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Being poor means poor intelligence

Economic health disparities are a reality. In two separate studies, researchers found that experiencing poverty in early childhood is linked to smaller brain size and less efficient processing of certain sensory information. Exposure to early life adversity should be considered no less toxic than exposure to lead, alcohol or cocaine. Exposure to poverty in early childhood negatively affects brain development, but good-quality caregiving may help offset this effect.

In one study, published in JAMA Pediatrics, children who grew up in impoverished households showed smaller white and grey matter in their brains compared with those who had more means — these make up the density of nerve connections between different parts of the brain. The less wealthy kids also developed smaller hippocampus and amygdala regions, which are involved in regulating attention, memory and emotions.

According to the researchers from Washington University School of Medicine in St. Louis, the smaller brain region…

Poverty makes you thick

A Journal of Cognitive Neuroscience study was described as a "wake-up call" about the impact of social deprivation.
Normal nine and 10-year-olds from rich and poor backgrounds had differing electrical activity in a part of the brain linked to problem solving. The brains of children from low-income families process information differently to those of their wealthier counterparts.
Since the children were, in health terms, normal in every way, the researchers suspected that "stressful environments" created by low socioeconomic status might be to blame.
Dr Mark Kishiyama, one of the researchers, said: "The low socioeconomic kids were not detecting or processing the visual stimuli as well - they were not getting that extra boost from the prefrontal cortex."
Previous studies have suggested that children in low-income families are spoken to far less - on average hearing 30 million fewer words by the age of four.
Professor Robert Knight, added: "This is a wake-up…