theatlanticcities | Human mental bandwidth is finite. You’ve probably experienced this
before (though maybe not in those terms): When you’re lost in
concentration trying to solve a problem like a broken computer, you’re
more likely to neglect other tasks, things like remembering to take the
dog for a walk, or picking your kid up from school. This is why people
who use cell phones behind the wheel actually perform worse as drivers.
It’s why air traffic controllers focused on averting a mid-air
collision are less likely to pay attention to other planes in the sky.
We only have so much cognitive capacity to spread around. It's a scarce resource.
This understanding of the brain’s bandwidth could fundamentally change
the way we think about poverty. Researchers publishing some groundbreaking findings today in the journal Science
have concluded that poverty imposes such a massive cognitive load on
the poor that they have little bandwidth left over to do many of the
things that might lift them out of poverty – like go to night school, or
search for a new job, or even remember to pay bills on time.
In a series of experiments run by researchers at Princeton, Harvard,
and the University of Warwick, low-income people who were primed to
think about financial problems performed poorly on a series of cognition
tests, saddled with a mental load that was the equivalent of losing an
entire night’s sleep. Put another way, the condition of poverty imposed a
mental burden akin to losing 13 IQ points, or comparable to the
cognitive difference that’s been observed between chronic alcoholics and
The finding further undercuts the theory that poor people, through
inherent weakness, are responsible for their own poverty – or that they
ought to be able to lift themselves out of it with enough effort. This
research suggests that the reality of poverty actually makes it harder
to execute fundamental life skills. Being poor means, as the authors
write, “coping with not just a shortfall of money, but also with a
concurrent shortfall of cognitive resources.”
This explains, for example, why poor people who aren’t good with money
might also struggle to be good parents. The two problems aren’t
What Shafir and his colleagues have identified is not exactly stress.
Rather, poverty imposes something else on people that impedes them even
when biological markers of stress (like elevated heart rates and blood
pressure) aren’t present. Fist tap Dale.