The brain attempts to adapt and respond to those challenges and that occurs in large part through changes in expression of brain genes through epigenetic mechanisms. (scientificamerican.com)
First, the researchers looked at published databases of positively selected brain genes, which have been classified into 22 categories according to their function. (sciencemag.org)
The evolution of brain genes, therefore, appears purely human, the scientists say. (sciencenewsforstudents.org)