"The Adult Brain Does Grow New Neurons"

(Josh Cohen) #1

“Study points toward lifelong neuron formation in the human brain’s hippocampus, with implications for memory and disease”

For decades, scientists have debated whether the birth of new neurons—called neurogenesis—was possible in an area of the brain that is responsible for learning, memory and mood regulation. A growing body of research suggested they could, but then a Nature paper last year raised doubts.

Now, a new study published today in another of the Nature family of journals— Nature Medicine —tips the balance back toward “yes.” In light of the new study, “I would say that there is an overwhelming case for the neurogenesis throughout life in humans,” Jonas Frisén, a professor at the Karolinska Institute in Sweden, said in an e-mail. Frisén, who was not involved in the new research, wrote a News and Views about the study in the current issue of Nature Medicine.