Gene Discovery Challenges Traditional Approaches

Researchers at Rockefeller University have identified the Homer1 gene as a powerful regulator of attention, with findings published December 22 in Nature Neuroscience. The study found that mice with lower levels of two specific gene variants, Homer1a and Ania3, demonstrated significantly quieter brain activity and superior ability to concentrate on tasks.

The discovery surprised even the researchers. “We were sure that the more attentive mice would have more activity in the prefrontal cortex, not less,” said Priya Rajasethupathy, who leads the laboratory where the research was conducted. “But it made some sense. Attention is, in part, about blocking out the noise.”