"One of the most important things Martha is doing is pushing this, maintaining awareness on the long-term effects of poverty on outcomes," he said.
In the meantime, the research is still developing. There some puzzling results that don't yet make sense, Farah said, and it's hard to say at this point precisely what aspects of social class cause brain differences.
There is no large consortium of scientists working on problems of the brain and social class, either. On a broader scale, there are relatively few studies done about the brain and cognition using participants from low socioeconomic backgrounds.
"Most cognitive neuroscience is done with college sophomores in universities that are wealthy enough to have an imaging center," Farah said. "We are looking at a tiny slice of humanity."
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