From: Wade T. Smith (wade.t.smith@verizon.net)
Date: Thu 19 Jun 2003 - 15:53:07 GMT
[I've read several unflattering comments upon the protocols and results
of this study, but, it is interesting, and I don't just mean from my
POV.]
Brain shows unconscious prejudices:
Fear center is activated
By William J. Cromie Gazette Staff
You may not think you are prejudiced against other races, gays, or
overweight people, but your brain activity could tell a different story.
A brain area involved with fear flashes more actively when white
college students are exposed to subliminal views of black versus white
faces. The students didn't actually "see" the faces, which were
sandwiched between two patterns they viewed while undergoing brain
scans. But they had a clear, deep-brain reaction to them.
The same type of bias shows up in Web site tests taken by hundreds of
thousands of other people. They reveal unconscious prejudice against
the elderly, gays, women, the obese, and a wide range of other groups.
Such brain and behavior tests might lead you to view the world as a
grim place suffused with hidden hate and fear. But evidently things are
not that bad. When white subjects undergoing brain scans see the black
face long enough for it to register consciously, brain areas involved
with controlled thinking become active. The differences in reactions to
black and white faces then decrease.
"The imprint of culture is what we see in the subliminal exposure,"
explains Mahzarin Banaji, Richard Clarke Cabot Professor of Social
Ethics at Harvard University. "Seeing the face consciously allows
thoughts and feelings to generate a more reasoned response to the face
in view." The research, done in collaboration with William Cunningham
and Marcia Johnson at Yale University, suggests our conscious brain can
lead us away from the prejudices of our unconscious mind.
"To the extent that we can influence what we learn and believe, we can
influence less conscious states of mind," Banaji notes. We can
determine who we are and who we wish to be.
Shocked by bias
A liberal scholar of Indian background, Banaji was shocked when a
computer test she uses to uncover prejudice in others revealed her own
unconscious bias toward black Americans and elderly people. The test
demands that a person quickly associate black faces, or those
representing other groups, with "good" and "bad" labels. Test takers
are given only a fraction of a second to respond, too little time for
anything but a gut reaction.
"It was disconcerting and humbling to discover that my fingers didn't
move as fast when I paired black with good as they did when I paired
white with good," she admits. "I am neither black nor white, and I
profess to hold egalitarian race beliefs. The results suggested that I
should be skeptical about my own ability to be unbiased.
"At first, I didn't believe such biases could be changed by anything
short of a revolution that rearranges the social world as we know it,"
she continues. "But my own students proved me wrong."
One of her graduate students set up a good/bad, white versus black test
that was supervised by a black researcher. White students in that
situation showed less anti-black bias. "Just one black person
exhibiting competence, being in charge, even for a short time, was able
to change associations stamped into peoples' minds over a lifetime,"
Banaji concludes.
There's no way to wipe out all the years of evolution during which
humans and their ancestors learned to fear the unfamiliar, to be ready
to run or fight at any threat. But brains are flexible enough to be
altered by experience. "If this were not so, we would not have seen the
reduction of bias in students who worked with a black researcher,"
Banaji points out. We shouldn't expect such changes to last long, but
it does cause Banaji to feel optimistic about making behavioral changes
that, though are small and temporary, are real.
Harvard is a place where many portraits of distinguished white men
stare from the walls of meeting and dining rooms. An effort to
diversify the portraits, to show more women and nonwhites is underway.
Combined with other modifications in our surroundings, which include
everything from television shows to background music, this sort of
effort could subtly reduce bias, Banaji believes.
Against the elderly
Anyone can determine her or his own prejudices by taking the online
tests. Those that measure race, ethnic, sex, and age bias are available
at tolerance.org. You can view a test demonstration or, by giving some
information about yourself, actually take a test. More than 60
different tests are also available at implicit.harvard.edu. Topics
range from animals to politics.
Banaji and her collaborators put the tests online in September 1998. In
the first month, after television and newspapers reported their
availability, 40,000 tests were taken. Since then, information from 2.5
million of them has gone into research findings published by Banaji and
colleagues.
The most troublesome result is a strong bias against elderly people.
"It's the largest bias we see," Banaji says. "I was very surprised.
People don't openly discuss ageism much, like they do racism or sexism,
yet its strong presence makes it much more insidious."
You would expect such a prejudice to decrease with age, but it doesn't.
Responses show the bias remains large and robust from ages 8 to 68. "As
people get older, they don't necessarily think of themselves as
"elderly," Banaji comments. Fifty-year-olds think of 60- and
70-year-olds as elderly; 60-year-olds think of 70- and 80-year-olds
that way. "Elderly" comes to mean "older than me." Information from
the online tests doesn't reveal why this is, but Banaji has some
thoughts about it. "Age has come to be associated with negative
qualities, such as decreases in stature, power, physical agility, and
cognitive ability," she says. "Of course that's not true for everyone.
I know a 78-year-old colleague who runs up stairs faster than his
students." Whether it's myth or reality, however, generalization lumps
everyone together.
Gays and women
More expected was prejudice against gays and lesbians. "We thought we
would receive lots of angry mail when we added this test, because many
Americans believe this is not a bias but an appropriate value to
uphold," Banaji recalls. "It turns out to be a prejudice that people
are least concerned or ashamed about. People are not happy to see their
prejudices against other races and older people revealed. But they
don't necessarily view an anti-gay bias with the same shame."
There's also relatively less shame in prejudice against the overweight.
People show an implicit bias against the overweight and obese, but they
are not too distressed about it.
Another unexpected finding reveals an unconscious feeling about women
pursuing careers rather than staying at home. You'd think that would be
strictly a male bias, but men and women show it equally. And to a
startling degree. Eighty percent of test takers associate men with a
"work" category and women with a "family" category.
Such prejudices are unconscious, of course, but they could influence
things as and hiring and firing employees. "These tests are a research
and educational tool to raise awareness," Banaji points out. "They
should not be used otherwise. We hope that the test results will leave
each person to decide for him or herself what they wish to do with this
new knowledge that reveals they are sometimes less than they aspire to
be."
Copyright 2003 by the President and Fellows of Harvard College
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