"We went looking for the effects of cocaine," Hurt said. But after a time "we began to ask, 'Was there something else going on?' "
While the cocaine-exposed children and a group of nonexposed controls performed about the same on tests, both groups lagged on developmental and intellectual measures compared to the norm. Hurt and her team began to think the "something else" was poverty.
As the children grew, the researchers did many evaluations to tease out environmental factors that could be affecting their development. On the upside, they found that children being raised in a nurturing home - measured by such factors as caregiver warmth and affection and language stimulation - were doing better than kids in a less nurturing home. On the downside, they found that 81 percent of the children had seen someone arrested; 74 percent had heard gunshots; 35 percent had seen someone get shot; and 19 percent had seen a dead body outside - and the kids were only 7 years old at the time. Those children who reported a high exposure to violence were likelier to show signs of depression and anxiety and to have lower self-esteem.
http://articles.philly.com/2013-07-22/n ... nded-study
