Despite doubts last year about human adult neurogenesis, a study shows even 80-year-olds develop new cells in the hippocampus, but such growth is diminished in patients with Alzheimer’s disease.

A mouse study finds that when blood platelets are activated during exercise, they release factors that increase the number of newborn neurons in the hippocampus.

The protein expression data, which are freely available online, could help identify new drug targets for the disease.

Authors of a small study say the two abilities likely evolved in tandem.

Recordings of electrical activity in porcine brains finds similarities to rodent neural tissue.

By stimulating specific neurons in mouse brains, researchers demonstrate that memories from infancy are not lost, but merely difficult to access.

Scientists can livestream how the mouse brain’s hippocampus maps the physical world and accesses those memories.  

Mice who get less attention from their mothers have more copies of a common retrotransposon in the genomes of their hippocampal neurons.

Failure to produce evidence of neural precursor cells and immature neurons raises questions about the role of the process in learning and memory.