Poverty saps the brain: US-India study
From a shopping mall in New Jersey to the farm fields of India,
experiments show that poverty saps people's brainpower and may lower IQ
by 13 points, scientists said Thursday.
The findings in the US journal Science suggest that being poor can drain a
person's mental resources, leaving him or her less capable of focusing on
other things, like solving problems and controlling impulses.
"Because you have all these other things on your mind, you have less mind
to give to everything else," said co-author Sendhil Mullainathan, a Harvard
University economist.
Rather than blaming poverty on the individual or the environment, the
study suggests that the state of being poor exerts the same effect as
losing a full night's sleep or having lower intelligence.
"We're arguing that being poor can impact cognitive functioning, which
hinders individuals' ability to make good decisions and can cause further
poverty," said co-author Jiaying Zhao, a professor at the University of
British Columbia.
Researchers sampled some 400 people with incomes ranging from $20,000 to
$70,000 at a shopping mall in New Jersey.
The shoppers were asked how they would respond to a hypothetical scenario
in which their car had broken down and would cost a certain amount to fix.
The question was meant to evoke thoughts of a person's own monetary
condition. Some shoppers were told the fix would cost $150, others were told
$1,500.
Then they were given a series of cognitive and impulse control exercises to
complete, such as putting shapes in order or clicking on the correct side of
a computer screen.
The people whose incomes were on the lower end of the scale did the worst
when they were told the cost of the hypothetical repair was higher.
When they were thinking about a cheaper, $150 repair, they performed as
well as the people with higher incomes.
"These pressures create a salient concern in the mind and draw mental
resources to the problem itself. This means we are unable to focus on other
things in life that need our attention," said Zhao.
Researchers also gave tests to 464 sugar cane farmers in India, both before
their once-yearly harvest when they were short on money and after the
harvest when they had more.
They found that the same farmers did better on the tests when they had
cash on hand.
"IQ goes up, cognitive control, or error, goes way down and response times
go way down," said Mullainathan.
Researchers said the findings suggest that financial assistance is too
simplistic of an answer for the problems associated with poverty.
Instead, targeting the concerns that consume the working poor -- such as
childcare -- may be more effective.
"Rather than simply looking at these challenges as a lack of money very
broadly, if we could break it up and simply target the biggest concerns and
deal with them, we might begin to solve other problems as well," said
Mullainathan.
Wonder what their findings would be if it the research was also carried out in africa.Nigeria :(
Source : m.yahoo.com/w/legobpengine/news/poverty-saps-brain-us-india-study-203215314.html?orig_host_hdr=uk.news.yahoo.com&.intl=GB&.lang=en-GB
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