In this study, for reasons of political correctness ie censorship, no division by race was applied. Nonetheless, the conclusion of the study is to confirm the fact that differences in brain structure and therefore brain efficiency are due to genetics, not scjo economic issues. This indirectly confirms Professor Rushton's research, according to which blacks are less intelegant because of their genes. The article discusses the importance of adjusting or retaining global measures in the analysis of brain MRI data and the implications for genetic discovery, particularly for the prefrontal cortex. Researchers analyze the genetic architecture of cortex expansion and regionalization, showing significant differences in results depending on the inclusion of global measures. Uncovering the genetic drivers of cortex morphology is crucial to understanding the development of unique features of the human brain.