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Exam 1 T 2/22 in class Take home sent today... due T 2/22 at 8am Q&A M 2/21, 5-7pm in WEL 2.312
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There is no genetic definition of race.
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Proposed model of human evolution/ migration (based on mt and nuclear DNA) Out of Africa of Homo erectus Out of Africa Out of Africa of Homo sapiens Expansion from Asia to Africa Additional migrations Fig 9
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Humans have been constantly moving and migrating. Any geographic location contains people with DNA from many different other areas...
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There is no genetic definition of race.
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Is racism genetic?
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Input to brain is filtered. What are you paying attention to?
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Are humans better at detecting certain threats vs non-threatening objects?
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Emotion Drives Attention: Detecting the Snake in the Grass Journal of Experimental Psychology: General 2001, Vol. 130, No. 3, 466-478 Arne Ohman, Anders Flykt, and Francisco Esteves
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Fig 1. Emotion Drives Attention: Detecting the Snake in the Grass (2001) J. of Ex. Psy., Vol. 130, No. 3, 466-478 Ability to detect snake or spider versus flower or mushroom by grid position
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Fig 1. Emotion Drives Attention: Detecting the Snake in the Grass (2001) J. of Ex. Psy., Vol. 130, No. 3, 466-478 Ability to detect snake or spider versus flower or mushroom by grid position
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Fig 2. Emotion Drives Attention: Detecting the Snake in the Grass (2001) J. of Ex. Psy., Vol. 130, No. 3, 466-478 Ability to detect snake or spider versus flower or mushroom is relatively quicker in a larger grid
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The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785 Andreas Olsson, Jeffrey P. Ebert, Mahzarin R. Banaji, Elizabeth A. Phelps http://www.sciencemag.org/cgi/content/full/309/5735/785 http://www.sciencemag.org/cgi/content/full/309/5735/785 This perspective accompanies the article and has some useful background and further discussion: http://www.sciencemag.org/cgi/content/full/309/573 5/711 http://www.sciencemag.org/cgi/content/full/309/573 5/711
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Fig 1. The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785 Conditioned fear:snakes/spiders
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Fig 1. The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785 Conditioned fear:race
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Fig 1. The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785 Conditioned fear: snakes/spidersrace
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Is Race Necessarily a Defining Characteristic? Can race be erased? Coalitional computation and social categorization (December 18, 2001) PNAS vol. 98 no. 26 pg 15387–15392 Robert Kurzban, John Tooby, and Leda Cosmides http://www.pnas.org/cgi/content/full/98/26/15387 http://www.pnas.org/cgi/content/full/98/26/15387
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My birthday is in April. My birthday is in June. My birthday is in August. My birthday is in January. My birthday is in July. My birthday is in October. My birthday is in May. My birthday is in February. Can race be erased? Coalitional computation and social categorization (December 18, 2001) PNAS vol. 98 no. 26 pg 15387–15392 Random Statements
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I like orange.Hook em’.I like to wear overalls. Go Horns.I like to wear chaps. I like Maroon. Gig em’. Go Aggies. Can race be erased? Coalitional computation and social categorization (December 18, 2001) PNAS vol. 98 no. 26 pg 15387–15392 Coalition Membership
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I like orange.Hook em’.I like to wear overalls. Go Horns. I like to wear chaps. I like Maroon. Gig em’. Go Aggies. When alternate coalition membership information is introduced, race is ignored.
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Despite a lifetime's experience of race as a predictor of social alliance, less than 4 min of exposure to an alternate social world was enough to deflate the tendency to categorize by race. These results suggest that racism may be a volatile and eradicable construct that persists only so long as it is actively maintained through being linked to parallel systems of social alliance. Can race be erased? Coalitional computation and social categorization (December 18, 2001) PNAS vol. 98 no. 26 pg 15387–15392
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Humans are highly skilled at grouping objects (like people). How we group people is largely determined by our environment.
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What makes us who we are? Nature, and Nurture Based on “Nature via Nurture” by Matt Ridley (2003)
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23 pairs of human chromosomes ½ of each pair is from mom and the other ½ from dad.
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Protein Genes code for proteins. Cells function because of proteins. Organisms are collections of cells. CB 5.26
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Protein The connection between genes and traits is rarely direct. What influences traits? Nature or Nurture? CB 5.26
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Nurture Imprinting: exposure to movement (environment) sets “mother”
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Nature X/Y chromosomes in humans: genes = traits XY XX
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Twin studies have been used to determine the heritability of various traits.
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Exam 1 T 2/22 in class Take home sent today... due T 2/22 at 8am Q&A M 2/21, 5-7pm in WEL 2.312
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