A child's brain development can be a bit tricky as many factors can affect it, and according to a new study, these may include family income.
A group of New York researchers from Columbia University conducted a study involving more than a thousand children from 3 to 20 years old belonging in different socio-economic levels. They performed a series of examinations that can provide insight into their brain development such as image scanning, DNA testing, and tests for cognitive function.
Since they wanted to determine whether family income or economic status has some effect on the brain development, they also carried out surveys among parents relating to their income and education.
Upon analyzing the results of these examinations, they discovered that children who are considered to be more intelligent have a thicker brain surface area but thinner cortices. But the most interesting part of the results may be the fact that the level of income and education of the parents may be an indicator of a child's intelligence or the development of their cognitive function.
It's simply believed that families with a higher disposable income are more capable to provide healthier or more nutritious options for their children. Previous studies have already cited how poor neighborhoods have limited access to better nutrition due to lack of money or restricted choices.
They are also more likely to be living in cleaner or more well-maintained environments, which means children are less exposed to pollutants that can potentially harm their well-being.
Nevertheless, the authors want to strongly stress that income should not be the sole measure of a child's intelligence. Moreover, their study needs more corroboration. That's why they're thinking of performing a nationwide study to be participated by low-income mothers. The participants will receive income, some of whom may have higher monthly payments than the other group.