Are you genetically programed to be racist?
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Transcript of Are you genetically programed to be racist?
Are you geneticallyprogramed to be
racist?
Exam #1 F 2/13
Bonuses posted
DNA is passed from generation to generation, and therefore can tell us about relationships between species.
Fig 34.40
How are we related to our ancestors, and where did we come from?
Fig34.42
mitochondria
Traits coded for by mtDNA are inherited only through mother
Fig 4
The mutation rate in human mtDNA is one nucleotide change per 20,000 years.ORA difference of one nucleotide between two people indicates a common relative 10,000 years ago.
Multiregional hypothesis
“Out of Africa” hypothesis
Two hypotheses about the origin of H. sapiens
7 Daughters of Eve, fig. 1
Relationships of different populations using mtDNA
~150,000ya
Multiregional hypothesis
“Out of Africa” hypothesis
Two hypotheses about the origin of H. sapiens
X
7 Daughters of Eve, fig. 2
From Science v298 12/20/02 pg 2381
•93-95% of genetic variation within population.
•3-5% of genetic variation occurs between populations.
Relationships of different people using mtDNA.
“Man’s Most Dangerous Myth: the Fallacy of Race” by Ashley Montagu
“Man’s Most Dangerous Myth: the Fallacy of Race” by Ashley Montagufirst published in 1942
There is no genetic definition of race.
Humans have been constantly moving and migrating. Any geographic location contains people with DNA from many different other areas...
Proposed model of human evolution/migration
Out of Africa of Homo erectus
Out of Africa
Out of Africa of Homo sapiens
Expansion from Asia to Africa
Additional migrations
Fig 9
Humans have been constantly moving and migrating. Any geographic location contains people with DNA from many different other areas...
The nervous system allows us to perceive the environment while the brain integrates the incoming signals to determine an appropriate response.
Input to brain is filtered. What are you paying attention to?
Active seeking of infoversusSubconscious scanning for threats
Are we evolutionarily adapted to detect certain threats?
Emotion Drives Attention: Detecting the Snake in the GrassJournal of Experimental Psychology: General 2001, Vol. 130, No. 3, 466-478Arne Ohman, Anders Flykt, and Francisco Esteves
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
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
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
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. Phelpshttp://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/309/5735/711
Fig 1. The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785
Conditioned fear: snakes/spiders
Fig 1. The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785
Conditioned fear: race
Fig 1. The Role of Social Groups in the Persistence of Learned Fear (2005) SCIENCE 309 pg 785
Conditioned fear:
snakes/spiders race
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 Cosmideshttp://www.pnas.org/cgi/content/full/98/26/15387
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 birthdayis in February.
Can race be erased? Coalitional computation and social categorization (December 18, 2001) PNAS vol. 98 no. 26 pg 15387–15392
Random Statements
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
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.
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