Actually, that's exactly what they're claiming to refute: > A small number of papers had indicated that humans also possessed this capability, specifically in

Actually, that's exactly what they're claiming to refute: > A small number of papers had indicated that humans also possessed this capability, specifically in an interior region of the brain known as the hippocampus, which is associated with memory. > A team from UC San Francisco had hoped to see evidence of this neurogenesis in action. > Team members examined brain tissue samples collected from 59 human subjects who ranged in age from a 14-week-old fetus to a 77-year-old man. But they couldn't find what they were looking for.