Kids that live in poor neighborhoods don't do as well on cognitive function tests as those who live in higher-income areas.
An analysis published Tuesday by JAMA also showed that lower-income children have lower "brain volume".
According to UPI, higher household income was associated with improved vocabulary, reading skills, and memory.
Researchers note the differences are likely due to kids in higher-income homes had more developed prefrontal and hippocampal brain regions.
The prefrontal cortex has been linked with behavior, personality, and decision making.
While the hippocampus is believed to be involved in learning and memory skills.