- Participants
- Income groups 
- Standardized test scores
- Neuroimaging-data acquisition
- Structural-imaging analyses 

 Correlation of cortical grey matter with the income-achievement gap: Methods

Cortical thickness in the clusters found to correlate with MCAS performance could account for as much as 44% of the income-achievement gap present in the sample that was studied.

Correlation of cortical gray matter with the income-achievement gap results

- A study found that cortical grey matter was significantly greater in students with higher-income backgrounds when compared to students with lower-income backgrounds. 
- Cortical thickness was found to be greater across many lobes of the brain in students with higher-income backgrounds when compared to students with lower-income backgrounds
- Greater cortical thickness was found to be associated with better test performance. 


Barnard College

Research suggests that certain differences in brain structure between students may correlate with differences in their economic statuses. 

Neuroanatomical correlates of the income achievement gap

Mackey A. P., Finn A. S., Leonard J. A., Jacoby-Senghor D. S., West M. R., Gabrieli C. F. O., et al. . (2015). Neuroanatomical correlates of the income-achievement gap. Psychol. Sci. 26, 925–933. 10.1177/0956797615572233

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