blaisdell: UCLA Psychology and Brain Research InstituteI report a series of experiments showing that rats appear to make causal inferences in a basic task that taps\ninto core features of causal reasoning. (1) They derived predictions of the outcomes of interventions after\npassive observational learning of different kinds of causal models. After learning through Pavlovian\nobservation that Event A was a common cause of Events X and Food (XßAàFood)\, rats predicted Food when\npresented with Event X as a cue but discounted the alternative cause A when they generated X by means of a\nlever press. (2) Rats showed evidence of reality monitoring. After learning an XàAàFood causal chain where\nX was a tone and A was a light\, when tested on X rats expected A to occur. But when A did not occur during\ntesting\, rats did not expect food. By hiding the light during testing on X\, however\, rats showed no disruption of\nfood expectancy\, suggesting that rats understood that A was unobservable. (3) Finally\, we present evidence\nthat rats treated their actions as special in causal learning. Discounting of a previous cause was only\nobserved with interventions but not with other observable events; rats were capable of flexibly switching\nbetween observational and interventional predictions; and discounting occurred on the very first test trial.\nThese results confirm causal-model theory but refute associative theories.http://www.bec.ucla.edu/Blaisdell_Paper.pdf
URL:https://bec.ucla.edu/event/aaron-blaisdell-intervention-and-causal-inferences-in-rats/
CATEGORIES:Past Presentation,Presentation
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20080211T000000
DTEND;TZID=America/Los_Angeles:20080211T000000
DTSTAMP:20201013T004835Z
CREATED:20200922T214024Z
LAST-MODIFIED:20201013T004835Z
UID:4064-1202688000-1202688000@bec.ucla.edu
SUMMARY:Steve Gangestad - Human Estrus: Function and Phylogeny
DESCRIPTION:Steve Gangestad: University of New Mexico PsychologyBroad\, ambitious conceptualizations of the evolution of human sexuality (and accompanying unique social\,\ndevelopmental\, and intellectual adaptations) offered by anthropologists and biologists over the last half\ncentury have been\, almost universally\, rooted in a foundational assumption: That women evolutionarily “lost”\nestrus—a distinct fertile-phase sexuality—and instead evolved “continuous” sexuality across the reproductive\ncycle\, which functioned to “conceal” ovulation. Recent research suggests that this assumption is wrong;\nwomen clearly do exhibit a distinct “fertile-phase” sexuality. This talk addresses a number of questions about\nthe conceptual significance and theoretical meaning of these recent findings: (a) Is this fertile phase sexuality\nappropriately referred to as human “estrus\,” and\, if so\, on what basis?; (b) What selection pressures shaped\nfertile-phase sexuality; was it shaped through direct selection or through indirect selection (i.e.\, as\nbyproduct)?; (c) Recent evidence also suggests that men respond differently to women as a function of their\nphase (typically\, being more attracted to women in their fertile phases than women in their luteal phases); is\nwomen’s fertility in fact not concealed? A general reinterpretation of women’s purported “lost estrus\,”\ncontinuous sexuality\, and concealment of fertility will be offered. The theme that a proper understanding of\nhuman sexuality requires a broader comparative perspective than is often brought to bear in evolutionary\npsychology is stressed.
URL:https://bec.ucla.edu/event/steve-gangestad-human-estrus-function-and-phylogeny/
CATEGORIES:Past Presentation,Presentation
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20080225T000000
DTEND;TZID=America/Los_Angeles:20080225T000000
DTSTAMP:20201013T004835Z
CREATED:20200922T214025Z
LAST-MODIFIED:20201013T004835Z
UID:4065-1203897600-1203897600@bec.ucla.edu
SUMMARY:John Mitani - Cooperation in wild chimpanzees
DESCRIPTION:John Mitani: University of Michigan Anthropology
URL:https://bec.ucla.edu/event/john-mitani-cooperation-in-wild-chimpanzees/
CATEGORIES:Past Presentation,Presentation
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